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Ruhuhuaria, new procolophonid from Triassic of Tanzania



From: Ben Creisler
bcreisler@gmail.com


A new online paper:

Linda Akiko Tsuji, Gabriela Sobral & Johannes Müller (2013)
Ruhuhuaria reiszi, a new procolophonoid reptile from the Triassic
Ruhuhu Basin of Tanzania.
Comptes Rendus Palevol (advance online publication)
doi: http://dx.doi.org/10.1016/j.crpv.2013.08.002
http://www.sciencedirect.com/science/article/pii/S1631068313001152


The Middle Triassic Lifua Member of the Manda Formation (Ruhuhu Basin,
southwestern Tanzania) hosts a diverse fauna dominated by therapsids
and archosauromorphs. Reexamination of fossils from previous
expeditions in addition to new field collections has brought many new
taxa to light. Discovered in the collections of the Cambridge Museum
of Zoology, Ruhuhuaria reiszi gen. et sp. nov. is the first
procolophonoid reptile described from the Ruhuhu Basin. Although the
fossil is poorly preserved, CT scanning reveals crucial diagnostic
morphology, in particular the highly labio-lingually expanded tooth
bases and enlarged anterior dentary teeth. A phylogenetic analysis
shows Ruhuhuaria is nested within the owenettids, but results in an
otherwise poorly resolved tree. The discovery of Ruhuhuaria provides
further evidence of the persistence of owenettids into the Middle
Triassic, and their coexistence with procolophonids well into the
Triassic.