Articles | Volume 20, issue 1
https://doi.org/10.5194/fr-20-69-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/fr-20-69-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
03 Feb 2017
Research article |
| 03 Feb 2017
Turtle shell bone and osteoderm histology of Mesozoic and Cenozoic stem-trionychian Adocidae and Nanhsiungchelyidae (Cryptodira: Adocusia) from Central Asia, Mongolia, and North America
University of Zurich, Palaeontological Institute and Museum, Karl
Schmid-Strasse 4, 8006 Zurich, Switzerland
Elena V. Syromyatnikova
A. A. Borissiak Paleontological Institute, Russian Academy of
Sciences, 123, Profsoyuznaya ul., Moscow, 117997, Russia
Zoological Institute of the Russian Academy of Sciences,
Universitetskaya Emb 1, St. Petersburg, 199034, Russia
Igor G. Danilov
Zoological Institute of the Russian Academy of Sciences,
Universitetskaya Emb 1, St. Petersburg, 199034, Russia
Department of Vertebrate Zoology, Saint Petersburg State University,
Universitetskaya Emb. 7/9, St. Petersburg, 199034, Russia
Related authors
Florian Witzmann, Carolin Haug, Christian Klug, Johannes Müller, Torsten M. Scheyer, and Alexander R. Schmidt
Foss. Rec., 24, 443–444, https://doi.org/10.5194/fr-24-443-2021, https://doi.org/10.5194/fr-24-443-2021, 2021
Florian Witzmann, Carolin Haug, Christian Klug, Johannes Müller, Torsten M. Scheyer, and Alexander R. Schmidt
Foss. Rec., 24, 443–444, https://doi.org/10.5194/fr-24-443-2021, https://doi.org/10.5194/fr-24-443-2021, 2021
Related subject area
Evolution and phylogeny
The life cycle in late Paleozoic eryopid temnospondyls: developmental variation, plasticity and phylogeny
A unique, large-sized stem Odonata (Insecta) found in the early Pennsylvanian of New Brunswick (Canada)
Sheltered preservation in Ordovician trilobites
Determining the gait of Miocene, Pliocene, and Pleistocene horses from fossilized trackways
†Cretolixon – a remarkable new genus of rhopalosomatid wasps (Hymenoptera: Vespoidea: Rhopalosomatidae) from chemically tested, mid-Cretaceous Burmese (Kachin) amber supports the monophyly of Rhopalosomatinae
The youngest occurrence of embolomeres (Tetrapoda: Anthracosauria) from the Sunjiagou Formation (Lopingian, Permian) of North China
Sampling fossil floras for the study of insect herbivory: how many leaves is enough?
A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota
Quantitative analysis of suture lines in Carboniferous ammonoids
Osseous anomalies of the cryptobranchid Eoscapherpeton asiaticum (Amphibia: Caudata) from the Late Cretaceous of Uzbekistan
Growth patterns, sexual dimorphism, and maturation modeled in Pachypleurosauria from Middle Triassic of central Europe (Diapsida: Sauropterygia)
New information on the Cenomanian bothremydid turtle Algorachelus based on new, well-preserved material from Spain
A case study of developmental palaeontology in Stereosternum tumidum (Mesosauridae, Parareptilia)
Postcrania of large dissorophid temnospondyls from Richards Spur, Oklahoma
Description of the skeleton of the fossil beaked whale Messapicetus gregarius: searching potential proxies for deep-diving abilities
Foramina in plesiosaur cervical centra indicate a specialized vascular system
The wasp larva's last supper: 100 million years of evolutionary stasis in the larval development of rhopalosomatid wasps (Hymenoptera: Rhopalosomatidae)
The fossil history of pseudoscorpions (Arachnida: Pseudoscorpiones)
The blueprint of the Amphiesmenoptera – Tarachoptera, a new order of insects from Burmese amber (Insecta, Amphiesmenoptera)
Modeling the physiology of the aquatic temnospondyl Archegosaurus decheni from the early Permian of Germany
Reinvestigation of Protelytron permianum (Insecta; Early Permian; USA) as an example for applying reflectance transformation imaging to insect imprint fossils
A new species of Cyclotosaurus (Stereospondyli, Capitosauria) from the Late Triassic of Bielefeld, NW Germany, and the intrarelationships of the genus
New remarkable Late Jurassic teleosts from southern Germany: Ascalaboidae n. fam., its content, morphology, and phylogenetic relationships
New specimen of Cacops woehri indicates differences in the ontogenetic trajectories among cacopine dissorophids
The stratigraphic importance of the brontothere (cf. Diplacodon elatus) in the Brennan Basin Member of the Duchesne River Formation of Utah
Do tracks yield reliable information on gaits? – Part 1: The case of horses
Rainer R. Schoch
Foss. Rec., 24, 295–319, https://doi.org/10.5194/fr-24-295-2021, https://doi.org/10.5194/fr-24-295-2021, 2021
Short summary
Short summary
Eryopids were 2 m large relatives of modern amphibians that formed top predators in the Paleozoic. They are found in aquatic deposits and apparently preyed on fishes. Their life cycle is preserved in a single species, Onchiodon labyrinthicus, from eastern Germany. It existed in a stressed ecosystem, and the broad variation in the studied sample correlates with seasonal fluctuations. Eryopids evolved into increasingly large, heavily built inhabitants of streams and seasonal water bodies.
Olivier Béthoux, Rowan E. Norrad, Matthew R. Stimson, Olivia A. King, Luke F. Allen, Isabelle Deregnaucourt, Steven J. Hinds, Jake H. Lewis, and Jörg W. Schneider
Foss. Rec., 24, 207–221, https://doi.org/10.5194/fr-24-207-2021, https://doi.org/10.5194/fr-24-207-2021, 2021
Short summary
Short summary
A specimen of an extinct relative of damsel- and dragonflies was discovered from ca. 310-million-years-old strata from New Brunswick (Canada). It is composed of an incomplete hindwing belonging to a new species whose wingspan was about 35 cm. Despite its incompleteness, it composes a useful addition to our knowledge of the early evolution of the group, owing to its unique combination of traits.
Oldřich Fatka, Petr Budil, and Petr Kraft
Foss. Rec., 24, 193–205, https://doi.org/10.5194/fr-24-193-2021, https://doi.org/10.5194/fr-24-193-2021, 2021
Short summary
Short summary
Sixteen samples contain one to six Ordovician trilobites preserved in the protected space inside of empty cephalopod conchs or under diverse parts of exoskeletons of much larger disarticulated trilobites. Analyses of the level of articulation of trilobites in combination with their orientation, disposition, and placement make it possible to conclude that the hidden trilobites deliberately entered shells of dead cephalopods for food, refuge, ecdysis, reproduction or lodging.
Alan Vincelette
Foss. Rec., 24, 151–169, https://doi.org/10.5194/fr-24-151-2021, https://doi.org/10.5194/fr-24-151-2021, 2021
Short summary
Short summary
This study compares footprints made by modern horses with two fossil trackways. One shows a Pleistocene horse in a gallop of 9 m/s, perhaps fleeing predators or migrating. More intriguing is the trackway of a Miocene horse with diagonal couplets in a gait of 2 m/s. This best matches the artificial gait of the rack/tölt only found in breeds such as the Saddlebred, Icelandic, and Paso, providing more evidence that early horses possessed a greater variety of useful gaits than most modern horses.
Volker Lohrmann, Qi Zhang, Peter Michalik, Jeremy Blaschke, Patrick Müller, Laurent Jeanneau, and Vincent Perrichot
Foss. Rec., 23, 215–236, https://doi.org/10.5194/fr-23-215-2020, https://doi.org/10.5194/fr-23-215-2020, 2020
Short summary
Short summary
A new mid-Cretaceous rhopalosomatid wasp, Cretolixon alatum Lohrmann gen. et sp. nov., is described from Burmese (Kachin) amber. The new genus has a unique mixture of characters, some of which are only known from the recent brachypterous genus Olixon and others of which are known only from the recent macropterous genera. Thus, Cretolixon not only provides further evidence for the monophyly of the family but also contributes evidence for the monophyly of the Rhopalosomatinae.
Jianye Chen and Jun Liu
Foss. Rec., 23, 205–213, https://doi.org/10.5194/fr-23-205-2020, https://doi.org/10.5194/fr-23-205-2020, 2020
Short summary
Short summary
In this paper, we describe a new species of embolomere from 255-million-year-old fossil beds from northern China. This group of ancient animals is closely related to amniotes (reptiles, birds, and mammals) and was previously thought to have gone extinct around 273 million years ago. The new discovery indicates that North China, with its ancient tropical rain forest, became a last reservoir for these animals right before the end-Permian mass extinction.
Sandra R. Schachat, S. Augusta Maccracken, and Conrad C. Labandeira
Foss. Rec., 23, 15–32, https://doi.org/10.5194/fr-23-15-2020, https://doi.org/10.5194/fr-23-15-2020, 2020
Short summary
Short summary
Insects have been feeding on plants for over 300 million years. The fossil record preserves evidence of this behavior: it is possible to examine a fossilized leaf and see the spots where insects ate it or laid their eggs in it. The study of these insect
traceson leaves shows us how insects have adapted to changing climates. Here, we address the question of how many leaves from a single fossil locality must be examined to permit statistically robust comparisons in deep time.
