Osteology and Systematics of the Fossil Catfishes (Genus Ictalurus) of Central Mexico
An extinct ictalurid catfish, Ictalurus spodius n. sp., is described from the Pleistocene of Central Mexico. It shares derived osteological characters with the subgenus Ictalurus and the I. punctatus species group. The new species is known from middle Pleistocene fluvial and lacustrine sediments and...
| Veröffentlicht in: | Journal of Paleontology. - SEPM Society for Sedimentary Geology. - 61(1987), 2, Seite 380-387 |
|---|---|
| 1. Verfasser: | |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1987
|
| Zugriff auf das übergeordnete Werk: | Journal of Paleontology |
| Schlagworte: | Biological sciences Business Behavioral sciences Physical sciences |
| Zusammenfassung: | An extinct ictalurid catfish, Ictalurus spodius n. sp., is described from the Pleistocene of Central Mexico. It shares derived osteological characters with the subgenus Ictalurus and the I. punctatus species group. The new species is known from middle Pleistocene fluvial and lacustrine sediments and was abundant until near the end of the Pleistocene when it was replaced by a closely related species, I. dugesi. The latter is known from late and post-Pleistocene lake-bottom deposits and is widespread in Central Mexico today. |
|---|---|
| ISSN: | 19372337 |