Annals of the South African Museum, Volume 89The Museum, 1982 - Natural history |
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Page 57
... weakly joined , tending to isolate the L2 lobes . Moreover , the 2p and 1p furrows are weakly connected across the glabella ( Fig . 43A ) by variably developed transglabellar furrows . The occipital furrow is rather narrow , with ...
... weakly joined , tending to isolate the L2 lobes . Moreover , the 2p and 1p furrows are weakly connected across the glabella ( Fig . 43A ) by variably developed transglabellar furrows . The occipital furrow is rather narrow , with ...
Page 122
... weakly connected to the axial furrows . The 2p furrows are moderately impressed , anteriorly convex , and weakly connected to the axial furrows . The 1p furrows are very deep and directed strongly posterome- dially , so that the L1 ...
... weakly connected to the axial furrows . The 2p furrows are moderately impressed , anteriorly convex , and weakly connected to the axial furrows . The 1p furrows are very deep and directed strongly posterome- dially , so that the L1 ...
Page 156
... weakly convex . The glabella is distinctly pentagonal , with weakly impressed , broad , shallow , almost parallel axial furrows and a rhomboidal frontal lobe . The latter is weakly convex , distinctly marked by the auxiliary impression ...
... weakly convex . The glabella is distinctly pentagonal , with weakly impressed , broad , shallow , almost parallel axial furrows and a rhomboidal frontal lobe . The latter is weakly convex , distinctly marked by the auxiliary impression ...
Contents
Family Otarionidae | 14 |
Family Dalmanitidae | 45 |
Family Synphoriidae | 51 |
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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 faunas figured Francovichia frontal lobe gamkaensis Gamonedaspis genal angles genera genus glabella Gydo Formation 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 narrow occipital furrow occipital ring ocellus Oosthuizenella Oxytropidoceras Pennaia petrosal Phacopina Phacops Phoca phocids pleural fields pleural grooves posterior border furrows Potamotherium preserved as internal pugnacious pygidial pygidium Reed Rennie Renniella ribs ring furrows sagittal length Schwarz segmentation Semantor semantorids slightly South African Museum specimens strongly subfamily suckers synapomorphy thorax transverse trilobites tubercles Typhloniscus ventral weakly width Wolfart Zone