Holotheria are a diverse group of mammals that are descendants of the last common ancestor of Kuehneotherium and Theria (the group that includes marsupials and placental mammals).[2]

Temporal range: Late Triassic - Holocene, 220–0 Ma
Kangaroo and joey03.jpg
Kangaroo with her joey
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Clade: Theriiformes
Clade: Holotheria
Wible et al., 1995


According to McKenna/Bell (1997):[1]

According to Wang, Clemens, Hu & Li, 1998[3]


  1. ^ a b c Mckenna. "Holotheria". Mikko's Phylogenetical Archive. Retrieved 19 July 2013.
  2. ^ Wible, J. R., Rougier, G. W., Novacek, M. J. & McKenna, M. C. (2001). "Earliest eutherian ear region: A petrosal referred to Prokennalestes from the Early Cretaceous of Mongolia." American Museum Novitates, 3322.
  3. ^ Wang; Clemens; Hu & Li. "Holotheria". Mikko's Phylogenetical Archive. Retrieved 19 July 2013.