Actinoceras
Actinoceras is the principal and root genus of the Actinoceratidae, a major family in the Actinocerida, that lived during the Middle and Late Ordovician.
7 branches of this genus, most-observed first
Actinoceras bigsbyi
speciesActinoceras bigsbyi
Actinoceras kentuckiense
speciesActinoceras kentuckiense
Actinoceras arcuanotum
speciesActinoceras arcuanotum
Actinoceras huronioides
speciesActinoceras huronioides
Actinoceras abortivum
speciesActinoceras abortivum
Actinoceras altopontense
speciesActinoceras altopontense
Actinoceras margaretae
speciesActinoceras margaretae
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Actinoceras in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 941693.