Composita argentea
UNB-2018-0314Fossils » Eukaryote » Animalia » Brachiopoda » Rhynchonellata
Description
Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Athyridida
Family: Athyrididae
Genus: Composita (Brown, 1849)
Species: Composita argentea (Shepard, 1838)
Specimen with both the brachial and pedicle valves preserved. No visible ribs but faint growth lines. Plication is prominent near the commissure. Faint sulcus (1.5 cm) and fold (1.4 cm). Prominent beak and pedicle foramen. Rounded anterior margin and rounded/triangular posterior margin.
Specifications
| Object name | Composita argentea |
|---|---|
| ID | UNB-2018-0314 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Carboniferous Subperiod: Pennsylvanian |
| Numeric age | 323.2 Mya |
| Origin | Wichita, Kansas, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
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