Walter G. Joyce, Yann Rollot, and Richard L. Cifelli
Foss. Rec., 23, 1–13, https://doi.org/10.5194/fr-23-1-2020, https://doi.org/10.5194/fr-23-1-2020, 2020
Short summary
Short summary
Baenids are a group of fossil turtles with a rich fossil record that spans from the Late Cretaceous (Campanian) to Eocene of North America. Only a few fossils are known that document the early evolution of the group. We here describe a new species of baenid, Lakotemys australodakotensis, from the Early Cretaceous (Berriasian to Valanginian) Lakota Formation of South Dakota, USA. Phylogenetic analysis suggests that this is the oldest known baenid turtle.
Michael Wegerer, Kenneth De Baets, and Dieter Korn
Foss. Rec., 21, 223–236, https://doi.org/10.5194/fr-21-223-2018, https://doi.org/10.5194/fr-21-223-2018, 2018
Short summary
Short summary
Two morphometric methods are applied for the analysis of suture lines in Early Carboniferous ammonoids: (1) classic metric data using multivariate statistic methods and (2) outline data are analysed using the elliptic Fourier analysis. Both methods lead to similar results and demonstrate ontogenetic and phylogenetic trends in these ammonoids: (1) a general decrease in the amplitude of lobes and saddles, (2) a proportional widening of the external lobe, and (3) a heightening of the median saddle.
Pavel Skutschas, Veniamin Kolchanov, Elizaveta Boitsova, and Ivan Kuzmin
Foss. Rec., 21, 159–169, https://doi.org/10.5194/fr-21-159-2018, https://doi.org/10.5194/fr-21-159-2018, 2018
Short summary
Short summary
Paleopathologies among fossil members of modern groups of amphibians are poorly documented. We describe pathologies of the fossil salamander Eoscapherpeton asiaticum from the Late Cretaceous of Uzbekistan. These pathologies can result from trauma, infection from trauma and congenital disorders. The occurrence of several traumatic femoral pathologies in Eoscapherpeton could result from intraspecific aggressive behavior. Bone pathologies are described for the first time in fossil salamanders.
Nicole Klein and Eva Maria Griebeler
Foss. Rec., 21, 137–157, https://doi.org/10.5194/fr-21-137-2018, https://doi.org/10.5194/fr-21-137-2018, 2018
Adán Pérez-García
Foss. Rec., 21, 119–135, https://doi.org/10.5194/fr-21-119-2018, https://doi.org/10.5194/fr-21-119-2018, 2018
Short summary
Short summary
The Spanish Algorachelus peregrinus is the oldest pleurodiran turtle known in the Northern Hemisphere. New material is presented, including several shells. The patterns by which some of them were disarticulated are analyzed. Several pathologies are identified. The knowledge about the anatomy and intraspecific variability is improved. Algorachelus is recognized in the Middle East and North America. The oldest known dispersal event of Pleurodira from Gondwana to Laurasia is characterized.
Constanze Bickelmann and Linda A. Tsuji
Foss. Rec., 21, 109–118, https://doi.org/10.5194/fr-21-109-2018, https://doi.org/10.5194/fr-21-109-2018, 2018
Short summary
Short summary
Mesosaurs were reptiles that lived around 280 mya. They were the first land reptile group to return to the water. Study of a fossil from the Museum für Naturkunde, Berlin reveals a previously unobserved baby skeleton near the adult. This small skeleton can tell us about how these creatures grew; the lower segment of the hind limb is already proportionally larger than the upper hind limb and the lower and upper forelimbs. This may be because young mesosaurs needed to swim right from birth.
Bryan M. Gee and Robert R. Reisz
Foss. Rec., 21, 79–91, https://doi.org/10.5194/fr-21-79-2018, https://doi.org/10.5194/fr-21-79-2018, 2018
Short summary
Short summary
This paper presents a description of an extremely well-preserved and articulated skeleton of a temnospondyl amphibian from the early Permian of Oklahoma. Postcranial material is not often well-preserved or well-described in the literature for this group, known as dissorophids, and acquiring new data on this region of the skeleton is important for understanding the evolution of the group. It also represents the first documentation at this site of a genus that was otherwise known only from Texas.
Benjamin Ramassamy, Olivier Lambert, Alberto Collareta, Mario Urbina, and Giovanni Bianucci
Foss. Rec., 21, 11–32, https://doi.org/10.5194/fr-21-11-2018, https://doi.org/10.5194/fr-21-11-2018, 2018
Short summary
Short summary
Extant beaked whales perform deep dives to forage for squids. We studied the morphology of the fossil ziphiid Messapicetus gregarius to evaluate its ability to perform such dives. Our analysis suggests an enlargement of the pterygoid sinus system in deep divers. In M. gregarius, the pterygoid sinus is enlarged, but other lines of evidence indicate that the coastal environment also represented an important part of its home range.
Tanja Wintrich, Martin Scaal, and P. Martin Sander
Foss. Rec., 20, 279–290, https://doi.org/10.5194/fr-20-279-2017, https://doi.org/10.5194/fr-20-279-2017, 2017
Short summary
Short summary
Plesiosaurians retain a very long neck but greatly reduce neck flexibility, and the cervicals have large, paired, and highly symmetrical foramina on the ventral side of the centrum, traditionally termed
subcentral foramina, and on the floor of the neural canal. We found that these dorsal and the ventral foramina are connected by a canal. The foramen are not for nutrient transfer; they are the osteological correlates of a highly paedomorphic vascular system in the neck of plesiosaurs.
