Lamniformes Compagno 1973
Paleogene was a time of lamniforms', especially odontaspidids', well-being. Their teeth constitute the majority of all the teeth in the sands, and the biggest specimens occur among them.
Several percent of these teeth are pretty complete.
Striatolamia macrota (Agassiz, 1843).
An anterior.
Striatolamia macrota: twice smaller tooth.
Notice tiny wrinkles on the base of the labial side.
Jaekelotodus.
Unusually small and somewhat strangely shaped.
Juvenile? Intermediate?
Another intermediate tooth
Odontaspididae Müller & Henle 1839 (certain)
Odontaspis Agassiz 1838. A lower tooth.
Odontaspis-like tooth. Lower one.
Cutting edge is complete and somewhat serrated at the base.
Another interesting specimen.
Hypotodus verticalis (Agassiz, 1843) (?)
Note "leopard" spot pattern, best seen on the labial side.
Labial side stereo.
3-dimensional look shows that spots are not on the enameloid, but inside the tooth: on dentine/enameloid boundary. They seem to reflect structure of osteodentine, not to be simple common stains around small scratches.
Symphyseal.
Notice double cusplets and short wrinkles on the labial side.
Mitsukurinidae Jordan 1898 (certain)
Anomotodon sheppeyensis (Casier, 1966). Small one.
Bigger one from the same species.
Notice strong striations, even below the crown.
Such teeth are rare in these places.
The same species.
Note hardly visible mesial cusplet and lingual striations (only along the edges).
Somewhat more common, but still scarce kind of teeth.
Lamnidae Müller & Henle 1838
Isurolamna affinis (Casier, 1946). Relatively common teeth.
A lateral with prominent second pair of cusplets.
Twice smaller tooth. The same species?
Isurolamna affinis anterior
Macrorhizodus praecursor
Xiphodolamia ensis Leidy, 1877. An anterior.
Teeth, which can not be confused with anything. And can be at a glimpse identified to species due to work of Adnet et al. (2009), who merged 3 species of this genus into one.
One more Xiphodolamia anterior.
Less complete, but remarkably big one: almost 3 cm in max. length.
Unlike previous specimen, it lacks second cutting edge completely.
Xiphodolamia lateral. With distinctive flat root.