Trigonia montanaensis
No picture of Trigonia montanaensis was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Trigonia montanaensis itself, so it was not used. 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 Trigonia montanaensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TrigoniaPBDB
- Diet
- suspension feederPBDB, for Trigoniidae
- Life habit
- shallow infaunalPBDB, for Trigoniidae
- Motility
- fast-movingPBDB, for Trigoniidae
- Vision
- blindPBDB, for Trigoniidae
- Environment
- marinePBDB, for Trigoniidae
Time the record covers
At least 15 million years on record.
The record covers at least 180.4 Mya to 165.3 Mya. No occurrence read is dated outside 182.9 Mya to 161.5 Mya.
60 occurrences of Trigonia montanaensis on record, most of them in the Middle Jurassic. 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
60 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
7 formations
- Carmel Formation25
- Twin Creek Limestone Formation13
- Sawtooth Formation5
- Arapien Shale Formation3
- Sundance Formation1
- Smithers Formation1
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The named rock units Trigonia montanaensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Trigonia montanaensis and its relatives
Middle JurassicWhere Trigonia montanaensis and its relatives were recorded in the Middle Jurassic.
Found in the same rock
96 taxa- Camptonectes23 sites
- Myacites (Pleuromya) subcompressa17 sites
- Camptonectes stygius14 sites
- Liostrea strigilecula14 sites
- Gastropoda13 sites
- Vaugonia13 sites
- Pinna10 sites
- Pholadomya8 sites
- Pronoella8 sites
- Pronoella uintahensis8 sites
- Crinoidea7 sites
- Astarte meeki6 sites
- Eocephalites primus6 sites
- Gryphaea planoconvexa fraterna6 sites
- Plagiostoma6 sites
- Astarte (Coelastarte) livingstonensis5 sites
- Megasphaeroceras rotundum5 sites
- Modiolus5 sites
- Astarte4 sites
- Grammatodon4 sites
- Isognomon4 sites
- Stemmatoceras4 sites
- Tylostoma4 sites
- Ammonoidea3 sites
The Paleobiology Database records 60 sites for Trigonia montanaensis, 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
9 references- Marine Jurassic Pelecypods From Central and Southern Utah28
- Twin Creek Limestone (Jurassic) in the Western Interior of the United States13
- Jurassic Trigoniid Bivalves from Canada and Western United States of America9
- Jurassic (Bathonian or Early Callovian) Ammonites from Alaska and Montana5
- Early Jurassic Bivalvia of western Canada. Part I. Subclasses Palaeotaxodonta, Pteriomorpha, and Isofilibranchia1
- Middle Jurassic strata link Wallowa, Olds Ferry, and Izee terranes in the accreted Blue Mountains island arc, northeastern Oregon1
- Middle Jurassic corals from the Wallowa terrane, west-central Idaho1
- Jurassic Bivalves from Wyoming and South Dakota: A study of feeding relationsips1
- Interpretations of the Marine Jurassic Fossil Record at Lower Slide Lake, Teton County, Wyoming1
Each of the 60 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 Trigonia montanaensis was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Trigonia montanaensis itself, so it was not used.
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 Trigonia montanaensis, or no answer at all. This entry cannot say which.
No 3D scan of Trigonia montanaensis 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 itTrigonia through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Meek 1873)