Volker Lohrmann and Michael S. Engel
Foss. Rec., 20, 239–244, https://doi.org/10.5194/fr-20-239-2017, https://doi.org/10.5194/fr-20-239-2017, 2017
Short summary
Short summary
Amber functions as a window into the past, capable of capturing behaviors
frozenfor millions of years. Here, we report on the exceptionally rare discovery of a dinosaur-age larva of a stinging wasp, feeding on its cricket host, in mid-Cretaceous amber from Myanmar. It reveals a considerable constancy in the biology of this particular family over the last 100 million years. The excellent preservation of the larva is remarkable and due solely to the fidelity permitted by inclusion in amber.
Danilo Harms and Jason A. Dunlop
Foss. Rec., 20, 215–238, https://doi.org/10.5194/fr-20-215-2017, https://doi.org/10.5194/fr-20-215-2017, 2017
Short summary
Short summary
We review the fossil history of pseudoscorpions (Arachnida: Pseudoscorpiones), one of the oldest terrestrial lineages with
a fossil record that goes back to the Devonian. Pseudoscorpions do not fossilise easily, and records from the Mesozoic and
Cenozoic consist almost exclusively of amber inclusions. Overall, 16 of the 26 recent families have been documented from
fossils. This is a group of evolutionary stasis and we discuss aspects of palaeobiology, preservation, and ecology.
Wolfram Mey, Wilfried Wichard, Patrick Müller, and Bo Wang
Foss. Rec., 20, 129–145, https://doi.org/10.5194/fr-20-129-2017, https://doi.org/10.5194/fr-20-129-2017, 2017
Short summary
Short summary
Based on a total of 14 inclusions from Burmese amber the new, extinct insect order Tarachoptera was established. The new order Tarachoptera is placed in the superorder Amphiesmenoptera. The species of Tarachoptera are tiny insects with a wing span of 2.3–4.5 mm, but are highly specialized according to their aberrant morphology. They lived in the forests of Southeast Asia about 100 million years ago.
Florian Witzmann and Elizabeth Brainerd
Foss. Rec., 20, 105–127, https://doi.org/10.5194/fr-20-105-2017, https://doi.org/10.5194/fr-20-105-2017, 2017
Short summary
Short summary
Based on the estimation of its body mass and metabolic rate, we calculated heat balance, gas exchange, osmoregulation, and digestion of the 290-million-year-old aquatic amphibian Archegosaurus. Our results suggest that its physiology was more fish- than tetrapod-like in many respects. We conducted this study, which is mainly based on theoretical calculations and comparison with extant analogs, to shed light on the physiology and lifestyle of early tetrapods.
Olivier Béthoux, Artémis Llamosi, and Séverine Toussaint
Foss. Rec., 20, 1–7, https://doi.org/10.5194/fr-20-1-2016, https://doi.org/10.5194/fr-20-1-2016, 2016
Short summary
Short summary
Fossil insects preserved as an imprint on laminae have subtle differences in relief which can be difficult to photograph. Recourse to reflectance transformation imaging allowed us to deliver exhaustive and interactive photographic data for Protelytron permianum. Based on these data we were able ascertain that it is an early relative of earwigs. In order to better appreciate its elaborate hind wing folding mechanism, we provide guidelines to build and operate a paper model.
Florian Witzmann, Sven Sachs, and Christian J. Nyhuis
Foss. Rec., 19, 83–100, https://doi.org/10.5194/fr-19-83-2016, https://doi.org/10.5194/fr-19-83-2016, 2016
Short summary
Short summary
In this study, the well-preserved skull of a giant amphibian from the Late Triassic Stuttgart Formation (Schilfsandstein) of Bielefeld-Sieker in NW Germany is described and a new species, Cyclotosaurus buechneri sp. nov., is erected. Cyclotosaurus buechneri represents the only unequivocal evidence of Cyclotosaurus in northern Germany. The amphibian skull was found more than 40 years ago and is well known in Bielefeld and the surrounding areas but has so far never been described.
G. Arratia
Foss. Rec., 19, 31–59, https://doi.org/10.5194/fr-19-31-2016, https://doi.org/10.5194/fr-19-31-2016, 2016
Short summary
Short summary
Complete morphological descriptions of exceptionally beautifully preserved Late Jurassic fishes from Bavaria (e.g., Ettling and Eichsttät), southern Germany, are provided for a new genus and species, which is endemic of Ettling and for a new family, Ascalaboidae. The new family is only known from marine Upper Jurassic localities of Europe and is interpreted as an extinct and primitive group of Teleostei, which is considered the largest group within osteichthyans (bony fishes).
