A New Gobiosuchid Crocodyliform Taxon from the Cretaceous of Mongolia

This dataset contains the digitized treatments in Plazi based on the original journal article POL, DIEGO, NORELL, MARK A. (2004): A New Gobiosuchid Crocodyliform Taxon from the Cretaceous of Mongolia. American Museum Novitates 3458: 1-32, DOI: 10.1206/0003-0082(2004)458<0001:ANGCTF>2.0.CO;2, URL: bioone.org/doi/abs/10.1206/0003-0082%282004%29458%3C0001%3AANGCTF%3E2.0.CO%3B2 ABSTRACT We describe a new fossil crocodyliform, Zaraasuchus shepardi, found in the Cretaceous Red Beds of Zos Canyon (Gobi Desert, Mongolia).

Z. shepardi shares numerous derived characters with Gobiosuchus kielanae, also known from the Late Cretaceous of Mongolia (Bayn Dzak locality). However, it is distinguished from the latter by the presence of a moderately large infratemporal fenestra, anterior margin of infratemporal fenestra almost completely formed by the postorbital, retroarticular process with a well­developed ornamented posterolateral pointed process, and extremely well­developed keels on dorsal and lateral cervical osteoderms (the heights of which are approximately as long as the lateromedial extension of the dorsal osteoderms).