Derbyia crassa
UNB-2018-0337Fossils » Eukaryote » Animalia » Brachiopoda » Strophomenata
Description
Kingdom: Animalia
Phylum: Brachiopoda
Class: Strophomenata
Order: Orthotetida
Family: Derbyiidae
Genus: Derbyia (Waagen, 1884)
Species: Derbyia crassa (Meek and Hayden, 1858)
Specimen with both the brachial and pedicle valves preserved. Flat valves. Thin costae (0.09 cm). Thin, defined rugae near the anterior margin. Faint grows lines. Small beak. Interarea is infilled with sediment. Faint delthyrium is visible. Rounded anterior margin and straight posterior margin.
Specifications
| Object name | Derbyia crassa |
|---|---|
| ID | UNB-2018-0337 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Brachiopoda Class: Strophomenata |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Carboniferous Subperiod: Pennsylvanian Epoch: Upper Pennsylvanian Age: Virgilian |
| Numeric age | 303 Mya |
| Origin | Stephens County, Texas, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
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Map of Origin
Publications
- F. B. Meek and F.V. Hayden. 1858. Remarks oon the Lower Cretaceous beds of Kansas and Nebraska, together with descriptions of some new species of Carboniferous fossils from the valley of Kansas River. Proceedings of the Academy of Natural Sciences, Philadelphia 1858:256-264
- W. Waagen. 1884. Productus Limestone Fossils, Part IV, fas. 3. Salt Range Fossils, Palaeontologia Indica, Series 13 1(4):547-610