(Three pointed tooth).
Named By: R. A. Thulborn - 1975.
Synonyms: Trimurodon cuneatus.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia.
Species: T. cuneatus (type).
Size: Unknown due to lack of remains.
Known locations: Portugal - Camadas de Alcobaça Formation/Alcobaça Formation.
Time period: Oxfordian of the Jurassic.
Fossil representation: Teeth.
Originally uncovered during the 1960s, the holotype teeth of Trimucrodon were originally thought to be from a small mammal. In 1973 however Richard Thulborn recognised that the teeth were actually from a small dinosaur, though his paper describing them and naming the genus did not actually get formally published until 1975. Today Trimucrodon exists as a tooth taxon, as well as a dubious genus given that the teeth of Trimucrodon are fairly unremarkable when compared to other dinosaurs. All that can be said about Trimucrodon is that the teeth would have come from a small ornithischian dinosaur, and would therefore likely be a plant eater.
- Teeth of ornithischian dinosaurs from the Upper Jurassic of Portugal, with description of a hypsilophodontid (Phyllodon henkeli gen. et sp. nov.) from the Guimarota lignite. Contribuição para o conhecimento da Fauna do Kimerridgiano da Mina de Lignito Guimarota (Leiria, Portugal). - Serviços Geológicos de Portugal, Memória (Nova Série) 22:89-134. - R. A. Thulborn - 1975.