Emborough Quarries (grid reference ST623505) is a 1 hectare (2.5 acre) geological Site of Special Scientific Interest at Emborough in the Mendip Hills, Somerset, notified in 1971. The disused quarry has yielded a wide variety of remains of vertebrate fossils, amongst which the early reptiles are particularly well represented. Of special note is Kuehneosaurus latus which is one of the earliest-known flying vertebrates. During the Triassic period of geological time, some 230 million years ago, the limestones now exposed on Mendip formed upland areas upon which a number of large rivers rose. Solution cavities were soon created in the land surface and material from the surrounding area was swept into the newly formed cave systems. Remains of the creatures living in the upland areas during this