Ectoconus

Ectoconus (Greek: "outside" (ektos), "cone" (konos)[1]) is an extinct genus of terrestrial herbivorous mammal of the family Periptychidae, endemic to North America during the Early Paleocene subepochs (66—63.3 mya) existing for approximately 2.7 million years.[2]

Ectoconus
Temporal range: early Paleocene
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Family: †Periptychidae
Subfamily: †Periptychinae
Genus: †Ectoconus
Cope, 1884
Type species
†Ectoconus ditrigonus
Species
  • E. cavigellii Eberle and Lillegraven, 1998
  • E. ditrigonus (Cope, 1882) (syn. E. majusculus Matthew, 1937),
  • E. symbolus Gazin, 1939

Taxonomy
Restoration

Ectoconus was stoutly built, sheep-sized condylarth and had a small braincase, short, strong limbs and a heavy tail. Its feet had five hooved digits much in the manner of extremely primitive ungulates. It was named by Cope (1884) and was synonymized subjectively with Conoryctes by Cope (1885). It was assigned to Periptychidae by Cope (1884), Cope (1888), Osborn and Earle (1895), Matthew (1937) and Carroll (1988); and to Periptychinae by Archibald (1998) and Eberle (2003).

Nearly complete skeletons of Ectoconus have been found in New Mexico and it is one of the most completely known Paleocene mammals.

References
  1. "Glossary. American Museum of Natural History". Archived from the original on 20 November 2021.
  2. PaleoBiology Database: Bathygenys, basic info


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