|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.
|R. Matsumoto et al. 2009||Medium-sized (approximately 1 m total length) choristodere characterized by closed neurocentral sutures; anteroposteriorly elongated neural spines with transversely expanded, rugose, spine tables on dorsal vertebrae; tall, narrow caudal vertebral neural spines; and a waisted ilium with an almost rectangular iliac blade patterned by coarse anteroposterior ridges.|