Taxon;"no. of cervical vertebrae";"no. of dorsal vertebrae";"no. of sacral vertebrae";"no. of caudal vertebrae";"cervical vertebrae with ribs";"dorsal verte-brae with-out ribs";"tail vertebrae with transverse processes";citation
"Sauroctonus parringtoni (GPIT-PV-31579)";7;21;3;33–34;2;0;7;"Gebauer 2007; 2014"
"Hyperodapedon sanjuanensis (GPIT-PV-31578)";6;19;2;35–40;6;0;"Impossible to determine";"von Huene (1939–42)"
"Dimetrodon limbatus (GPIT-PV-31373)";unknown;"27 presacrals (Case 1910)";"3 (Romer 1927)";"> 20 in e.g. the specimen described by Romer (1927) (observed in the GPIT specimen)";all;0;"Impossible to determine";