Annals of the South African Museum, Volume 89The Museum, 1982 - Natural history |
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Page 113
... margin . The axis is broad anteriorly but tapers rapidly to the posterior to terminate in a bluntly rounded tip short of the posterior margin so as to leave a distinct post - axial field . On the lectotype , only the first two axial ...
... margin . The axis is broad anteriorly but tapers rapidly to the posterior to terminate in a bluntly rounded tip short of the posterior margin so as to leave a distinct post - axial field . On the lectotype , only the first two axial ...
Page 238
... margins of abdominal segments , and on scale . Head almost quadrate about one - ninth longer than wide , sides almost straight , hind margin very feebly emarginate , or almost straight . Clypeus with anterior margin arcuate in middle ...
... margins of abdominal segments , and on scale . Head almost quadrate about one - ninth longer than wide , sides almost straight , hind margin very feebly emarginate , or almost straight . Clypeus with anterior margin arcuate in middle ...
Page 245
... margin convex . Clypeus rather convex from side to side , also very convex in lateral view , forming a deep notch between it and junction of frontal carinae ; its anterior margin almost straight . Eyes bulging , large , almost as long ...
... margin convex . Clypeus rather convex from side to side , also very convex in lateral view , forming a deep notch between it and junction of frontal carinae ; its anterior margin almost straight . Eyes bulging , large , almost as long ...
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