Chondrichthyes I: Paleozoic Elasmobranchii |
Common terms and phrases
acanthodians AGASSIZ Agassizodus axial basal rods batoid BENDIX-ALMGREEN braincase branchial calcified caseodontoid Caseodus caudal fin chimaeroids chondrichthyans Cladodus Cladoselache Cobelodus consists crest crown cusps DAVIS dentition dermal denticles Devonian distal dorsal fin Edestus elasmobranchs elements elongated Eugeneodontida Fadenia fin spines fishes FMNH forms fossil fused genera genus gill Heteropetalus holotype hyoid Iniopterygia iniopterygians Janassa JOHN & WORTHEN labial lateral teeth lepidomoria Limestone lobe Logan Quarry Lower Carboniferous lower jaw M'Coy mandibular arch MECKEL'S cartilages morphology morphotype MOY-THOMAS mucous membrane denticles neurocranium NEWBERRY & WORTHEN NIELSEN Ornithoprion Orodus orthodentine ØRVIG otico-occipital region palatoquadrate Paleozoic Paleozoic chondrichthyans pectoral fin pelvic fin Permian petalodonts Petrodus placoderms placoid posterior primitive Promexyele pulp cavity Quarry shale radials relatively ridges scapulocoracoid shoulder girdle skeleton specimen Stethacanthus Subterbranchialia symmoriids symphysial teeth tail fin tooth base tooth families tooth plates tooth whorls trabecular dentine Type species Upper Carboniferous ventral vertebral vitrodentine xenacanth ZANGERL