Hassianycteris

Hassianycteris is an extinct genus of Early Eocene (Ypresian) to Middle Eocene (Lutetian) bats from the Hassianycterididae with four or five known species: the type (H. messelensis), H. magna, and H. revilliodi, all found in the Messel pit, Germany,^[1][2][3] H. kumari, found in the Cambay Shale Formation (Vastan Lignite Mine), India,^[4] and the possible fifth species "H." joeli, found in the Kortijk Clay Formation, Belgium,^[5] which may instead belong to Onychonycteridae.^[3] The Messel bats Palaeochiropteryx and Hassianycteris (alive roughly 48 million years ago) are the first fossil mammals whose colouration has been discovered: both were reddish-brown when alive.^[6][7]

Hassianycteris Temporal range: Early Eocene, 55.8–48.6 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Specimen of H. messelensis from the Messel Pit of Germany
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Chiroptera
(unranked):	Microchiropteramorpha
Family:	†Hassianycterididae
Genus:	†Hassianycteris Smith & Storch, 1981
Species
†Hassianycteris messelensis Smith & Storch, 1981 †Hassianycteris joeli? Smith & Russell, 1992 †Hassianycteris kumari Smith et al., 2007 †Hassianycteris magna Smith & Storch, 1981 †Hassianycteris revilliodi (Russell & Sigé, 1970)