Beishanichthys Explained

Beishanichthys is an extinct genus of freshwater ray-finned fish which existed in Gansu Province, China during the Olenekian age of the early Triassic period. It contains a single species, B. brevicaudalis, first named by Guang-Hui Xu, Ke-Qin Gao in 2011 based on fossils from the Lower Triassic lake deposits exposed in Beishan area.[1] [2] It is considered a scanilepiform, a group of early cladistians related to the modern bichirs, although Beishanichthys was not incorporated into the analyses that found this phylogenetic placement among the cladistians.[3]

Notes and References

  1. Web site: PBDB . 2024-03-06 . paleobiodb.org.
  2. Guang-Hui Xu, Ke-Qin Gao . 2011 . A new scanilepiform from the Lower Triassic of northern Gansu Province, China, and phylogenetic relationships of non-teleostean Actinopterygii . Zoological Journal of the Linnean Society . 161 . 3 . 595–612 . 10.1111/j.1096-3642.2010.00645.x . free .
  3. Giles . Sam . Xu . Guang-Hui . Near . Thomas J. . Friedman . Matt . 2017 . Early members of ‘living fossil’ lineage imply later origin of modern ray-finned fishes . Nature . en . 549 . 7671 . 265–268 . 10.1038/nature23654 . 1476-4687.

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