Overview of Mesozoic crocodylomorphs from the Junggar Basin, Xinjiang, Northwest China, and description of isolated crocodyliform teeth from the Late Jurassic Liuhuanggou locality

Abstract

Lacustrine and fluvial Jurassic and Cretaceous

Knoetschkesuchus langenbergensis gen. nov. sp. nov., a new atoposaurid crocodyliform from the Upper Jurassic Langenberg Quarry (Lower Saxony, northwestern Germany), and its relationships to Theriosuchus

“…Most finds are concentrated to the Upper Jurassic and Lower Cretaceous of West-Central Europe, where Theriosuchus represents a typical member of mid- to late Mesozoic crocodyliform communities [ 79 ], but remains of Theriosuchus are also known from the Upper Cretaceous of West and East Europe [ 68 , 85 ]. Rare, and partially ambiguous reports of Theriosuchus are known from the Upper Jurassic and Lower Cretaceous of Eastern Asia [ 53 , 70 , 86 ], the Mid-Jurassic of Madagascar [ 87 ],and the Lower Cretaceous of North America [ 88 ]. A recent find of a dentary of Theriosuchus sp.…”

The first definitive Middle Jurassic atoposaurid (Crocodylomorpha, Neosuchia), and a discussion on the genus Theriosuchus

“…These include: atoposaurid teeth similar to those of Theriosuchus from the early Bathonian of southern France (Kriwet et al, 1997); a fragmentary atoposaurid tooth from the middle Bathonian of southern France (Knoll et al, 2013); indeterminate teeth and possible but not clearly diagnostic cranial and osteoderm remains from the Bathonian of Madagascar (Flynn et al, 2006); an indeterminate but Theriosuchus-like set of teeth from the Oxfordian of north-west China, assigned to Mesoeucrocodylia indet. (Wings et al, 2010); Theriosuchus-like teeth assigned to a dwarf mesosuchian from the Kimmeridgian of northern Germany (Thies & Broschinski, 2001); another specimen comprising the anterior part of crushed skeleton from the Kimmeridgian of northern Germany tentatively referred to Theriosuchus pusillus by Karl et al, 2006); and cf. Theriosuchus sp.…”

A Late Jurassic freshwater shark assemblage (Chondrichthyes, Hybodontiformes) from the southern Junggar Basin, Xinjiang, Northwest China

“…Here, fossil vertebrate remains were recovered from several layers within the Toutunhe and Qigu formations. The fauna includes elasmobranchs, actinopterygians, temnospondyls, turtles, crocodilians, mammals, and several isolated dinosaur teeth (Maisch and Matzke 2003;Maisch et al 2001Maisch et al , 2005Martin et al 2007Martin et al , 2010Pfretzschner et al 2005;Richter et al 2010, this issue;Wings et al 2007Wings et al , 2010). An approximately 80-m-thick portion of the section just below and above the boundary between the Toutunhe and Qigu formations yielded most of the vertebrate fossils.…”