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Archaeonycteris fossil map

Where fossils of Archaeonycteris have been found, shown on the Earth as it looked about 56 million years ago and on today’s map.

Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 56 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

Archaeonycteris
Image: Ghedoghedo, CC BY-SA 3.0, via Wikimedia Commons
GroupEarly mammals
Lived56–37.71 million years ago (Ypresian to Bartonian)
PeriodsPaleogene
FamilyArchaeonycteridae
Named byRevilliod 1917
Fossil records16 occurrences at 7 locations (PBDB)
Found inFrance, Germany, India, Portugal
Rock formationsLignites de Soissonais, txn:40629, Messel, Cambay Shale, Silveirinha

About Archaeonycteris

Archaeonycteris is an archaic bat genus whose fossilised remains have been found in Germany, France, England and India.

The genus was established in 1917, when Pierre Revilliod described the material excavated at the Messel Pit as the fossil species Archaeonycteris trigonodon.

Archaeonycteris trigonodon Revilliod, 1917 - Messel Pit (Lutetian), Germany

Archaeonycteris pollex Storch & Habersetzer, 1988 - Messel Pit (Lutetian), Germany

Archaeonycteris brailloni Russell et al., 1973 - Avenay quarry (Ypresian), France

Archaeonycteris relicta Harrison & Hooker, 2010 - Creechbarrow Limestone Formation, England

Archaeonycteris storchi Smith et al., 2007 - Vastan Lignite Mines (Ypresian), India

A species discovered at the Silveirinha site in Portugal, Archaeonycteris praecursor, was described in 2009 and estimated to be the oldest of the known taxa, and one of the oldest known bats. The fossil material uncovered in Dorset, England, and described as Archaeonycteris relicta is dated to a later period in the Eocene, this is the most recent known species. The only species to found beyond Europe is the Early Eocene fossil species Archaeonycteris storchi, which occurs in India.

Text in “About” is quoted from the Wikipedia article Archaeonycteris (revision 1292760420), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q9158935.

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