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Showing results for tags 'hassianycteris'.
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Prepped by transfer method found in: Toombs, Harry; Rixon, A. E. (1950). "The use of plastics in the ‘transfer method’ of preparing fossils". The Museums Journal. 50: 105–107. Picture 1: Body. Picture 2: Close up of skull and ear. Four bat genera with a total of 8 species are currently known from Messel: Palaeochiropteryx tupaiodon; Palaeochiropteryx spiegeli; Archaeonycteris trigonodon; Archaenycteris pollex; Trachypteron franzeni; Hassianycteris messelensis; Hassianycteris magna and Hassianycteris? revilliodi. The genus Palaeochiropteryx is the most common and smallest bat from Messel with a wingspan of around 26 to 29 cm. Archaeonycteris is rarer and somewhat larger, the wingspan is about 37 cm. The largest bat in Messel is Hassianycteris magna with a wingspan of almost 50 cm. Taxonomy according to Fossilworks. Diagnosis for Hassianycteris messelensis is from SMITH & STORCH, 1981: “Overall size large (Tab. 1); dental formula I 2/3 C 1/1 P 2(3)/3 M 3/3 = 36 (38), first upper premolar (P 2/ ) absent in messelensis n. sp. and reduced to a tiny spicule in magna n. sp.; third lower premolar (P /4) not molariform, metaconid lacking and taloned short; dentition massive and high; naso-maxillary branch of premaxillary moderately broad, palatal branch not well developed, premaxillaries not fused; nasals long; phalangeal formula (manus) 2, 2, 3, 3, 3; index finger not terminating with claw; fifth metacarpal markedly short compared to third and fourth metacarpals; radius extremely long and characteristically bowed.” Identified by SMITH & STORCH, 1981 (reference number Forschungsinstitut Senckenberg SMF 80/1381; this is one of the paratypes in their publication). Reference: Smith, J. D. & Storch, G. (1981): New Middle Eocene bats from “Grube Messel” near Darmstadt, W-Germany. Senckenbergiana biologica, 61 (3/4): 153-167. Richter, G. & Storch, G. (1980): Beiträge zur Ernährungsbiologie eozäner Fledermäuse aus der "Grube Messel". Natur und Museum, 110 (12), p. 353-367.
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