A Late Jurassic freshwater fish (Ginglymodi, Lepisosteiformes) from Qijiang, Chongqing, China

ABSTRACT

A new ginglymodian fish Beiduyu qijiangensis, gen. et sp. nov., is described from the freshwater Upper Jurassic Suining Formation of Chongqing, China. Although the fish is not completely preserved, it is most similar to Lepidotes and Scheenstia, which were once considered to be members of the Semionotiformes but are currently considered to be basal members of the Lepisosteiformes. The new fish lacks the strong dorsal ridge scales found in the Semionotiformes but has other features such as ganoid scales with anterodorsal and anteroventral processes but a reduced dorsal peg found in these basal lepisosteiform genera. With the description of this new taxon, there are three distinct ginglymodian fishes now known from southern China, all of them from Sichuan Province.

http://zoobank.org/urn:lsid:zoobank.org:pub:7689B0E8-BEFB-4202-B1B4-118E5A1EDEDF

View correction statement:

Correct size of the Late Jurassic freshwater fish, Beiduyu qijiangensis (Ginglymodi, Lepisosteiformes) from Qijiang, Chongqing, China

ACKNOWLEDGMENTS

The authors thank the directors, collections managers, and curators at the Qijiang National Geological Park Museum and Institute of Vertebrate Paleontology and Paleoanthropology (China), in particular F.-X. Wu and B.-H. Geng at IVPP, for their hospitality and access to specimens in their care. The manuscript was much improved with helpful comments from A. López-Arbarello and an anonymous reviewer, and associate editor C. Underwood.

Handling editor: Charlie Underwood.