Kazakhstan - Serrated Otodus Teeth

This catalog contains teeth from three rare Otodontid sharks. During the lower Eocene, the Otodus obliquus disappeared in the Caspian area and serrated forms evolved. These Otodus sharks transformed into the Carcharocles genus and the beginning of the Giant White sharks. This W. Kazakhstan area is the best location for producing (and studying) fossil shark teeth demonstrating the transformation of Otodus to Carcharocles. The teeth are found in several zones within the Tologaysor Fm. The only place in the world where this transitional teeth are all found within the same site. The teeth are middle Ysperian in age - approx. 50 mya) from Aktulagay, W. Kazakhstan.

Otodus mugodzharicus - The Otodus mugodzharicus is the first transitional form identified, and it exhibits light serrations to a wavy blade appearance covering the lower 1/2 to 2/3 of the crown (very similar to the Isurus escheri). The side cusps also begin exhibit the appearance of serrations or splitting. Found in the Tolagaysor Formation (basal NP-12 unit).

Otodus aksuaticus - The Otodus aksuaticus is the second transitional form identified, and it exhibits well pronounced medium to light serrations covering the lower 3/4 to 1/2 of the crown. The side cusps also exhibit the appearance of serrations or splitting. Found in the Tolagaysor Formation (NP-11 unit).

Otodus auriculatus - The Otodus auriculatus is the third transitional form identified, and it exhibits well pronounced heavy to medium serrations covering the lower 7/8 of the crown. The side cusps also exhibit strong, irregular serrations. Found in the Tolagaysor Formation (NP-10 unit or the upper NP-11 unit).

These are exceptional and rare fossil shark teeth from a very unique deposit. A must have item for the serious collector of the Giant White fossil shark teeth.

Note - all teeth sizes are slant height unless otherwise noted. Click on photos to enlarge. Catalog updated February 23, 2003.   

Item	Size	Price	Cat. No.	Comments
	1-3/16"	SOLD	K562	An exceptional lateral O. aksuaticus tooth with tan color. Excellent serrations covering 2/3 of crown and side cusps.  Reverse Photo
	1-1/16"	SOLD	K522	A very nice lateral O. mugodzharicus tooth with gray color. Fine serrations covering 2/3 of crown and side cusps.  Reverse Photo

Link to Megalodon Lover's Guide -->  Megalodon Lover's Guide

Kazakhstan Catalog Links:

| Kazakhstan Catalog  | Alopias | Archeolamna | Acrodus | C. auriculatus | Echinorhinus | Enchodus | Eostriatolamia | Galeorhinus | Hypotodus | Isurus | Jaekelotodus | Lamiostoma | Lamna | Macrorhizodus | Mennerotodus | Meristodon | Notorhynchus | Odontaspis | Onchosaurus | Otodus aksu | Otodus mugo | Paraorthacodus | Paratodus | Physogaleus | Scapanorhynchus | Serratolamna | Squalicorax | Squatina | Striatolamia | Synechodus | Trigonotodus | Turania | Usakias |  Xiphodolamia |

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Last modified: January 27, 2008