Caucasochasma fossil map
Where fossils of Caucasochasma 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 | Ancient fish & sharks |
|---|---|
| Lived | 33.9–27.3 million years ago (Rupelian) |
| Periods | Paleogene |
| Family | Cetorhinidae |
| Named by | Prokoviev and Sychevskaya 2018 |
| Fossil records | 1 occurrences at 1 locations (PBDB) |
| Found in | Russia |
| Rock formations | Khadum |
About Caucasochasma
Caucasochasma is an extinct genus of basking sharks that lived during the Oligocene. It contains one species, C. zherikhini. It is known from a mostly-complete skeleton from the Pshekha Formation of Russia. It has a body plan more similar to sand sharks than to extant basking sharks, which indicates that it was a benthic filter feeder.
Text in “About” is quoted from the Wikipedia article Caucasochasma (revision 1366547872), 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: Q113468463.
