Trisidos tortuosa

Linnaeus, 1758 · CC0 · via Wikidata/Commons. 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
- TrisidosPBDB
- Diet
- suspension feederPBDB, for Arcinae
- Life habit
- epifaunalPBDB, for Arcinae
- Motility
- stationary, attachedPBDB, for Arcinae
- Vision
- limitedPBDB, for Arcidae
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Arcidae
Time the record covers
At least 13 million years on record.
The record covers at least 15.98 Mya to 2.58 Mya. No occurrence read is dated outside 23.04 Mya to 11.7 ka.
6 occurrences of Trisidos tortuosa on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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- Miocene50%
- Pliocene33%
- Pleistocene17%
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
5 formations
- Baghmara Formation2
- Klasaman Formation1
- Chatti Mudstone Formation1
- Ormara & Jiwani Formation1
- Chengapara Formation1
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The named rock units Trisidos tortuosa has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trisidos tortuosa and its relatives
MioceneWhere Trisidos tortuosa and its relatives were recorded in the Miocene.
Found in the same rock
109 taxa- Anadara2 sites
- Anadara (Anadara) antiquata2 sites
- Anadara (Cunearca) ferruginea2 sites
- Anadara (Tegillarca) granosa2 sites
- Anomia2 sites
- Architectonica2 sites
- Cardium2 sites
- Chlamys2 sites
- Clementia (Clementia) papyracea2 sites
- Conus2 sites
- Corbula2 sites
- Diplodonta2 sites
- Dosinia2 sites
- Dosinia (Asa) pseudoargus2 sites
- Gyrineum2 sites
- Hemicardium2 sites
- Lutraria2 sites
- Mactrinula2 sites
- Mitridae2 sites
- Natica2 sites
- Nucula2 sites
- Nuculana2 sites
- Oliva2 sites
- Paphia2 sites
The Paleobiology Database records 3 sites for Trisidos tortuosa, 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
4 references- Neogene and Quaternary Mollusca from the Makran Coast, Pakistan2
- Fossil fauna from the Tertiary of Garo Hills, Assam2
- Miocene Molluscan biosratigraphy of the Garo Hills, Meghalaya, India1
- Neogene Mollusca from the Vogelkop (Bird's Head Peninsula), West Irian, New Guinea1
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 content1

Picture of Trisidos tortuosa
- Source
- Wikidata/Commons
- Credit
- Linnaeus, 1758
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Trisidos tortuosa 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 itTrisidos through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)