Tetracus fossil map
Where fossils of Tetracus have been found, shown on the Earth as it looked about 30 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 30 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 →
| Group | Early mammals |
|---|---|
| Lived | 37.71–23.04 million years ago (Priabonian to Chattian) |
| Periods | Paleogene |
| Family | Erinaceidae |
| Named by | Aymard 1850 |
| Fossil records | 24 occurrences at 10 locations (PBDB) |
| Found in | France, Belgium |
| Rock formations | txn:40367, Borgloon |
About Tetracus
Tetracus is an extinct genus of gymnures. Species are from the Oligocene of Belgium and France. Fossils can also be found in the Bouldnor Formation in the Hampshire Basin of southern England.
Species:
†Tetracus nanus (Aymard, 1846)
synonym Erinaceus nanus Aymard, 1846
synonym Camphotherium elegans Filhol, 1883, Filhol, 1884
synonym Comphotherium elegans Filhol, 1884, Filhol 1885
synonym Gomphotherium elegans Filhol, 1884 in Schlosser, 1887, p. 140 and 465 and in Lavocat, 1951, p. 14
synonym Neurogymnurus minor Filhol, 1884
synonym Necrogymnurus minor in Lavocat, 1951, p. 13
synonym Tetracus bouti Lavocat, 1951, dans Lavocat, 1951.
Text in “About” is quoted from the Wikipedia article Tetracus (revision 1314663817), 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: Q28432509.
