Tetragramma donaldtrumpi

== Translingual == === Etymology === Tetragramma + donaldtrumpi, from being a species of fossil Tetragramma sea urchin named in honor of Donald Trump (US President) === Proper noun === Tetragramma donaldtrumpi n. sp. Thompson 2016 (rare) A taxonomic species within the family Pseudodiadematidae – a fossil echinoid (sea urchin) of Texas. === References === Pseudodiadematidae on Wikipedia.Wikipedia (family) Euechinoidea on Wikispecies.Wikispecies (subclass) Category:Carinacea on Wikimedia Commons.Wikimedia Commons (infraclass) “Tetragramma”, in Paleobiology Database, 2026 William R. Thompson, Jr. (2016), Fossil Echinoids of Texas: A Monograph of Fossil Sea Urchins, William R. Thompson, Jr., →OCLC