Alopias grandis
Alopias grandis is a species of giant thresher shark from the Miocene. Estimates calculated from teeth comparisons suggest the living animal was comparable in size to the extant great white shark.[3] Remains generally consist of teeth, which have been found in the United States in the Calvert Formation of Virginia and Maryland,[4] and in Beaufort County, South Carolina.[3] They have also been found in the Miocene of Malta.[5] It is unlikely it possessed the elongated tail lobe of modern thresher sharks.[3] Some specimens in the Burdigalian show the beginnings of serrations, which are presumably transitional individuals between A. grandis and A. palatasi.[5]
| Alopias grandis | |
|---|---|
 | |
| Fossilized tooth | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | Lamniformes |
| Family: | Alopiidae |
| Genus: | Alopias |
| Species: | A. grandis |
| Binomial name | |
| Alopias grandis Leriche, 1942 | |
| Synonyms[2] | |
|
Alopecias grandis | |
Reconstruction of A. grandis (top), with megalodon (bottom) for comparison
References
- "†Alopecias grandis Leriche 1942 (mackerel shark)". The Paleobiology Database.
- "Alopecias grandis Leriche 1942 (mackerel shark)". PBDB.
- Ward, D. J.; Kent, B. W. (2015). "A new giant species of thresher shark from the Miocene of the United States". Natural History Museum. doi:10.13140/RG.2.1.1723.0969. Cite journal requires
|journal=(help) - "Nomini Cliffs, Zone 14-16 (Miocene of the United States)". PBDB.
- Godfrey, S. J. (Ed.). (2018). The Geology and Vertebrate Paleontology of Calvert Cliffs, Maryland, USA. Smithsonian Institution Scholarly Press.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.