Ectoganus

Ectoganus is an extinct genus of taeniodonts from tribe Ectoganini within subfamily Stylinodontinae and family Stylinodontidae, that lived in North America from the Late Paleocene to Early Eocene.

Description

The schmelzmuster of Ectoganus teeth has one layer, while its Hunter-Schreger bands in its tooth enamel are poorly developed. Its enamel prisms are characterised by a keyhole pattern and an incomplete prism sheath. The dentine of Ectoganus follows the regular pattern of mammals. A thick layer of cementum covers the anterior and posterior walls of the teeth.

Phylogeny