Qingmenodus

Qingmenodus
Temporal range: Early Devonian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Order: †Onychodontiformes
Genus: †Qingmenodus
Lu & Zhu, 2010
Type species
†Qingmenodus yui
Lu & Zhu, 2010

Qingmenodus is a genus of prehistoric lobe-finned fish. Fossils of Qingmenodus were found in China and date back to the Early Devonian period. Qingmenodus reveals the first well-ossified otoccipital braincase in onychodonts. Palaeontologists believe that Qingmenodus was one of the oldest onychodont fish.[1]

(A) Anterior cranial portion (IVPP V16003.5) in ventral view. (B) Posterior cranial portion (IVPP V16003.6) in ventral view. (C) Anterior cranial portion (IVPP V16003.5) in right lateral view. (D) Tentative restoration of the natural shape of the neurocranium in right lateral view. (E) Life restoration by Brian Choo. This figure appeared in Lu et al. (2016) Science Advances, vol. 2, no. 6, e1600154.

Relationships

A study of additional new fossils of Qingmenodus in a larger phylogenetic analysis of Sarcopterygii including new neurocranial characters supported placing onychodontiforms as stem-coelacanths, within Actinistia.[2]

References

  1. ^ Lu, Jing; Zhu, Min (2010). "An onychodont fish (Osteichthyes, Sarcopterygii) from the Early Devonian of China, and the evolution of the Onychodontiformes". Proceedings of the Royal Society B. 277 (1679): 293–299. doi:10.1098/rspb.2009.0708. PMC 2842670. PMID 19515665.
  2. ^ Lu, J., et al. 2016. A Devonian predatory fish provides insights into the early evolution of modern sarcopterygians. Science Advances, vol. 2, no. 6, e1600154, doi:10.1126/sciadv.1600154


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