Vita:Miniopterus tao
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kérés
[szerkesztés]Az alábbi szöveget jó lenne lefordítani. DenesFeri vita 2011. április 7., 13:41 (CEST)
Wołoszyn described the species on the basis of two mandibles, one damaged and with the third premolar (p3) through third molar (m3), and the other intact and with the fourth premolar (p4) through second molar (m2). Miniopterus tao is a large member of the "schreibersii group"[2] and about as large as Miniopterus rummeli from the Miocene of Germany.[4] The mandible is robust and generally resembles M. schreibersii. The mental foramen (an opening at the outer side of the jaw) is located between the lower canine and second lower premolar (p2). The coronoid process (a projection at the back of the mandible) is low and rounded and is connected to the condyloid process behind it by a nearly horizontal ridge, which contains a slight raising at its back. Compared to M. schreibersii, the condyloid process is more slender, but the base of the angular process (at the lower back corner of the jaw) is more robust.[5] In M. rummeli, the back part of the mandible is higher and the coronoid process is distinctly higher than the condyloid process.[6]
The preserved alveoli show that p2 is about as large as p3, not smaller as in the "tristis group" of Miniopterus.[7] The premolars in M. tao are placed closely together, which distinguishes the species from M. schreibersii and fossil European species, including M. rummeli.[8] The p3 is robust and surrounded by a well-developed cingulum (shelf). The crown is trapezoid in shape. In p4, there is a clear cingulum at the front and labial (outer) margins.[5] The crown is triangular and the back edge is straight, not saddle-shaped as in M. schreibersii.[9] The molars resemble those of M. schreibersii, but are more robust, particularly the talonids (the cusp groups at the back of the teeth).[9] The total length of the mandible ranges from 11.6 to 12.4 mm and averages 12.0 mm in ten specimens, the coronoid process is 3.1 to 3.3 mm high, averaging 3.2 mm, and the length of the molar row is 4.0 to 4.4 mm, averaging 4.2 mm.[10]
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