Fossil Information (Phanerozoic Eon)

ID:297
Fossil Type:Tooth
Fossil Description:Mackerel shark
Status:Extinct
Relative Size:Large
Class:Chondrichthyes
Subclass:Elasmobranchii
Scientific Name (Genus species):Archaeolamna kopingensis (Davis, 1890) (also called Plicatolamna arcuata and Cretodus arcuatus) formerly Odontaspis kopingensis (Davis, 1890) and Lamna arcuata (Woodward, 1894)
Era/Period:Cenozoic/Tertiary
Epoch/Age:Eocene (Mid Miocene to Late Eocene 7 to 49 mya)
MYA:34 to 55
Discovery Location (Water, Land):Shark River
Discovery Location (City, ST):Wall/Neptune, NJ
Discovery Location (County):Monmouth
Deepest Formation:Shark River/Manasquan undifferentiated
Color:Brown root, orange crown
Dimensions:0.6"L
Comments:Upper Anterior, triangular crown curved back, no striations, no serrations (smooth cutting edges), wide stocky U-shaped root, triangular side cusplets, bilobate roots with a U-shaped basal margin and a lingual protuberance, weak nutrient groove
Collector Name:RLD
Image Filename 1:DSCF3975.jpg
Image Filename 2:DSCF3974.jpg
Image Filename 3:DSCF3978.jpg
Image Filename 4:DSCF3977.jpg

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