Decennatherium Temporal range: Late Miocene (Tortonian) 11.6–7.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Skull of the male D. rex holotype specimen
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	Giraffidae
Genus:	†Decennatherium Crusafont, 1952
Species
Decennatherium pachecoi Crusafont, 1952 Decennatherium rex Ríos, Sánchez & Morales, 2017

Decennatherium is an extinct genus of giraffids. It was first named by Crusafont Pairo in 1952. It was only found at the Macrofauna, Los Valles de Fuentidueña fossil site in Segovia, Spain.^[1]