Brocklehurst, N. Frobisch, J. 2017 A re-examination of the enigmatic Russian tetrapod <em>Phreatophasma aenigmaticum</em> and its evolutionary implications Fossil Record 20 87-93 Tseajaia_campi Limnoscelis Captorhinus Protorothyris_archeri Dimetrodon_spp Secodontosaurus_obtusidens Ctenorhachis_jacksoni Sphenacodon_ferocior Cryptovenator_hirschbergeri Titanophoneus_potens Biarmosuchus_tener Raranimus_dashankouensis Biseridens_qilianicus Pantelosaurus_saxonicus Cutleria_wilmarthi Ianthodon_schultzei Haptodus_garnettensis Edaphosaurus_boanerges Edaphosaurus_novomexicanus Lupeosaurus_kayi Ianthasaurus_hardestii Glaucosaurus_megalops Echinerpeton_intermedium Archaeothyris_florensis Varanosaurus_acutirostris Ophiacodon_spp Stereophallodon_ciscoensis Oromycter_dolesorum Ennatosaurus_tecton Eothyris_parkeyi Oedaleops_campi Casea_broilii Cotylorhynchus_romeri Angelosaurus_romeri Angelosaurus_dolani Caseopsis_agilis Trichasaurus_texensis Cotylorhynchus_hancocki Cotylorhynchus_bransoni Euromycter_rutenus Watongia_meieri Ruthiromia_elcobriensis Varanodon_agilis Varanops_brevirostris Aerosaurus_wellesi Aerosaurus_greenleorum Archaeovenator_hamiltonensis Mesenosaurus_romeri Mycterosaurus_longiceps Heleosaurus_scholtzi BP_1_5678_Elliotsmithia Pyozia_mesensis Eocasea_martini Casea_nicholsi Mycterosaurus_smithae Apsisaurus_witteri Datheosaurus_macrous Callibrachion_gaudreyi Phreatophasma_aenigmaticum Caseoides_sanangeloensis Osteology Maximum Parsimony Based on reanalysis of the original matrix. Brocklehurst_et_Frobisch_2017aa