Annals of the South African Museum, Volume 89The Museum, 1982 - Natural history |
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Page 21
... considered of specific importance . Similarly , the strength of the glabellar segmentation is so variable , depending on ontogenetic stage and mode of preservation , that it , too , does not appear to be of taxonomic importance among ...
... considered of specific importance . Similarly , the strength of the glabellar segmentation is so variable , depending on ontogenetic stage and mode of preservation , that it , too , does not appear to be of taxonomic importance among ...
Page 181
... considered as symplesiomorphies within the ' phocid - semanto- rid - lutrid ' group . So too must be considered the fairly well - developed tail of the semantorids . The Phocidae , the Semantoridae and the Lutridae constitute a ...
... considered as symplesiomorphies within the ' phocid - semanto- rid - lutrid ' group . So too must be considered the fairly well - developed tail of the semantorids . The Phocidae , the Semantoridae and the Lutridae constitute a ...
Page 309
... considered diag- nostic of the uppermost biostratigraphic zone in the Lower Albian , to which it gives its name . Thus , the rich Douvilleiceras faunas from the rest of the world are almost invariably assigned to the zone of D ...
... considered diag- nostic of the uppermost biostratigraphic zone in the Lower Albian , to which it gives its name . Thus , the rich Douvilleiceras faunas from the rest of the world are almost invariably assigned to the zone of D ...
Contents
Family Otarionidae | 14 |
Family Dalmanitidae | 45 |
Genus Gamonedaspis | 54 |
Copyright | |
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Common terms and phrases
2p furrows 9 fig abaxially Acropyga adaxial Anoplolepis anteriorly apodemal pits distally apomorphic arbuteus Lake axial furrows axial rings axis Bainella baini Baldis bulla Burmeisteria herscheli Murchison Calmonia cephalon Clarke Cryphaeus custodiens Dalmanites deep Devonian distinct Douvilleiceras Eldredge & BraniĊĦa exsag external cochlear foramen eyes facial suture fauna Francovichia frontal lobe gamkaensis Gamonedaspis genal angles genera genus geol glabella Histriophoca holotype Homalonotus internal moulds Kozlowski Kozlowskiaspis L1 lobes lateral view lectotype Lobodontini Malvinokaffric margin material median Metacryphaeus Mirounga Miroungini moderately convex monachines Monachus Monotherium Muizon narrow occipital furrow occipital ring ocellus Oosthuizenella Oxytropidoceras Pennaia petrosal Phacopina Phacops Phoca phocids pleural fields pleural grooves post-axial posterior border furrows Potamotherium preserved as internal pugnacious pygidial pygidium Reed Rennie Renniella ribs ring furrows sagittal length Schwarz seals segmentation Semantor semantorids slightly South African Museum specimens strongly subfamily suckers synapomorphy thorax transverse trilobites tubercles Typhloniscus ventral weakly width Wolfart