N. B. Fröbisch, A. Brar, and R. R. Reisz
Foss. Rec., 18, 73–80, https://doi.org/10.5194/fr-18-73-2015, https://doi.org/10.5194/fr-18-73-2015, 2015
Short summary
Short summary
Here we describe a large specimen of the Paleozoic dissorophid amphibian Cacops woehri from the Fort Sill locality in Oklahoma, which was previously only known from a partial juvenile skull. The new data show that, in contrast to the closely related species C. morrisi, C. woehri underwent only subtle changes in skull morphology in late ontogeny, which indicates different functional demands possibly associated with a different ecology.
B. J. Burger and L. Tackett II
Foss. Rec., 17, 69–74, https://doi.org/10.5194/fr-17-69-2014, https://doi.org/10.5194/fr-17-69-2014, 2014
K. Kienapfel, S. Läbe, and H. Preuschoft
Foss. Rec., 17, 59–67, https://doi.org/10.5194/fr-17-59-2014, https://doi.org/10.5194/fr-17-59-2014, 2014
Cited articles
Brinkman, D. B. and Nicholls, E. L.: New specimen of Basilemys praeclara Hay and its bearing on the relationships of the Nanhsiungchelyidae (Reptilia: Testudines), J. Paleont., 67, 1027–1031, 1993.
Brinkman, D. B. and Peng, J.-H.: A new species of Zangerlia (Testudines: Nanhsiungchelyidae) from the Upper Cretaceous redbeds at Bayan Mandahu, Inner Mongolia, and the relationships of the genus, Can. J. Earth Sci., 33, 526–540, 1996.
Brinkman, D. B., Tong, H.-Y., Li, H., Sun, Y., Zhang, J.-S., Godefroit, P., and Zhang, Z.-M.: New exceptionally well-preserved specimens of “Zangerlia”neimongolensis from Bayan Mandahu, Inner Mongolia, and their taxonomic significance, C.R. Palevol, 14, 577–587, https://doi.org/10.1016/j.crpv.2014.12.005, 2015.
Chkhikvadze, V. M.: Tertiary Turtles of the Zaissan Depression, Metsniereba Publishers, Tbilisi, 100 pp., 1973 (in Russian).
Chkihkvadze, V. M.: Paleogenowyje cerepachi SSSR [Paleogene turtles of the USSR; Neogene Schildkröten der UdSSR], Tiflis (Mezniereba), 96 pp., 1990.
Chkhikvadze, V. M.: An annotated catalogue of Paleogene, Neogene and Recent turtles of Northern Eurasia [In Russian], Georgian National Museum – Proceedings of the Natural and Prehistoric Section, 2, 96–113, 2010.
Danilov, I. G. and Parham, J. F.: A redescription of `Plesiochelys' tatsuensis from the Late Jurassic of China, with comments on the antiquity of the crown clade Cryptodira, J. Vertebr. Paleontol., 26, 573–580, 2006.
Danilov, I. G. and Syromyatnikova, E. V.: New materials on turtles of the family Nanhsiungchelyidae from the Cretaceous of Uzbekistan and Mongolia, with a review of the nanhsiungchelyid record in Asia, Proc. Zool. Inst. RAS, 213, 3–25, 2008.
Danilov, I. G. and Syromyatnikova, E. V.: Phylogeny of the extinct turtle clade Adocusia, Gaffney Turtle Symposium (17–18 October 2009, Drumheller, Canada), Drumheller, Canada, 44–51, 2009a.
Danilov, I. G. and Syromyatnikova, E. V.: Phylogenetic analysis of turtles of the superfamily Adocoidea [In Russian], in: Modern Paleontology: Classical and New Methods – 2009, Paleontological Institute of the Russian Academy of Sciences, Moscow, edited by: Rozanov, A. Y., Lopatin, A. V., and Parkhaev, P. Y., 67–82, 2009b.
Danilov, I. G. and Vitek, N. S.: Cretaceous trionychids of Asia: an expanded review of their record and biogeography [published 16 August 2012], in: Morphology and Evolution of Turtles. Proceedings of the Gaffney Turtle Symposium (2009) in Honor of Eugene S Gaffney. Vertebrate Paleobiology and Paleoanthropology Series [ISBN 978-94-007-4308-3; 577 pp.], edited by: Brinkman, D. B., Holroyd, P. A., and Gardner, J. D., Springer, Dordrecht, 419–438, 2013.
Danilov, I. G., Sukhanov, V. B., and Syromyatnikova, E. V.: New materials on turtles of the family Adocidae with a review of the adocid record in Asia, Proc. Zool. Inst. RAS, 315, 101–132, 2011.
