Ornithoprion fossil map
Where fossils of Ornithoprion have been found, shown on the Earth as it looked about 300 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 300 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 | 315.2–307 million years ago (Moscovian) |
| Periods | Carboniferous |
| Family | Caseodontidae |
| Fossil records | 6 occurrences at 2 locations (PBDB) |
| Found in | United States |
| Rock formations | Linton, Staunton |
About Ornithoprion
Ornithoprion is an extinct genus of cartilaginous fish. The only known species, O. hertwigi, lived during the Moscovian stage of the Pennsylvanian subperiod, which spanned from 315 to 307 million years ago. Its fossils are preserved in black shales from what became the Midwestern United States. The study of Ornithoprion was performed primarily via x-ray imaging, and at the time of its discovery it represented one of the best known holocephalans of the Paleozoic era. The classification of the genus has been the subject of debate due to its unique anatomy; it is placed in the order Eugeneodontiformes and the family Caseodontidae. Ornithoprion's genus name, which may be translated from Greek as 'bird saw', was inspired by the animal's vaguely bird-like skull and the saw-like appearance of the teeth in the lower jaw, while the specific name honors German zoologist Oscar Hertwig.
Text in “About” is quoted from the Wikipedia article Ornithoprion (revision 1370056298), 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: Q21217611.
