Annals of the South African Museum, Volume 89The Museum, 1982 - Natural history |
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Page 8
... broad pygidial axis . × 1,7 . Thorax . The thorax comprises 9 segments only ( Fig . 7C ) with a well- defined , strongly convex axis . The pleural fields are strongly down - turned distally , with well - defined fulcra . There are deep ...
... broad pygidial axis . × 1,7 . Thorax . The thorax comprises 9 segments only ( Fig . 7C ) with a well- defined , strongly convex axis . The pleural fields are strongly down - turned distally , with well - defined fulcra . There are deep ...
Page 88
... broad anteriorly and tapers rather rapidly to the posterior for the anterior 5 rings , whereafter the moderately deep axial furrows become subparallel . There are about 10 axial rings , of which the last few are rather indistinct ...
... broad anteriorly and tapers rather rapidly to the posterior for the anterior 5 rings , whereafter the moderately deep axial furrows become subparallel . There are about 10 axial rings , of which the last few are rather indistinct ...
Page 150
... broad . ( exsag . ) , sinuous , almost connecting with the 2p furrows proximally but failing to unite with the axial furrows . The 2p furrows are also very broad ( exsag . ) , transverse , and weakly connected to the axial furrows . The ...
... broad . ( exsag . ) , sinuous , almost connecting with the 2p furrows proximally but failing to unite with the axial furrows . The 2p furrows are also very broad ( exsag . ) , transverse , and weakly connected to the axial furrows . The ...
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 & Braniša 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