Chirodipterus Explained

Chirodipterus is an extinct genus of marine lungfish which lived during the Devonian period.^[1] Fossils have been found worldwide, including Germany, China, eastern & western Australia, and the United States (Michigan). However, it has been suggested that the genus as currently defined is polyphyletic, in which case only the German type species (C. wildungensis) would belong to the genus.^{[2] [3]}

The following species are known:

• †'C.' australis Miles, 1977 - Frasnian of Western Australia (Gogo Formation)^[4]
• †'C.' liangchengi Song & Chang, 1991 - Late Devonian of Hunan, China
• †'C.' onawayensis Schultze, 1982 - Givetian of Michigan, USA (Traverse Group)^[5]
• †'C.' potteri Kemp, 2000 - Frasnian and Famennian of New South Wales, Australia^[6]
• †'C.' rhenanus Mors, 1991 - Givetian of the Rhenish Massif, Germany^[7]
• †C. wildungensis Gross, 1933 - Late Devonian of Wildungen, Germany

The former species C. paddyensis is now placed in the genus Gogodipterus.^[8] It has been suggested that the type species (C. wildungensis), is most closely related to Rhinodipterus, whereas 'C.' australis and 'C.' liangchengi are related to Pillararhynchus and Sorbitorhynchus.

External links

• Chirodipterus at The Digital Morphology library

Notes and References

1. Web site: PBDB Taxon . 2024-05-14 . paleobiodb.org.
2. Qiao . Tuo . Zhu . Min . 2009 . A new tooth-plated lungfish from the Middle Devonian of Yunnan, China, and its phylogenetic relationships . Acta Zoologica . en . 90 . s1 . 236–252 . 10.1111/j.1463-6395.2008.00381.x . 0001-7272.
3. Henderson . Struan A. C. . Challands . Tom J. . 2018-07-06 . The cranial endocast of the Upper Devonian dipnoan 'Chirodipterus' australis . PeerJ . en . 6 . e5148 . 10.7717/peerj.5148 . free . 30002977 . 6037139 . 2167-8359.
4. Miles . R. S. . 1977 . Dipnoan (lungfish) skulls and the relationships of the group: a study based on new species from the Devonian of Australia . Zoological Journal of the Linnean Society . 61 . 1–3 . 1–328 . 10.1111/j.1096-3642.1977.tb01031.x . 0024-4082.
5. Schultze . Hans-Peter . 1982 . A dipterid dipnoan from the Middle Devonian of Michigan, U.S.A. . Journal of Vertebrate Paleontology . en . 2 . 2 . 155–162 . 10.1080/02724634.1982.10011926 . 1982JVPal...2..155S . 0272-4634.
6. Kemp . Anne . 2001-01-19 . Chirodipterus potteri, a new Devonian lungfish from New South Wales, Australia: and the ontogeny of chirodipterid tooth plates . Journal of Vertebrate Paleontology . en . 20 . 4 . 665–674 . 10.1671/0272-4634(2000)020[0665:CPANDL]2.0.CO;2 . 0272-4634.
7. Mörs . Thomas . 1991-12-16 . Eine ungewöhnlich große Lungenfisch-Zahnplatte (Dipnoi, Chirodipteridae) aus dem Mitteldevon des rechtsrheinischen Schiefergebirges (Bergisches Land, Deutschland) . Neues Jahrbuch für Geologie und Paläontologie - Monatshefte . en . 654–662 . 10.1127/njgpm/1991/1991/654.
8. Long . John A. . 1992 . Gogodipterus paddyensis (Miles), gen. nov., a new chirodipterid lungfish from the late Devonian Gogo formation, Western Australia . The Beagle: Occasional Papers of the Northern Territory Museum of Arts and Sciences . 9 . 11–20.