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Extinct genus of single-celled organisms From Wikipedia, the free encyclopedia
Acarinina[1] is an extinct genus of foraminifera belonging to the family Truncorotaloididae of the superfamily Globorotalioidea and the suborder Globigerinina.[2] Its fossil range is from the upper Paleocene to the middle Eocene.[3] Its type species is Acarinina nitida.[2]
| Acarinina Temporal range: Early Paleocene - Bartonian | |
|---|---|
| |
| Acarinina echinata | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Phylum: | Retaria |
| Subphylum: | Foraminifera |
| Class: | Globothalamea |
| Order: | Rotaliida |
| Suborder: | Globigerinina |
| Superfamily: | Globorotalioidea |
| Family: | †Truncorotaloididae |
| Genus: | †Acarinina Subbotina, 1953 |
The test is subglobular, close coiled and low trochospiral. It has four to five rapidly enlarging chambers per whorl. It has a cosmopolitan distribution.[3]
Species in Acarinina include:[2]
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