Astartella concentrica
UNB-2018-0696Fossils » Eukaryote » Animalia » Mollusca » Bivalvia
Description
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Autobranchia
Order: Carditida
Family: Astartidae
Genus: Astartella (Hall, 1858)
Species: Astartella concentrica (Conrad, 1842)
Specimen with both the right and left valves preserved. Prominent growth lines. Visible posterior ridge. Lunule and hinge ligament are visible. Small, triangular umbo. Rounded, elongated ventral margin and rounded/triangular dorsal margin.
Specifications
| Object name | Astartella concentrica |
|---|---|
| ID | UNB-2018-0696 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Mollusca Class: Bivalvia |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Carboniferous Subperiod: Pennsylvanian Epoch: Upper Pennsylvanian Age: Virgilian |
| Numeric age | 303 Mya |
| Origin | Coleman County, Texas, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
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Map of Origin
Publications
- T. A. Conrad. 1842. Observations on the Silurian and Devonian systems of the United States, with descriptions of new organic remains. Journal of the Academy of Natural Sciences of Philadelphia 8(2):228-280
- J. Hall. 1858. Palaeontology of Iowa. Report of the Geological Survey of the state of Iowa 1(2):473-724