Danilov, I. G., Sukhanov, V. B., and Syromyatnikova, E. V.: Redescription of Zangerlia dzamynchondi (Testudines: Nanhsiungchelyidae) from the Late Cretaceous of Mongolia, with a reassessment of the phylogenetic position and relationships of Zangerlia [published 16 August 2012], in: Morphology and Evolution of Turtles. Proceedings of the Gaffney Turtle Symposium (2009) in Honor of Eugene S Gaffney. Vertebrate Paleobiology and Paleoanthropology Series [ISBN 978-94-007-4308-3; 577 pp.], edited by: Brinkman, D. B., Holroyd, P. A., and Gardner, J. D., Springer, Dordrecht, 407–417, 2013a.
Danilov, I. G., Syromyatnikova, E. V., Skutschas, P. P., Kodrul, T. M., and Jin, J.: The first `true' Adocus (Testudines, Adocidae) from the Paleocene of Asia, J. Vertebr. Paleontol., 33, 1071–1080, https://doi.org/10.1080/02724634.2013.768254, 2013b.
Danilov, I. G., Hirayama, R., Sukhanov, V. B., Suzuki, S., Watabe, M., and Vitek, N. S.: Cretaceous soft-shelled turtles (Trionychidae) of Mongolia: new diversity, records and a revision, J. Syst. Palaeontol., 12, 799–832, https://doi.org/10.1080/14772019.2013.847870, 2014.
Delfino, M., Scheyer, T. M., Fritz, U., and Sánchez-Villagra, M. R.: An integrative approach to examining a homology question: shell structures in soft-shelled turtles, Biol. J. Linn. Soc., 99, 462–476, https://doi.org/10.1111/j.1095-8312.2009.01356.x, 2010.
de Spix, J. B.: Animalia nova sive species novae Testudinum et Ranarum, quas in itinere per Brasiliam annis MDCCCXVII – MDCCCXX jussu et auspiciis Maximiliani Josephi I. Bavariae Regis suscepto collegit et descripsit, Leipzig, 53 pp., 1824.
Eberth, D. A.: The geology, in: Dinosaur Provincial Park. A Spectacular Ancient Ecosystem Revealed, edited by: Currie, P. J. and Koppelhus E. B., Indiana University Press, Bloomington, Indiana, 54–82, 2005.
Francillon-Vieillot, H., Buffrénil, V. de, Castanet, J., Géraudie, J., Meunier, F. J., Sire, J. Y., Zylberberg, L., and de Ricqlès, A.: Microstructure and mineralization of vertebrate skeletal tissues, in: Skeletal Biomineralization: Patterns, Processes and Evolutionary Trends, edited by: Carter, J. G., Van Nostrand Reinhold, New York, 471–530, 1990.
Hay, O. P.: Bibliography and catalogue of the fossil vertebrata of North America, USGS Bull., 179, 1–868, 1902.
Hirayama, R.: Preliminary report of the fossil turtles from the Kitadani Formation (Early Cretaceous) of the Tetori Group of Katsuyama, Fukui Prefecture, Central Japan, Mem. Fukui Prefect. Dinosaur Mus., 1, 29–40, 2002 (in Japanese).
Hirayama, R., Sakurai, K., Chitoku, T., Kawakami, G., and Kito, N.: Anomalochelys angulata, an unusual land turtle of Family Nanhsiungchelyidae (Superfamily Trionychoidea; Order Testudines) from the Upper Cretaceous of Hokkaido, North Japan, Russ. J. Herpetol., 8, 127–138, 2001.
Hirayama, R., Isaji, S., and Hibino, T.: Kappachelys okurai gen. et sp. nov., a new stem soft-shelled turtle from the Early Cretaceous of Japan [published 16 August 2012], in: Morphology and Evolution of Turtles. Proceedings of the Gaffney Turtle Symposium (2009) in Honor of Eugene S Gaffney, Vertebrate Paleobiology and Paleoanthropology Series [ISBN 978-94-007-4308-3; 577 pp.], edited by: Brinkman, D. B., Holroyd, P. A., and Gardner, J. D., Springer, Dordrecht, 179–185, 2013.
Hummel, K.: Die fossilen Weichschildkröten (Trionychia), Geol. Pal. Abh., 16, 359–487, 1929.
Hutchison, J. H.: Diversity of Cretaceous turtle faunas of Eastern Asia and their contribution to the turtle faunas of North America, Paleontol. Soc. Korea, Spec. Publ., 4, 27–38, 2000.
Joyce, W. G.: A review of the fossil record of turtles of the clade Pan-Carettochelys, Peabody Mus. Nat His. Yale Univ. Bull., 55, 3–33, https://doi.org/10.3374/014.055.0102, 2014.
Joyce, W. G. and Norell, M. A.: Zangerlia ukhaachelys, new species, a nanhsiungchelyid turtle from the late Cretaceous of Ukhaa Tolgod, Mongolia, Am. Mus. Novit., 3481, 1–19, 2005.
