Fossil Stingray Denticle mosasaurtooth Dane Picard

Dane Picard

Due to the lack of any visible impact crater

and Sang-Heon Shim

small leaves

Crassus was forced into a peace meeting by his own men

Fossil Stingray Denticle mosasaurtooth Dane PicardStingrays are an ancient and beautiful ray fish which have glided through the oceans for millions of years. Belonging to the superorder Batoidea, their ancestors were contemporary with dinosaurs, first appearing 145,000,000 years ago. This specimen is a fossil denticle from a stingray. These denticles are specialized dermal scales, which provided armor and reduced water friction on the ancient animals. Since their skeletons are made of cartilage, like