Annals of the South African Museum, Volume 45 |
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Page 378
are also derived from elevations of the cingulum , viz . the lateral parastyle ,
mesostyle and metastyle , and the protostylid , ectostylid and hypostylid of upper
and lower molars respectively , while on the medial side are the protostyle ,
entostyle ...
are also derived from elevations of the cingulum , viz . the lateral parastyle ,
mesostyle and metastyle , and the protostylid , ectostylid and hypostylid of upper
and lower molars respectively , while on the medial side are the protostyle ,
entostyle ...
Page 384
The observations on the state of eruption and wear lead to the following
conclusions : 1. For both the milk and permanent dentitions ( with the exception of
DM4 , vide infra ) , the upper teeth erupt slightly before the corresponding lower
teeth .
The observations on the state of eruption and wear lead to the following
conclusions : 1. For both the milk and permanent dentitions ( with the exception of
DM4 , vide infra ) , the upper teeth erupt slightly before the corresponding lower
teeth .
Page 392
The column type secondary cusps are always found on molars and premolars ,
anterior and posterior to the buccal paracone and metacone , and to the lingual
parametaconid and entoconid of upper and lower teeth respectively , i.e.
parastyle ...
The column type secondary cusps are always found on molars and premolars ,
anterior and posterior to the buccal paracone and metacone , and to the lingual
parametaconid and entoconid of upper and lower teeth respectively , i.e.
parastyle ...
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additional African Alfred antennae anterior aperture apex appearance aspect axial ribs band base becoming body breadth broken brown buccal callus Cape central plate cingulum cirri columella Conch cusps dead described developed diam distinct dorsal Durban East enamel examples extending False Bay fathoms figure fish foot fragment groove knobs lateral length less lirae Living lobe lower Makapansgat margin marked Martens material Maximum metres middle Museum narrow Natal Notes occlusal Operculum outer lip P.F. coll pair pale pillar plate Point Port posterior Postnatal whorls present protoconch radula Records Remarks root rostrum rounded rows seen segments setae shell shoulder shows side similar slightly Smith smooth sometimes Sowerby species specimens spiral spiral lirae spire striae surface suture Table Table Bay teeth Thiele Tomlin tooth Turton upper usually