Joyce, W. G., Parham J. F., and Gauthier, J. A.: Developing a protocol for the conversion of rank-based taxon names to phylogenetically defined clade names, as exemplified by turtles, J. Paleont., 78, 989–1013, https://doi.org/10.1666/0022-3360(2004)078<0989:DAPFTC>2.0.CO;2, 2004.
Joyce, W. G., Rabi, M., Clark, J. M., and Xu, X.: A toothed turtle from the Late Jurassic of China and the global biogeographic history of turtles, BMC Evolutionary Biology, 16, 236, 29 pp., https://doi.org/10.1186/s12862-016-0762-5, 2016.
Kuznetsov, V. V.: A freshwater turtle from the Senonian of northeastern Cis-Aralia, Paleontologicheskiy Zhurnal, 4, 498–500, 1976 (in Russian).
Meylan, P. A. and Gaffney, E. S.: The skeletal morphology of the Cretaceous cryptodiran turtle, Adocus, and the relationships of the Trionychoidea, Am. Mus. Novit., 2941, 1–60, 1989.
Młynarski, M.: Zangerlia testudinimorpha n. gen., n. sp., a primitive land tortoise from the Upper Cretaceous of Mongolia, Palaeontol. Polonica, 27, 85–92, 1972.
Młynarski, M.: Testudines, Handbuch der Paläoherpetologie, Teil 7, in: Handbook of Paleoherpetology, Part 7, Gustav Fischer Verlag, Stuttgart, 130, 1976.
Nakajima, Y., Danilov, I. G., Hirayama, R., Sonoda, T., and Scheyer, T. M.: Morphological and histological evidences for the oldest known softshell turtles from Japan, J. Vertebr. Paleontol., in press, 2017.
Nessov, L. A.: Skull morphology of the Early Cretaceous turtle belonging to the family Adocidae, in: Gerpetol. Sborhik, Trudy Zool. Inst., Akad. Nauk. USSR, edited by: Ananjeva, N. B., Borkin, K. L., and Darevsky, I. S., 75–80, 1977 (in Russian).
Nessov, L. A.: About phylogenetic relationships and history of distribution of some families of continental turtles, Zhizn' na drevnikh kontinentakh, ee stanovleniye i razvitiye. Trudy XXIII sessii Vsesoyuznogo Paleontologicheskogo Obshchestva, Izdatel'stvo `Nauka', Leningrad, 133–141, 1981 (in Russian).
Nessov, L. A. and Khosatzky, L. I.: Freshwater turtle from the Early Cretaceous of Fergana, Ezhegodnik Vsesoyuznogo Paleontologicheskogo Obshchestva, 20, 248–262, 1977 (in Russian).
Nessov, L. A. and Krasovskaya, T. B.: Changes in the composition of turtles assemblages of Late Cretaceous of Middle Asia, Vestnik Leningradskogo Gosudarstvennogo Universiteta, 3, 15–25, 1984 (in Russian).
Scheyer, T. M.: Comparative bone histology of the turtle shell (carapace and plastron): implications for turtle systematics, functional morphology, and turtle origins, Mathematisch-Naturwissenschaftliche Fakultät, Doctoral Thesis, University of Bonn, Germany, 343 pp., available at: http://hss.ulb.uni-bonn.de/2007/1229/1229.htm, 2007.
Scheyer, T. M. and Anquetin, J.: Bone histology of the Middle Jurassic turtle shell remains from Kirtlington, Oxfordshire, England, Lethaia, 41, 85–96, https://doi.org/10.1111/j.1502-3931.2007.00044.x, 2008.
Scheyer, T. M. and Sánchez-Villagra, M. R.: Carapace bone histology in the giant pleurodiran turtle Stupendemys geographicus: phylogeny and function, Acta Palaeontol. Pol., 52, 137–154, 2007.
Scheyer, T. M., Sander, P. M., Joyce, W. G., Böhme, W., and Witzel, U.: A plywood structure in the shell of fossil and living soft-shelled turtles (Trionychidae) and its evolutionary implications, Org. Divers. Evol., 7, 136–144, https://doi.org/10.1016/j.ode.2006.03.002, 2007.
Scheyer, T. M., Mörs, T., and Einarsson, E.: First record of soft-shelled turtles (Cryptodira, Trionychidae) from the Late Cretaceous of Europe, J. Vertebr. Paleontol., 32, 1027–1032, https://doi.org/10.1080/02724634.2012.685036, 2012.
Seeley, H. G.: Note on Psephophorus polygonus, v. Meyer, a new type of chelonian reptile allied to the leathery turtle, Q. J. Geol. Soc. London, 36, 406–413, 1880.
Sukhanov, V. B.: Mesozoic turtles of Middle and Central Asia, in: The Age of Dinosaurs in Russia and Mongolia, edited by: Benton, M. J., Shishkin, M. A., Unwin, D. M., and Kurochkin, E. N., Cambridge University Press, Cambridge, 309–367, 2000.
