Metaspyroceras

Yale Peabody Museum · CC0 · via GBIF. 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
- DawsonoceratidaePBDB
- Diet
- carnivorePBDB, for Orthocerida
- Life habit
- nektonicPBDB, for Orthocerida
- Motility
- actively mobilePBDB, for Orthocerida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Orthocerida
Time the record covers
At least 17 million years on record.
The record covers at least 450.2 Mya to 432.9 Mya. No occurrence read is dated outside 457.3 Mya to 426.7 Mya.
39 occurrences of Metaspyroceras 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
39 occurrences- Ordovician90%
- Silurian10%
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
20 formations
- Dunleith Formation · Galena Group5
- Racine Formation4
- Platteville Formation3
- Glenwood Formation2
- Decorah Shale Formation2
- Mifflin Formation2
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The named rock units Metaspyroceras has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Metaspyroceras and its relatives
OrdovicianWhere Metaspyroceras and its relatives were recorded in the Ordovician.
Found in the same rock
289 taxa- Michelinoceras23 sites
- Diestoceras16 sites
- Isorthoceras junceum16 sites
- Tripteroceras15 sites
- Whitfieldoceras15 sites
- Centrocyrtoceras14 sites
- Manitoulinoceras14 sites
- Cameroceras12 sites
- Cyrtocerina12 sites
- Endoceras11 sites
- Orthoceras11 sites
- Endoceras proteiforme10 sites
- Gonioceras10 sites
- Spyroceras9 sites
- Actinoceras8 sites
- Beloitoceras8 sites
- Polygrammoceras8 sites
- Probillingsites8 sites
- Probillingsites welleri8 sites
- Westonoceras8 sites
- Antiplectoceras7 sites
- Beloitoceras pandion7 sites
- Fayettoceras7 sites
- Gorbyoceras7 sites
The Paleobiology Database records 28 sites for Metaspyroceras, 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
6 references- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area29
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin4
- Stratigraphy and palaeontology of the Interlake Group and Stonewall Formation of Southern Manitoba2
- Cephalopods from the Upper Ordovician of Perce, Quebec2
- Introduction1
- Cornwallis and Little Cornwallis Islands, District of Franklin, Northwest Territories1
Each of the 39 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 Metaspyroceras
- Source
- GBIF
- Credit
- Yale Peabody Museum
- 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 itDawsonoceratidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Foerste 1932