Miniopterus zapfei

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Miniopterus zapfei
Temporal range: Middle Miocene (MN 7/8)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Chiroptera
Family: Miniopteridae
Genus: Miniopterus
Species:
M. zapfei
Binomial name
Miniopterus zapfei
Mein & Ginsburg, 2002

Miniopterus zapfei is a fossil bat in the genus

cingulum
shelf surrounding the P4 is less well-developed than in living Miniopterus. The length of the first lower molar is 1.57 to 1.60 mm.

Taxonomy

Miniopterus zapfei was described by

Miniopteridae.[5]

Description

The known material (hypodigm) of Miniopterus zapfei includes a mandible (lower jaw) with the fourth premolar (p4), first molar (m1), and second molar (m2); a mandible with m1; a mandible with m1 and m2; a mandible with m2 and the third molar (m3); a mandible without any teeth; and an isolated fourth upper premolar (P4). Some of the mandibles also preserve the alveoli (openings) for teeth that have not been preserved. The dimensions of the p4 (length and width) are 1.03 x 0.88 mm; m1 is 1.57 to 1.60 x 1.01 to 1.07 mm; m2 is 1.51 to 1.64 x 0.95 to 1.05 mm; the single m3 is 1.41 mm long; and the single P4 is 1.38 x 1.52 mm.[6] In a well-preserved mandible, the length from the alveolus for the first incisor to the end of m3 is 8.80 mm and the depth of the mandible at m1 is 1.50 mm.[2] Miniopterus zapfei can be identified as a Miniopterus on the basis of the possession of three lower premolars (designated p2, p3, and p4, because the original first premolar has been lost); a two-rooted p3; and the

cingulum (shelf) that surrounds the P4 is less well-developed and the parastyle crest is weaker.[2]

Range and ecology

Miniopterus zapfei is known only from the site La Grive M in the village of

MN zone MN 7/8,[9] about 13 to 11 million years ago.[10] La Grive M is one of the older sites of La Grive, and Mein and Ginsburg proposed taking it as the reference locality for a separate zone MN 7.[9] M. zapfei is rare in La Grive M; Miniopterus fossilis is much more common in the same site, and has also been found in La Grive L7 and other European localities ranging from MN 6 to MN 13.[2]

References

  1. ^ Mein and Ginsburg, 2002, p. 23
  2. ^ a b c d e Mein and Ginsburg, 2002, p. 24
  3. ^ Mein and Ginsburg, 2002, p. 24; Ziegler, 2003, p. 485
  4. ^ Ziegler, 2003, p. 484
  5. ^ Miller-Butterworth et al., 2007, p. 1553
  6. ^ Mein and Ginsburg, 2002, pp. 23–24
  7. ^ Mein and Ginsburg, 2002, pp. 7, 24
  8. ^ Mein and Ginsburg, 2002, pp. 7–8
  9. ^ a b Mein and Ginsburg, 2002, p. 37
  10. ^ Steininger, 1999, fig. 1.2

Literature cited