Whitfieldella cylindrica
UNB-2018-0332Fossils » Eukaryote » Animalia » Brachiopoda » Rhynchonellata
Description
Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Athyridida
Family: Meristellidae
Genus: Whitfieldella (Hall and Clarke, 1893)
Species: Whitfieldella cylindrica (Hall, 1852)
Specimen with both the brachial and pedicle valves preserved. Both valves are slightly convex. Thin prominent growth lines. Defined sulcus (1.0 cm) and faint fold (0.6 cm). Brachial valve is weathered. Rounded, prominent beak. Rounded anterior margin and triangular posterior margin.
Smaller specimen has large, coarse ribs (0.25 cm). Prominent sulcus composed of two ribs (0.6 cm) and small, defined fold (0.2 cm). Rounded anterior margin and triangular posterior margin. Slight plication near the commissure.
Specifications
| Object name | Whitfieldella cylindrica |
|---|---|
| ID | UNB-2018-0332 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Early Silurian to Silurian Age: Llandovery |
| Numeric age | 443 Mya |
| Origin | Adams County, Ohio, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
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