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Fossils from Monmouth County, New Jersey

Nurse (Cantioscyllium decipiens)

Age – Late Cretaceous; Commonality – Scarce; Size – ~1/8- ¼ inches
The nurse sharks were bottom-dwelling sharks which typically fed upon lobsters and other invertebrates by a sucking motion from their mouth. Their teeth are small and have a unique shape. The crown is triangular with ridges on the labial face and has from one to three weak cusplets. The root has three nutrient pores and is usually missing.

Anterior Teeth

Labial View

Lingual View

Profile View of Mesial Side

Nurse Shark Cretaceous (Cantioscyllium decipiens) Anterior tooth, New Jersey

Profile View of Distal Side

Basal View

Anterior teeth are relatively tall. This one is missing the root. C. decipiens teeth differ from G. globidens teeth in that they have cusplets, a larger root (when complete), and a surface that is not as flat. Both species have labial wrinkles.

Labial View

Lingual View

Profile View of Mesial Side

Profile View of Distal Side

Profile View of Distal Side

Basal View

This tooth has a partial root.

Lateral Tooth

Labial View

Lingual View

Profile View of Mesial Side

Nurse Shark Cretaceous (Cantioscyllium decipiens) Lateral tooth, New Jersey

Profile View of Distal Side

Basal View

Lateral teeth are relatively wide. This tooth is missing the root.

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