10.5061/DRYAD.508G5
López-Conde, Oliver Ariel
National Autonomous University of Mexico
Sterli, Juliana
National Autonomous University of Mexico
Alvarado-Ortega, Jesús
National Autonomous University of Mexico
Chavarría-Arellano, María Luisa
National Autonomous University of Mexico
Data from: A new platychelyid turtle (Pan-Pleurodira) from the Late
Jurassic (Kimmeridgian) of Oaxaca, México
Dryad
dataset
2017
Notoemys
Sabinal Formation
Kimmeridgian
Platychelyidae
Notoemys tlaxiacoensis
Late Jurassic
Pan-Pleurodira
2017-10-17T00:00:00Z
2017-10-17T00:00:00Z
en
https://doi.org/10.1002/spp2.1069
2982939 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Until recently, the record of Mesozoic turtles in Mexico has been
restricted to the Cretaceous. New discoveries in the Sabinal Formation
(Tlaxiaco, Oaxaca) have extended the record into the Kimmeridgian (Late
Jurassic). The Sabinal Formation is part of the Tlaxiaco Basin, which was
a depocenter of continental and marine sediments dominated by
transgressive-regressive marine conditions during the Jurassic–Cretaceous.
The new turtle described here consists of an almost complete carapace
associated with a plastron. Based on the unique combination of characters,
this turtle is identified as a new species of Platychelyidae here named
Notoemys tlaxiacoensis. Platychelyid characters in this specimen include
the presence of the sulcus between vertebral 3 and 4 located on neural 6,
the presence of a central plastral fontanelle, and a pair of reduced
mesoplastra. The occurrence of Kimmeridgian platychelyids in Mexico
confirms that the Hispanic Corridor acted as a connection between Tethyan
and Palaeopacific faunas.
Data from phylogenetic analysisAppendix.zip
Oaxaca
Tlaxiaco
México