Hecticoceras fossil map
Where fossils of Hecticoceras have been found, shown on the Earth as it looked about 160 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 160 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 | 168.2–143.1 million years ago (Bathonian to Tithonian) |
| Periods | Jurassic |
| Family | Oppeliidae |
| Named by | Bonarelli 1893 |
| Fossil records | 83 occurrences at 35 locations (PBDB) |
| Found in | Germany, France, India, Argentina, Madagascar, Switzerland, Russia, Iran, Poland, Spain … |
| Rock formations | txn:96536, "Sengenthal", Habo beds, Lotena, "Berching", Gerpigem |
About Hecticoceras
Hecticoceras is an ammonite genus belonging to the haploceratoid family Oppeliidae, that lived during the Middle and Late Jurassic, from the Callovian. Hecticoceras may be seen as a series of some nine subgenera, beginning with the lower Callovian H. (Hecticoceras) and H. (Hecticoceratoides) and ending with the lower Oxfordian H. (Pseudobrightia) and H. (Eochetoceras). Hecticoceras sensu lato and Prohecticoceras from the underlying Bathonian form the oppeliid subfamily, Hecticoceratinae.
Hecticoceras, including its various subgenera, have a widespread distribution and have been found in the late Middle and early Upper Jurassic of Europe, North Africa, Somalia, India, Madagascar, and possibly Japan.
Text in “About” is quoted from the Wikipedia article Hecticoceras (revision 1320667332), 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: Q9286967.