Gymnotoceras
No picture of Gymnotoceras 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 Gymnotoceras, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- BeyrichitinaePBDB
- 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 least 5.5 million years on record.
The record covers at least 247 Mya to 241.464 Mya. No occurrence read is dated outside 250.8 Mya to 237 Mya.
210 occurrences of Gymnotoceras 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
210 occurrencesThese 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
13 formations
- Prida Formation · Star Peak Group25
- Botneheia Formation · Sassendalen Group20
- Toad Formation10
- Ulakhan-Krest Formation9
- Favret Formation · Star Peak Group7
- Bravaisberget Formation · Sassendalen Group5
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The named rock units Gymnotoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 123 occurrences have no formation on record, which is common for older literature.
Gymnotoceras and its relatives
Middle TriassicWhere Gymnotoceras and its relatives were recorded in the Middle Triassic.
Found in the same rock
184 taxa- Longobardites parvus23 sites
- Proarcestes bramantei21 sites
- Brackites vogdesi19 sites
- Billingsites cordeyi17 sites
- Silberlingitoides cricki13 sites
- Tropigastrites lahontanus12 sites
- Daonella americana11 sites
- Ussurites arthaberi11 sites
- Rieppelites boletzkyi8 sites
- Eutomoceras dalli7 sites
- Longobardites zsigmondyi7 sites
- Sageceras walteri7 sites
- Proarcestes balfouri6 sites
- Rieppelites shevyrevi6 sites
- Daonella sturi5 sites
- Dixieceras lawsoni5 sites
- Frechites nevadanus5 sites
- Frechites occidentalis5 sites
- Silberlingitoides clarkei5 sites
- Trematoceras elegans5 sites
- Anagymnites4 sites
- Aplococeras smithi4 sites
- Balatonites shoshonensis4 sites
- Constrigymnites robertsi4 sites
The Paleobiology Database records 173 sites for Gymnotoceras, 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
32 references- New Middle and Late Anisian (Middle Triassic) Ammonoid Faunas From Northwestern Nevada(USA): Taxonomy and Biochronology68
- Biostratigrafiya i ammonoidei verkhnego Aniziya severa Sibiri30
- Middle Triassic Molluscan Fossils of Biostratigraphic Significance from the Humboldt Range, Northwestern Nevada25
- The Triassic stratigraphy of Svalbard17
- Detailed biostratigraphy of Triassic deposits in the Lena lower reaches(northern Yakutia)9
- The Middle Triassic marine invertebrate faunas of North America8
- Ammonoids of the Shoshonensis Zone (Middle Anisian, Middle Triassic) from northwestern Nevada (USA)7
- Patterns of fossil distributions within their environmental context from the Middle Triassic in South Canyon, Central Nevada, USA5
- Canadian Triassic Ammonoid Faunas4
- Anisian (Middle Triassic) ammonoids from British Columbia (Canada): biochronological and palaeobiogeographical implications3
- The main features of the Geological structure of Barentsøya3
- The Sequence of Marine Triassic Faunas in Western Canada3
Each of the 210 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. 20 further references are not listed. 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
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
No picture of Gymnotoceras 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 Gymnotoceras, or no answer at all. This entry cannot say which.
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 itBeyrichitinae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hyatt 1877)