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| Lungfishes, tetrapods, paleontology, and plesiomorphy. Bulletin of the AMNH ; v. 167, article 4 |
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| Title: | Lungfishes, tetrapods, paleontology, and plesiomorphy. Bulletin of the AMNH ; v. 167, article 4 |
| Other Titles: | Lungfishes and tetrapods |
| Authors: | Rosen, Donn Eric, 1929- Forey, Peter L. Gardiner, Brian G. Patterson, Colin. |
| Issue Date: | 1981 |
| Publisher: | New York : American Museum of Natural History |
| Series/Report no.: | Bulletin of the American Museum of Natural History ; v. 167, article 4 |
| Abstract: | "We conclude that the internal (excurrent) nostril of Recent lungfishes is a true choana, as judged by its comparison with (1) the internal nostril of a Devonian lungfish species which opens through the bony palate internal to an arcade of maxillary and premaxillary teeth; (2) the choana of the Devonian ichthyostegid amphibians, and (3) nostril development in Recent urodeles. The idea that lungfishes might therefore be the sister group of tetrapods is compared with the competing, deeply entrenched theory that rhipidistian fishes and eusthenopterids in particular include the ancestor of tetrapods. Our own theory, derived from study of Recent and fossil material, and an analysis of literature spanning 140 years, is framed in the context of a classification of the main groups of fossil and living gnathostomes: acanthodians, chondrichthyans, cladistians, actinopterygians, rhipidistians, actinistians, dipnoans, and tetrapods. In formulating our proposal we have reviewed the anatomy of the n... |
| Description: | p. 163-275 : ill. ; 26 cm. Includes bibliographical references (p. 264-275). |
| URI: | http://hdl.handle.net/2246/1054 |
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