The xenacanth shark neurocranium, with comments on elasmobranch monophyly. Bulletin of the AMNH ; v. 169, article 1
| dc.contributor.author | Schaeffer, Bobb, 1913- | en_US |
| dc.date.accessioned | 2005-10-06T14:49:34Z | |
| dc.date.available | 2005-10-06T14:49:34Z | |
| dc.date.issued | 1981 | en_US |
| dc.description | 66 p. : ill. ; 26 cm. | en_US |
| dc.description | Includes bibliographical references (p. 62-66). | en_US |
| dc.description.abstract | "The neurocranium of the shark Xenacanthus (sensu lato) from the early Permian of Texas shares derived characters with the neurocrania of various other Paleozoic shark genera, including Tamiobatis, 'Cladodus,' 'Ctenacanthus,' Cladoselache, and with Hybodus and the living neoselachians. These characters are consistent with the hypothesis that the above extinct and the living taxa belong to the monophyletic group Elasmobranchii. Xenacanthus and Tamiobatis are proposed as sister taxa related to 'Cladodus' and possibly to 'Ctenacanthus' from the Cleveland shale. The details of Xenacanthus and Tamiobatis cranial morphology are based on three-dimensional specimens, both whole and sectioned'--P. [4]. | en_US |
| dc.format.extent | 19755401 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/2246/1056 | |
| dc.language | eng | en_US |
| dc.language.iso | en_US | |
| dc.publisher | New York : American Museum of Natural History | en_US |
| dc.relation.ispartofseries | Bulletin of the American Museum of Natural History ; v. 169, article 1 | en_US |
| dc.subject.lcc | QH1 .A4 vol.169, art.1, 1981 | en_US |
| dc.subject.lcsh | Xenacanthus -- Anatomy. | en_US |
| dc.subject.lcsh | Tamiobatis -- Anatomy. | en_US |
| dc.subject.lcsh | Skull. | en_US |
| dc.subject.lcsh | Sharks, Fossil -- Texas. | en_US |
| dc.subject.lcsh | Fishes, Fossil -- Texas. | en_US |
| dc.subject.lcsh | Chondrichthyes -- Classification. | en_US |
| dc.subject.lcsh | Paleontology -- Permian -- Texas. | en_US |
| dc.subject.lcsh | Paleontology -- Texas. | en_US |
| dc.title | The xenacanth shark neurocranium, with comments on elasmobranch monophyly. Bulletin of the AMNH ; v. 169, article 1 | en_US |
| dc.type | text | en_US |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- /v2/dspace/ingest/pdfSource/bul/B169a01.pdf
- Size:
- 18.84 MB
- Format:
- Adobe Portable Document Format
- Description: