Zeacuminia
Genus of gastropods
From Wikipedia, the free encyclopedia
Zeacuminia is a genus of extinct sea snails, marine gastropod molluscs in the family Terebridae.[1] Fossils in the genus date to between the Middle Eocene and the Pliocene, and have been found in New Zealand, Argentina and Chile.
| Zeacuminia Temporal range: | |
|---|---|
| |
| Zeacuminia cantuariensis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Terebridae |
| Subfamily: | Terebrinae |
| Genus: | †Zeacuminia H. J. Finlay, 1930 |
| Type species | |
| † Zeacuminia tahuia H. J. Finlay, 1930 | |
Description
Members of the genus have relatively longer canals, squarish body whorls, more strongly developed axial ribs, and a strong ridge found on the fasciole.[2]
Taxonomy
Zeacuminia was first described in 1930 by H. J. Finlay.[2]
Distribution
Almost all known fossil species in the genus have been found in New Zealand and South America.[3][4] Fossils in New Zealand date to between the Bortonian stage of the Middle Eocene (42.6 million years ago) to the Waipipian stage of the Pliocene (3.70 million years ago),[3][5] while fossils in Argentina dating to between the Oligocene and the Miocene.[4] The species Z. costellata is found in the Navidad Formation of Chile, and dates to the Miocene.[6]
Species
Species within the genus Zeacuminia include:[1]
- † Zeacuminia biplex (F. W. Hutton, 1885)
- † Zeacuminia cantuariensis Laws, 1933
- † Zeacuminia costellata (G. B. Sowerby I, 1846)
- † Zeacuminia fluctuosa Laws, 1941
- † Zeacuminia murdochi A. W. B. Powell, 1931
- † Zeacuminia orycta (Suter, 1913)
- † Zeacuminia pareoraensis (Suter, 1917)
- † Zeacuminia parva Laws, 1936
- † Zeacuminia planitas Laws, 1940
- † Zeacuminia subtilissima (Bartrum & A. W. B. Powell, 1928)
- † Zeacuminia suteri (Marwick, 1929)
- † Zeacuminia tahuia H. J. Finlay, 1930
- † Zeacuminia tantula Marwick, 1931
- † Zeacuminia transitorsa (Marwick, 1929)
- † Zeacuminia turpicula Marwick, 1931
- † Zeacuminia viapollentia P. A. Maxwell, 1988