Apsidoceras

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- ApsidoceratidaePBDB
- Diet
- carnivorePBDB, for Cephalopoda
- Life habit
- nektonicPBDB, for Cephalopoda
- Motility
- fast-movingPBDB, for Cephalopoda
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 5 million years on record.
The record covers at least 450.2 Mya to 445.2 Mya. No occurrence read is dated outside 457.3 Mya to 443.1 Mya.
9 occurrences of Apsidoceras on record, most of them in the Ordovician. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
9 occurrences- Ordovician100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
6 formations
- Grande Coupe Formation2
- Tetreauville Formation · Trenton Group2
- Grimsøya Formation2
- Chasm Creek Formation · Churchill River Group1
- Akpatok Formation1
- Langøyene Formation1
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The named rock units Apsidoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Apsidoceras and its relatives
OrdovicianWhere Apsidoceras and its relatives were recorded in the Ordovician.
Found in the same rock
67 taxa- Actinoceras insulaenigrae1 site
- Beloitoceras1 site
- Bighornia1 site
- Bighornia patella1 site
- Billingsites1 site
- Calapoecia1 site
- Calapoecia anticostiensis1 site
- Calyptaulax glabella1 site
- Calyptaulax norvegicus1 site
- Charactoceras1 site
- Christiania1 site
- Cliftonia1 site
- Conotreta1 site
- Cyclopyge1 site
- Cyclopyge angustata1 site
- Cyclopyge vigilans1 site
- Danoceras1 site
- Diacalymene consimilis1 site
- Diestoceras1 site
- Diestoceras lavalense1 site
- Dinorthis occidentalis1 site
- Donacoceras percense1 site
- Encrinurus1 site
- Favistella1 site
The Paleobiology Database records 8 sites for Apsidoceras, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
5 references- The Upper Ordovician Cephalopods of the Oslo Area3
- New Ordovician Cephalopods from Eastern North America2
- Cephalopods from the Upper Ordovician of Perce, Quebec2
- Ordovician paleontology of the Northern Hudson Bay lowland1
- Contributions to the geology of Foxe Land, Baffin Island1
Each of the 9 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Apsidoceras
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itApsidoceratidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1884