Annals of the South African Museum, Volume 45 |
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Page 426
The sides of the central pit of the posterior pillar are slightly more separated than
in the anterior pillar , and there is a protrusion of enamel in the direction of the
talonid . The anterior pillar is more rounded than the posterior pillar , the
peripheral ...
The sides of the central pit of the posterior pillar are slightly more separated than
in the anterior pillar , and there is a protrusion of enamel in the direction of the
talonid . The anterior pillar is more rounded than the posterior pillar , the
peripheral ...
Page 427
The enamel has a rather rugose appearance . There is a small cingulum present
. No features can be identified because of the marked wear and fragmentation .
Occlusal surface . The central pits are completely worn away , except for a small ...
The enamel has a rather rugose appearance . There is a small cingulum present
. No features can be identified because of the marked wear and fragmentation .
Occlusal surface . The central pits are completely worn away , except for a small ...
Page 461
The general appearance is that of M 531 , except that the rugosity is more
widespread and that the small island of enamel on the occlusal surface which
leads up to the metastyle is in contact with the enamel of the rest of the central pit
.
The general appearance is that of M 531 , except that the rugosity is more
widespread and that the small island of enamel on the occlusal surface which
leads up to the metastyle is in contact with the enamel of the rest of the central pit
.
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Common terms and phrases
additional African Alfred antennae anterior aperture apex appearance aspect axial ribs 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 South African Sowerby species specimens spiral spiral lirae spire striae surface suture Table Table Bay teeth Thiele Tomlin tooth Turton upper usually