Tethylamna fossil map
Where fossils of Tethylamna have been found, shown on the Earth as it looked about 45 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 45 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 | Ancient fish & sharks |
|---|---|
| Lived | 56–37.71 million years ago (Ypresian to Bartonian) |
| Periods | Paleogene |
| Family | Odontaspididae |
| Named by | Cappetta and Case 2016 |
| Fossil records | 7 occurrences at 7 locations (PBDB) |
| Found in | United States |
| Rock formations | Tallahatta, Lisbon, Gosport Sand |
About Tethylamna
Tethylamna is an extinct genus of mackerel sharks that lived during the Eocene. It contains one valid species, T. dunni, and T. twiggsensis. Its fossils have been found in North America, South America, Africa, and Asia. T. twiggsensis has also been assigned to Brachycarcharias, Lamna, and Cretalamna. Some paleontologist suggested that Brachycarcharias koerti might have some relation and could even belong to same genus, making it a possible third species, but this classification hasn't been formalized yet.
Text in “About” is quoted from the Wikipedia article Tethylamna (revision 1375610379), 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: Q115802974.
