Holaster simplex
UNB-2019-0482Fossils » Eukaryote » Animalia » Echinodermata » Echinozoa » Echinoidea » Euechinoidea
Description
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Subclass: Euechinoidea
Order: Holasteroida
Family: Holasteridae
Genus: Holaster (Agassiz, 1836)
Species: Holaster simplex (Shumard, 1853)
Two large heart-shaped specimens with prominent anterior grooves. Ambulacra are visible on one specimen but faintly seen on the other specimen. Ambulacral pores are visible and the specimen with defined ambulacra has a small periproct on the aboral surface.
Specifications
| Object name | Holaster simplex |
|---|---|
| ID | UNB-2019-0482 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Subclass: Euechinoidea |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Mesozoic Period: Cretaceous Subperiod: Comanchean |
| Numeric age | 127 Mya |
| Origin | Kingston, Oklahoma, U.S.A. |
| Pieces | 2 |
| Partial | No |
| Measurements |
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