Tetragramma
Extinct genus of sea urchins
From Wikipedia, the free encyclopedia
Tetragramma is a genus of fossil sea urchins known from the Upper Jurassic (Oxfordian) to the Upper Cretaceous (Turonian).[2]
| Tetragramma Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | †Phymosomatoida |
| Family: | †Diplopodiidae |
| Genus: | †Tetragramma L. Agassiz, 1838 |
| Type species | |
| Tetragramma variolare (Brongniart, 1822) | |
| Synonyms[1] | |
| |
Species
Species include:[3]
- Tetragramma antsingyensis Lambert, 1936
- Tetragramma basabensis Vaziri & Arab, 2013[4]
- Tetragramma besairiei Lambert, 1933
- Tetragramma bosei Jones, 1938
- Tetragramma cornueli Corroy, 1925
- Tetragramma depressum Vaziri & Arab, 2013[4]
- Tetragramma donaldtrumpi Thompson, 2016[5]
- Tetragramma giganteum Lambert, 1935
- Tetragramma hourcqi Collignon, 1950
- Tetragramma pomeraniae Kongiel, 1957
- Tetragramma tafermense Lambert, 1931
- Tetragramma tetratuberculatus Vaziri & Arab, 2013[4]
- Tetragramma variolare (Brongniart, 1822)
