Trifidarcula trifida
No picture of Trifidarcula trifida 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 Trifidarcula trifida, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GemmarculaPBDB
- Diet
- suspension feederPBDB, for Terebrataliidae
- Life habit
- low-level epifaunalPBDB, for Terebrataliidae
- Motility
- stationary, attachedPBDB, for Terebrataliidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 8.2 million years on record.
Every occurrence read is dated to somewhere between 121.4 Mya and 113.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Trifidarcula trifida on record, most of them in the Early Cretaceous. 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
6 occurrences- Early Cretaceous100%
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
- Sandgate Formation · Lower Greensand Group5
- Woburn Sand Formation · Lower Greensand Group1
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The named rock units Trifidarcula trifida has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trifidarcula trifida and its relatives
Early CretaceousWhere Trifidarcula trifida and its relatives were recorded in the Early Cretaceous.
Found in the same rock
59 taxa- Anglonautilus undulatus3 sites
- Arenaciarcula fittoni3 sites
- Ornithella3 sites
- Parahoplites3 sites
- Parahoplites nutfieldiensis3 sites
- Pleurotomaria3 sites
- Tropaeum subarcticum3 sites
- Aniabrochus comptonensis2 sites
- Cyrtothyris cantabridgiensis2 sites
- Cyrtothyris seeleyi2 sites
- Entolium orbiculare2 sites
- Gemmarcula2 sites
- Panopea2 sites
- Praelongithyris praelongiforma2 sites
- Rhombothyris extensa2 sites
- Rhynchonella2 sites
- Terebratulina2 sites
- Toxaster fittoni2 sites
- Barroisia1 site
- cf. Lamellirhynchia caseyi1 site
- Cidaris1 site
- Cretiscalpellum1 site
- Cucullaea1 site
- Cyclothyris latissima1 site
The Paleobiology Database records 6 sites for Trifidarcula trifida, 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
2 references- The stratigraphical palaeontology of the Lower Greensand4
- New species of Terebratella, from the Bargate Stone2
Each of the 6 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 Trifidarcula trifida 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 Trifidarcula trifida, or no answer at all. This entry cannot say which.
No 3D scan of Trifidarcula trifida was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itGemmarcula through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Meyer 1864)