Anagymnotoceras spivaki
No picture of Anagymnotoceras spivaki was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Anagymnotoceras spivaki, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AnagymnotocerasPBDB
- Diet
- carnivorePBDB, for Ceratitida
- Life habit
- nektonicPBDB, for Ceratitida
- Motility
- actively mobilePBDB, for Ceratitida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 5.6 million years on record.
Every occurrence read is dated to somewhere between 247 Mya and 241.464 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
7 occurrences of Anagymnotoceras spivaki on record, most of them in the Middle Triassic. 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
7 occurrences- Middle Triassic100%
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
2 formations
- Favret Formation · Star Peak Group3
- Toad Formation3
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The named rock units Anagymnotoceras spivaki has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Anagymnotoceras spivaki and its relatives
Middle TriassicWhere Anagymnotoceras spivaki and its relatives were recorded in the Middle Triassic.
Found in the same rock
11 taxa- Platycuccoceras favretense3 sites
- Amphipopanoceras selwyni1 site
- Anagymnotoceras wrighti1 site
- Eogymnotoceras thompsoni1 site
- Hollandites minor1 site
- Intornites williamsi1 site
- Nicomedites arthaberi1 site
- Parapopanoceras inconstans1 site
- Proarcestes1 site
- Ptychites guloensis1 site
- Stenopopanoceras celere1 site
The Paleobiology Database records 7 sites for Anagymnotoceras spivaki, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- A new Middle Anisian (Middle Triassic) ammonoid zone from northwestern Nevada3
- Anisian (Middle Triassic) ammonoids from British Columbia (Canada): biochronological and palaeobiogeographical implications1
- New ammonoids from the Taylori Zone (Middle Anisian, Middle Triassic) from northwestern Nevada (USA)1
- Canadian Triassic Ammonoid Faunas1
- Middle Triassic (Anisian) ammonoids from northeastern British Columbia and Ellesmere Island1
Each of the 7 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 content0
No picture of Anagymnotoceras spivaki was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Anagymnotoceras spivaki, or no answer at all. This entry cannot say which.
No 3D scan of Anagymnotoceras spivaki was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAnagymnotoceras through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (McLearn 1946)