|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|M. F. Ivakhnenko 1973||Rear teeth of lower jaw rounded, with dome-shaped points, acrodont. Small grooves on anterior and posterior faces of points. Incisors have transversely expanded oblong crowns and the tooth substance is strongly rooted in the bone, so that the incisors are practically of thecodont type. Dentary high, rising sharply to the coronoid, with a very broad Meckel's canal.|