Tetragramma donaldtrumpi

Tetragramma donaldtrumpi is a species of fossil sea urchins discovered and identified by William R. Thompson Jr. in 2016.^[1] The specimen locality is from the Lower Cretaceous, Trinity Group, of the Glen Rose Formation near Fischer, Texas, in the United States.^[1][2]

Tetragramma donaldtrumpi
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	†Phymosomatoida
Family:	†Diplopodiidae
Genus:	†Tetragramma
Species:	†T. donaldtrumpi
Binomial name
†Tetragramma donaldtrumpi Thompson, 2016

Based from the fossils discovered of Tetragramma donaldtrumpi, the species is known to have been about 1 inch (2.5 cm) in size and round in shape, with the appearance of a Life Savers candy.^[3] The genus Tetragramma is known from the Upper Jurassic (Oxfordian) to the Upper Cretaceous (Turonian).^[4]

Thompson named the species to honor then Republican presidential nominee Donald Trump.^[5] A paleontology lab at the University of Texas at Austin holds a fossil of the species, along with 45 other species.^[3]