The postcranial anatomy of Suminia getmanovi (Synapsida: Anomodontia), the earliest known arboreal tetrapod Author Fröbisch, Jörg Author Reisz, Robert R. text Zoological Journal of the Linnean Society 2011 2011-01-21 162 3 661 698 http://dx.doi.org/10.1111/j.1096-3642.2010.00685.x journal article 10.1111/j.1096-3642.2010.00685.x 0024-4082 5440556 VENYUKOVIOIDEA WATSON & ROMER, 1956 Revised diagnosis Basal anomodonts characterized by four unambiguous autapomorphies: (1) maxillary alveolar region long, occupying 72% or more of the length of the bone; (2) fused vomers; (3) mid-ventral plate of vomers without expanded area posterior to junction with premaxilla; (4) premaxilla–palatine contact present. In addition, four ambiguous autapomorphies need to be confirmed by more complete material of Otsheria or Ulemica : (5) coarse serrations on marginal teeth present; (6) denticulated cingulum on marginal teeth present; (7) squared-off profile of occiput in posterior view present; (8) olecranon process poorly ossified and presumably cartilaginous.