Derbyia crassa
UNB-2018-0293Fossils » 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 pedicle and brachial valves preserved. Thin ribs (0.05 cm) and prominent growth lines/rugae. Brachial valve is quite convex and pedicle valve is slightly convex. Prominent hinge line and delthyrium. Rounded/square anterior margin and rounded posterior margin.
Specifications
| Object name | Derbyia crassa |
|---|---|
| ID | UNB-2018-0293 |
| 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