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Geoemydidae
''Not to be confused with Geomyidae.''
The Geoemydidae (formerly known as Bataguridae) are one of the largest and most diverse families〔 in the order Testudines (turtles), with about 70 species. The family includes the Eurasian pond and river turtles and Neotropical wood turtles.
==Characteristics==
Geoemydidae are turtles of various sizes (from about 10 to 80 cm in length) with often a high degree of sexual dimorphism. They usually have webbed toes, and their pelvic girdles articulate with their plastrons flexibly. Their necks are drawn back vertically. Their carapaces have 24 marginal scutes. The plastron is composed of 12 scutes and has no mesoplastron; the pectoral and abdominal scutes contact the marginal scutes.
Some other features include a single articulation between the fifth and sixth cervical vertebrae, the lack of a hyomandibular branch of the facial nerve, and an epipterygoid bone in the skull.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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