Tetragramma is a genus of fossil sea urchins known from the Upper Jurassic (Oxfordian) to the Upper Cretaceous (Turonian).
Species
Species include:
- Tetragramma antsingyensis <small>Lambert, 1936</small>
- Tetragramma basabensis <small>Vaziri & Arab, 2013</small>
- Tetragramma besairiei <small>Lambert, 1933</small>
- Tetragramma bosei <small>Jones, 1938</small>
- Tetragramma cornueli <small>Corroy, 1925</small>
- Tetragramma depressum <small>Vaziri & Arab, 2013</small>
- Tetragramma donaldtrumpi <small>Thompson, 2016</small>
- Tetragramma giganteum <small>Lambert, 1935</small>
- Tetragramma hourcqi <small>Collignon, 1950</small>
- Tetragramma pomeraniae <small>Kongiel, 1957</small>
- Tetragramma tafermense <small>Lambert, 1931</small>
- Tetragramma tetratuberculatus <small>Vaziri & Arab, 2013</small>
- Tetragramma variolare <small>(Brongniart, 1822)</small>
References