However, as it was not adequately described it is considered a nomen nudum. Birkamys B. korai Lower Sequence Quarry L-41 Cranial and mandibular remains with...

porcupines, all the forms mentioned are mostly extinct lineages. However, Birkamys and Mubhammys could belong in the evolutionary lineage of reed rats, as...

Neogene  China A muroid rodent belonging to the family Tachyoryctoididae. Birkamys Gen. et sp. nov Valid Sallam & Seiffert Eocene (late Priabonian) Jebel...