Description:

Megalodon Shark Evolution. Unlike dinosaurs, tracing shark evolution is very difficult since only teeth are preserved with little other remains The geneology of the largest shark known (over 60 feet) Carcharocles megalodon can be traced back 50 million years to Otodus obliquus of Morocco. This interesting lot of four different shark’s species has complete teeth of each of them to illustrate the change in the teeth, not just in size but also in serrations, and the loss of the secondary side cusps (cusplets). The approximate size of a shark can be estimated from the size of its teeth, ten feet in length for each one inch of tooth. The teeth are measured on their longest diagonal.

1. Otodus obliquus 3 inches long without serrations and two prominent side cusps. This 30 foot long 50 million year old shark was found in the phosphate mines of Morocco.
2. Carcharocles angustidens 3 inches long with serrations and two prominent side cusps and the tooth is getting wider. This 30 foot long 15-20 million year old shark was found in the rivers of South Carolina.
3. Carcharocles chubutensis 2.5 inches long with sharp serrations and two very small side cusps. This 25 foot long 12-20 million year old shark was found in the rivers of South Carolina.
4. Carcharocles megalodon 4.25 inch long with sharp serrations and no side cusps and much wider. This monster 43 foot long 8-15 million year old shark was found in the rivers of South Carolina.
An interesting group of fossil shark’s teeth for both study and display.

Add $20 for domestic shipping.
Estimated Value $500 - 700.

Categories: