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[dinosaur] Globochelus, new turtle from Jurassic of France + Protodraco, new agamid lizard in amber from Cretaceous of Myanmar




Ben Creisler
bcreisler@gmail.com

New Mesozoic reptile papers:


Globochelus lennieri gen. et sp. nov.
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Francede Lapparent de Broin, GÃrard Breton & Michel Rioult (2021)
Les tortues du MÃsozoÃque du Havre (France), rÃvisions, dÃfinition de Globochelus lennieri n. g. n. sp. et nouvelles donnÃes sur Tropidemys langii, Plesiochelyidae.
Mesozoic turtles from Le Havre (France), review, definition of Globochelus lennieri n. g. n. sp. and new data on Tropidemys langii, Plesiochelyidae.
Annales de PalÃontologie 107(1): 102447 (in French)
doi: https://doi.org/10.1016/j.annpal.2020.102447
https://www.sciencedirect.com/science/article/abs/pii/S0753396920300707



The collection of MesozoÃc turtles conserved in the Museum of Le Havre is revised, being enhanced after the destruction which occurred during the World War II. The new purchases, including two new Jurassic (Lower Kimmeridgian) taxa of the family Plesiochelyidae, from the Cap de la HÃve and BlÃville respectively, are compared to the previously described turtle and now destroyed remains of the Le Havre area. On the one hand, Globochelus lennieri n. g., n. sp., from the basal Kimmeridgian Baylei biozone is the oldest plesiochelyid species named from the Upper Jurassic, that we dedicate to Lennier, in tribute to his works about geology and fossils from Le Havre. On the other hand, Tropidemys langii, from the Cymodoce biozone, is a form from the European Kimmeridgian whose presence in the Normandy region was doubted. The stratigraphic series of Le Havre, from Lennier and recent works, the sedimentology of the fossiliferous layers and the petrography of the calcareous matrix are examined, showing a littoral platform environment. The Le Havre fossil turtle record including destroyed species is reconsidered: notably the Lower Kimmeridgian plesiochelyid Plesiochelys dollfusii (Lennier), this species being clearly distinctive in the genus, and the early Cretaceous  Palaeochelys  novemcostatus Valenciennes, attibuted to a pre-employed genus but which is here confirmed as a Chelonioidea as, perhaps, âPelobatochelys sp?â. The morphology of the shell of each plesiochelyid genus is compared. Some species previously attributed to Thalassemys are integrated in plesiochelyid genera.


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Protodraco monocoli gen. et sp. nov.

Philipp Wagner, Edward L. Stanley, Juan D. Daza & Aaron M. Bauer (2021)
A new agamid lizard in mid-Cretaceous amber from northern Myanmar.
Cretaceous Research 104813 (advance online publication)
doi: https://doi.org/10.1016/j.cretres.2021.104813
https://www.sciencedirect.com/science/article/abs/pii/S0195667121000604



The first amber-embedded fossil representing the lizard family Agamidae, Protodraco monocoli gen. et sp. nov., is described in burmite of the lowermost Cenomanian (ca. 99 Ma; mid-Cretaceous) from northern Myanmar. It is among both the oldest known amber lizards and the oldest fossils of the family. The fossil is a well preserved left hind foot with shank, morphologically similar to basal taxa of modern Southeast Asian agamids. Because of the sparse Cretaceous fossil record it could provide a calibration point for divergence-time analyses and contradicts views that agamids colonized SE Asia during the Paleogene.



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