Cameroceras fossil map
Where fossils of Cameroceras have been found, shown on the Earth as it looked about 445 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 445 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 | Ammonites & nautiloids |
|---|---|
| Lived | 486.85–443.1 million years ago (Tremadocian to Hirnantian) |
| Periods | Ordovician |
| Family | Endoceratidae |
| Named by | Conrad 1842 |
| Fossil records | 89 occurrences at 57 locations (PBDB) |
| Found in | United States, China, Sweden, Spain, Canada, UK, Estonia, Norway, Russian Federation |
| Rock formations | Honghuayuan, Dunleith, St. Peter Sandstone, Boda Limestone, Denley Limestone, Lianjiashan |
About Cameroceras
Cameroceras, from Ancient Greek καμάρα (kamára), meaning "chamber", and κέρας (kéras), meaning "horn", is an extinct genus of endocerid cephalopod which lived in equatorial oceans during the entire Ordovician period. Like other endocerids, it was an orthocone, meaning that its shell was fairly straight and pointed. It was particularly abundant and widespread in the Late Ordovician, inhabiting the shallow tropical seas in and around Laurentia, Baltica and Siberia (equivalent to modern North America, Europe, and Asia).
Text in “About” is quoted from the Wikipedia article Cameroceras (revision 1353695863), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 22 October 2026. Ages are those of the rock layers the fossils were found in.
