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Haldanodon
''Haldanodon exspectatus'' is an extinct mammaliaform, specifically a docodont. It lived in the Upper Jurassic (Kimmeridgian, about 145 million years ago). Its fossil remains have been found in Portugal, in the famous field Guimarota. == Description == The appearance of this animal, a little more than in length, must have been quite similar to that of the current desman (genera ''Desmana'' and ''Galemys''), small insectivores related to the moles. The body was compact, while the legs were short and robust; the articulation of the distal humerus was particularly expanded, indicating strong muscles. The first forepaw phalanges were short, while those terminals were curved and laterally compressed. The skull was equipped with roughness on the nasal bones, which suggest the presence of a shield of keratin. The jaws were robust; in particular, the mandible was equipped with a highly developed coronoid process, which indicated the presence of very powerful jaw muscles.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Haldanodon」の詳細全文を読む
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