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THE SHARKS |
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Extinct Sharpnose Shark Age - Eocene Commonality - Scarce The teeth of the extinct sharpnose
shark are small, averaging about ¼ inch in length and reaching a maximum
of a little under ½ inch. While similar to the tigers these teeth have a
very distinctive root. The roots are bulky with a flat face that angles
away from the lingual side of the tooth. There is a strong lingual
protuberance and deep nutrient grove. The teeth of P. secundus
show differences between male and female. The most conspicuous
difference occurs in the
distal serrations. The serrations on female teeth number from
3 to 5 and are uniformed, while on the male these serrations number
between 2 to 3 and are uneven. There is little difference between the
anterior and lateral teeth.
The teeth of Physogaleus secundus
average about 1/4 inch in length.
The roots of the sharpnose are very distinctive, they have a strong
Left - male / Right female (labial view)
Lingual view of a sharpnose tooth. |
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