Metacheiromyidae ("next to ''Cheiromys''") is an
extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...
family of
myrmecophagous placental mammals within extinct order
Palaeanodonta
Palaeanodonta ("ancient toothless animals") is an extinct clade of stem-pangolins. They were insectivorous (Myrmecophagy, myrmecophagous), possibly fossorial, and lived from the middle Paleocene to early Oligocene in North America, Europe and Asi ...
, that lived in North America and Europe from the late
Paleocene
The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ...
to middle
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...
.
[R. M. Schoch (1984.]
"Revision of ''Metacheiromys'' (Wortman, 1903) and a review of the Palaeanodonta."
Postilla 192:1-28
Classification and phylogeny
Taxonomy
* Family: †Metacheiromyidae
(paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...
family) (Pilgrim, 1932)
** Genus: †''
Brachianodon''
(Gunnell & Gingerich, 1993)
*** †''Brachianodon westorum''
(Gunnell & Gingerich, 1993)
** Genus: †''
Mylanodon''
(Secord, 2002)
*** †''Mylanodon rosei''
(Secord, 2002)
** Subfamily: †
Metacheiromyinae (paraphyletic subfamily) (Wortman, 1903)
*** Genus: †''
Metacheiromys''
(Wortman, 1903)
**** †''Metacheiromys dasypus''
(Osborn, 1904)
**** †''Metacheiromys marshi''
(Wortman, 1903)
*** Genus: †''
Palaeanodon''
(Matthew, 1918)
**** †''Palaeanodon ignavus''
(Matthew, 1918)
**** †''Palaeanodon nievelti''
(Gingerich, 1989)
**** †''Palaeanodon parvulus''
(Matthew, 1918)
**** †''Palaeanodon'' sp.
e Quesnoy(Gheerbrant, 2005)
** Subfamily: †
Propalaeanodontinae
(Schoch, 1984)
*** Genus: †''
Propalaeanodon''
(Rose, 1979)
**** †''Palaeanodon parvulus''
(Rose, 1979)
Phylogenetic tree
The phylogenetic relationships of family Metacheiromyidae are shown in the following cladogram:
[K. D. Rose, L. Krishtalka and R. K. Stucky (1991.]
"Revision of the Wind River faunas, early Eocene of central Wyoming. Part 11. Palaeanodonta (Mammalia)."
Annals of Carnegie Museum 60(1):63-82[Rose, K. D. (2008.]
"Palaeanodonta and Pholidota"
pp. 135–146 in C. M. Janis, G. F. Gunnell, and M. Uhen (eds.), "Evolution of Tertiary Mammals of North America. Volume 2: Small Mammals, Xenarthrans, and Marine Mammals." Cambridge University Press, Cambridge, U.K.
See also
*
Mammal classification
Mammalia is a class of animal within the phylum Chordata. Mammal classification has been through several iterations since Carl Linnaeus initially defined the class. No classification system is universally accepted; McKenna & Bell (1997) and Wils ...
*
Palaeanodonta
Palaeanodonta ("ancient toothless animals") is an extinct clade of stem-pangolins. They were insectivorous (Myrmecophagy, myrmecophagous), possibly fossorial, and lived from the middle Paleocene to early Oligocene in North America, Europe and Asi ...
References
{{Taxonbar, from=Q11936634
Palaeanodonta
Prehistoric mammals of Europe
Prehistoric mammals of North America
Myrmecophagous mammals
Prehistoric mammal families