Descriptions of fishes from the cretaceous and tertiary deposits west of the Mississippi River
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Abstract
This, with the genus following, introduces for the first time into the North American extinct fauna the family of the Dercetiform fishes. The relationship of the family has been discussed by various authors, especially by Pictet and Von der Marek. The former regards them as Teleostei; the latter as "Ganoids". As I do not adopt the division signified by the last name, I find Professor Pictet's view nearer to the point. The specimens indicate further that the Dercetidae belong to the Actinopteri, and probably to the order Hemibranchii. The only alternative is the order Isospondyli, and the characters which separate the two are not clearly shown in the specimens. Distinct bones below the pectoral fins may be interclavicles, which belong to the Hemibranchii.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Unnumbered Series |
| Title | Descriptions of fishes from the cretaceous and tertiary deposits west of the Mississippi River |
| DOI | 10.3133/70159089 |
| Volume | IV |
| Issue | 1 |
| Year Published | 1878 |
| Language | English |
| Publisher | Government Printing Office |
| Publisher location | Washington, D.C. |
| Contributing office(s) | U.S. Geological and Geographical Survey of the Territories |
| Description | 11 p. |
| Larger Work Title | The Bulletin of the Survey |
| First page | 67 |
| Last page | 77 |
| Country | United States |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |