Achaenodon is an extinct artiodactyl mammal, possibly belonging to the family Helohyidae. It lived in the mid-late Eocene (about 43-39 million years ago)...

Cetancodontamorpha Spaulding et al., 2009 Subgroups †Siamotherium †Erlianhyus †Wutuhyus †Achaenodon †Andrewsarchus †Proentelodon †Entelodontidae Whippomorpha...

elongated (e.g. in Helohyus), but in some forms ascribed to this family (Achaenodon), it was very short. Compared to other primitive artiodactyls such as...

define the Uintan North American Land Mammal Age. The index taxa include: Achaenodon, Amynodon, Diplacodon, Eobasileus, Leptotragulus, Oxyaenodon, Oromeryx...

Genus Species Location Stratigraphic position Material Images Achaenodon A. insolens Wyoming AMNH 5143, fragmentary mandible A. robustus Wyoming PU 10033...

respectively. Colbert compared B. wyomingensis to Helohyus, Chaeropotamus, Achaenodon, and Parahyus based on tooth shape. No mandibles were preserved with the...

†Acer aequidentatum †Acer scottiae Acesta †Acesta multiradiata †Achaenodon †Achaenodon robustus – or unidentified comparable form Acila †Acila castrensis...

osmontii †Acericecis †Acericecis chaneyi – type locality for species †Achaenodon †Achaenodon fremdi – type locality for species †Achlyoscapter †Achlyoscapter...

Contents A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Abies †Achaenodon †Achaenodon uintensis – type locality for species †Acmeodon †Acrocera †Acrocera...

†Aceroryctes dulcis – type locality for species †Achaenodon †Achaenodon insolens – type locality for species †Achaenodon robustus – type locality for species †Acidomomys...