Society for the Study of Amphibians and Reptiles exchanges and international cooperative efforts for study and publications. The society was founded as a regional organization, The Ohio Herpetological Society (OHS), by two young but serious-minded amateurs, Kraig Adler and David M. Dennis, then 16 and 17 years of age respectively. They decided in the fall of 1957 to formalize interactions amongst a small group of amateur herpetologists throughout Ohio and began publishing a combined journal and newsletter (called the "Trimonthly Report") in January 1958. The name of the society was changed to The Society for the Study of Amphibians and Reptiles on January 1, 1967. The SSAR publishes
Evolution of reptiles recent times. Because of alien species out-competing them for food and the inability to escape from humans, there are many endangered species in this order. Sphenodontians arose in the mid Triassic and now consists of a single genus, tuatara, which comprises two endangered species that live on New Zealand and some of its minor surrounding islands. Their evolutionary history is filled with many species. Recent paleogenetic discoveries show that tuataras are prone to quick speciation. The most recent order of reptiles, squamates, are recognized by having a movable quadrate bone (giving them upper-jaw movement), possessing horny scales and hemipenes. They