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| 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. The W. Kazakhstan area is the best location for producing (and studying) fossil shark teeth demonstrating the transformation of Otodus to Carcharocles. Otodus obliquus - The Otodus obliquus evolves in the very early Eocene and represents the origin of this transition path. The Otodus obliquus has the non-serrated tooth form. It is the precursor to Carcharocles auriculatus. Otodus mugodzharicus - The Otodus mugodzharicus is the first transitional form identified, and it exhibits light serrations or a wavy type 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. 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. Otodus auriculatus - The Otodus auriculatus or Carcharocles auriculatus is the third transitional form identified, and it exhibits well pronounced heavy to medium serrations covering essentially the complete crown. The side cusps also exhibit strong, irregular serrations. Original Location - Teeth from the Aktulagay, W. Kazakhstan site were the original transitional teeth to enter the market around 2000. This was a special site since it was the only place in the world where the transitional teeth are all found within the same site. Unfortunately, this site played out rather quickly and is very challenging to access. The teeth are found in several zones within the Tologaysor Fm. Otodus mugodzharicus were found in the Tolagaysor Formation (basal NP-12 unit). Otodus aksuaticus were found in the Tolagaysor Formation (NP-11 unit). Otodus auriculatus were found in the Tolagaysor Formation (NP-10 unit or the upper NP-11 unit). The teeth are middle Ysperian in age - approx. 50 mya) from Aktulagay, W. Kazakhstan. New Locations - Recently additional W. Kazakhstan sites in the Mangyshlak and Kzil-Orda regions are producing this fascinating transition series of teeth ranging from the non-serrate Otodus obliquus to the fully serrated Carcharocles auriculatus. Many of these new sites are producing several of the transitional tooth types. The teeth are middle Ysperian in age - approx. 50 mya). I am offering a incredible group of rare serrated Otodus teeth. The largest that I have ever had and this is the last of them. These are exceptional and very rare fossil shark teeth. A must have item for the serious collector of the Giant White fossil shark teeth! Link to the Carcharocles auriculatus --> Kazakhstan Auriculatus Teeth Note - all teeth sizes are slant height unless otherwise noted. Click on photos to enlarge. Catalog updated July 10, 2011.
Link to the Carcharocles auriculatus --> Kazakhstan Auriculatus Teeth 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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