![]() Seven living gar species are found in freshwaters of North America, Central America, and Cuba. Order Lepisosteiformes, Family Lepisosteidae NPS Photo Gars - 4 Species Identified: Lepisosteus bemisi, Atractosteus simplex, Atractosteus atrox & Masillosteus janei Modern freshwater stingrays are found in tropical river systems of South America and Asia.Ītractosteus simplex, catalog number FOBU788 Stingray fossils are found in association with these invertebrates, indicating their ancient diet was similar to their modern relatives'. ![]() Most are bottom-dwellers and feed on bottom-dwelling invertebrates, such as shrimp and crayfish. There are almost 200 modern stingray species. ![]() maloneyi specimen was found with several baby stingrays scattered around it. Due to the number of specimens that have been found, the life cycles of the ancient species can be studied. Currently, the FBM is the only place in the world where articulated, complete freshwater stingray fossils have been discovered. Stingrays have cartilaginous skeletons (lacking bones), so it is rare to find more than their teeth or stings fossilized. NPS Photo Stingrays - 2 Species Identified: Heliobatis radians & Asterotrygon maloneyi Asterotrygon maloneyi, catalog number FOBU408
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