Sukhanov, V. B. and Narmandakh, P.: Turtles of the Basilemys group (Chelonia, Dermatemydidae) in Asia. Trudy Sovmestnoj Sovetsko-Mongol'skoj Paleontologičeskoj Ekspedicii, 2, 94–101, 1975 (in Russian).
Sukhanov, V. B. and Narmandakh, P.: New taxa of Mesozoic turtles from Mongolia, Fossil Turtle Research, Vol. 1, Russ. J. Herpetol., 13 (Suppl.), 119–127, 2006.
Sukhanov, V. B., Danilov, I. G., and Syromyatnikova, E. V.: The description and phylogenetic position of a new nanhsiungchelyid turtle from the Late Cretaceous of Mongolia, Acta Palaeontol. Pol., 53, 601–614, 2008.
Syromyatnikova, E. V.: Turtles of the genus Ferganemys Nessov et Khosatzky, 1977 (Adocidae): shell morphology and phylogenetic position, Proc. Zool. Inst. RAS, 315, 38–52, 2011.
Syromyatnikova, E. V. and Danilov, I. G.: New material and a revision of the turtles of the genus Adocus (Adocidae) from the Late Cretaceous of Middle Asia and Kazakhstan, Proc. Zool. Inst. RAS, 313, 74–94, 2009.
Syromyatnikova, E. V. and Danilov, I. G.: New material and phylogenetic position of Adocus bostobensis, a poorly known adocid turtle from the Late Cretaceous of Kazakhstan, Proc. Zool. Inst. RAS, 317, 195–201, 2013.
Syromyatnikova, E. V., Danilov, I. G., and Sukhanov, V. B.: A redescription and phylogneetic position of Adocus planus, an adocid turtle from the Late Cretaceous of Mongolia, Proc. Zool. Inst. RAS, 316, 380–391, 2012.
Syromyatnikova, E. V., Danilov, I. G., and Sukhanov, V. B.: The skeletal morphology and phylogenetic position of Adocus amtgai, an adocid turtle from the Late Cretaceous of Mongolia, Cret. Res., 45, 155–173, https://doi.org/10.1016/j.cretres.2013.07.006, 2013.
Syromyatnikova, E. V., Scheyer, T. M., and Danilov, I. G.: Bone histology of adocusian turtles from Asia and North America, J. Vertebr. Paleontol., Program and Abstracts, 234, 2016.
Tong, H. and Mo, J.: Jiangxichelys, a new nanhsiungchelyid turtle from the Late Cretaceous of Ganzhou, Jiangxi Province, China, Geol. Mag., 147, 981–986, https://doi.org/10.1017/S0016756810000671, 2010.
Tong, H., Claude, J., Naksri, W., Sutheethorn, V., Buffetaut, E., Khansubha, S., Wongko, K., and Yuangdetkla, P.: Basilochelys macrobios n. gen. and n. sp., a large cryptodiran turtle from the Phu Kradung Formation (latest Jurassic-earliest Cretaceous) of the Khorat Plateau, NE Thailand, Geol. Soc. London Spec. Publ., 315, 153–173, https://doi.org/10.1144/SP315.12, 2009.
Tong, H., Xu, L., Buffetaut, E., Zhang, X., and Jia, S.: A new nanhsiungchelyid turtle from the Late Cretaceous of Neixiang, Henan Province, China, Ann. Paléontol., 98, 303–314, https://doi.org/10.1016/j.annpal.2012.08.001, 2012.
Tong, H., Li, L., and Ouyang, H.: A revision of Sinaspideretes wimani Young & Chow, 1953 (Testudines: Cryptodira: Trionychoidae) from the Jurassic of the Sichuan Basin, China, Geol. Mag., 151, 600–610, https://doi.org/10.1017/S0016756813000575, 2014.
Vlachos, E., Cerda, I., and Tsoukala, E.: The first record of a soft-shelled turtle (Testudines: Pan-Trionychidae) from southern Balkans (Pliocene, Gefira, N. Greece) and new information from bone histology, The Science of Nature, 102, https://doi.org/10.1007/s00114-015-1295-2, 2015.
Yeh, H.-K..: A new Cretaceous turtle of Nanhsiung, northern Kwangtung. Vertebr. PalAsiat., 10, 191–200, 1966.
Young, C. C. and Chow, M. C.: New fossil reptiles from Szechuan, China. Sci. Sin., 2, 216–243, 1953.
Short summary
We review shell bone microstructures of Adocidae and Nanhsiungchelyidae, two groups of extinct hide-necked turtles related to modern soft-shelled turtles (Trionychidae) and the pig-nosed turtle Carettochelys insculpta (Carettochelyidae). Adocids and nanhsiungchelyids both have a good fossil record in North America and Asia during the Cretaceous and Cenozoic. Our microstructural data supplement previously reported differences in external shell morphology between adocids and nanhsiungchelyids.
We review shell bone microstructures of Adocidae and Nanhsiungchelyidae, two groups of extinct...
