Identifying shark teeth Klik

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Identifying shark teeth


bourdon genus pageAnomotodon craevenensis CASE 1980 - Extinct Goblin shark
Recovered from upper Pungo River sediments, this single specimen is likely re-worked from underlying Oligocene sediments. Not reported by Purdy et al (2001).

anatodus –retroflexus Asteracanthus sp.

photo : anotodus-retroflexus-1.jpg photo : anotodus-retroflexus.jpg photo : asteracanthus-sp-1.jpg photo : asteracanthus-sp-2.jpg

archarodon vs Carcharocles

The most famous sharks of Neogene seas remain in phylogenetic limbo as those best able to evaluate the subject debate their heritage. In the early 90's, the genus Carcharocles came into vogue. If the extant Great White is viewed as a descendant of Cosmopolitodus, then Carcharocles would be the proper genus.

Purdy et al (2001) synonymize Palaeocarcharodon and Carcharocles with Carcharodon, and reject Otodus and Cosmopolitodus (Isurus) as part of the lineage.

Carcharocles is the proper genus for this tooth-design.

photo : carcharias-acutissima-2.jpg photo : carcharias-acutissima.jpg photo : carcharias-cuspidata-2.jpg photo : carcharias-cuspidata.jpg

photo : carcharias-vorax-1.jpg photo : carcharias-vorax-2.jpg

bourdon genus pageheim lee creek pageCarcharias cuspidata (AGASSIZ, 1843)
Extinct Sand Tiger shark

The abundant sand tiger of the Pungo River, Purdy et al (2001) note this species as present in Pungo River (units 1-3) and Yorktown (units 1 & 2) sediments.
bourdon genus pageheim lee creek pageOdontaspis reticulata (PROBST, 1879)
aka Carcharias reticulata
aka O. cf O. acutissima (AGASSIZ, 1844)
Extinct smalltooth sand tiger shark
These small, slender teeth are found in Pungo River tailings. Purdy et al (2001) include these common Pungo River (unit 1-5,?6) teeth as O. acutissima.
heim lee creek pageCarcharias taurus RAFINESQUE, 1810
aka C. acutissima (AGASSIZ, 1844) - (extinct) Sand tiger
Common in the mine, Purdy et al (2001) ascribes these teeth to C. taurus and note their presence in the Yorktown (units 1 & 2) and James City Formations. Others prefer the usage of C. acutissima for these teeth, possibly incorrectly.

carcharocles angustidens carcharocles auriculatis

photo : carcharocles-angustidens-1.jpg photo : carcharocles-auriculatus.jpg

bourdon genus pageheim lee creek pageCarcharocles chubutensis (AMEGHINO, 1906) aka subauriculatus (AGASSIZ, 1839)
extinct Megatoothed shark
Large teeth with lateral cusplets from Miocene tailings; Purdy et al (2001) refer to as Carcharodon subauriculatus; Pungo (units 1-5).

Carcharocles Chubutensis

photo : carcharocles-chubutensis-1.jpg photo : carcharocles-chubutensis-2.jpg photo : carcharocles-chubutensis-3.jpg photo : carcharocles-chubutensis.jpg

Carcharocles disauris

photo : carcharocles-disauris.jpg

bourdon genus pageheim lee creek pageCarcharocles megalodon (AGASSIZ, 1837)
extinct Megatoothed shark.

The largest and best known shark tooth from a huge predator of Pliocene seas. The mine regularly produces near perfect specimens over five inches in height.   Purdy et al (2001) prefer the genus Carcharodon and include these teeth in Pungo (units 4-6) and Yorktown (unit 1) sediments.
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