Tessarolax distorta
via iDigBio · CC BY · via iDigBio. 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
- TessarolaxPBDB
- Diet
- detritivorePBDB, for Aporrhaidae
- Life habit
- semi-infaunalPBDB, for Aporrhaidae
- Motility
- slow-movingPBDB, for Aporrhaidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 13 million years on record.
The record covers at least 85.7 Mya to 72.2 Mya. No occurrence read is dated outside 89.8 Mya to 66 Mya.
9 occurrences of Tessarolax distorta on record, most of them in the Late 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
9 occurrences- Late 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
6 formations
- Chico Formation2
- Forbes Formation · Asuncion Group1
- Funks Formation · Asuncion Group1
- Moreno Formation · Great Valley Group1
- Pigeon Point Formation1
- Cedar District Formation · Nanaimo Group1
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The named rock units Tessarolax distorta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Tessarolax distorta and its relatives
Late CretaceousWhere Tessarolax distorta and its relatives were recorded in the Late Cretaceous.
Found in the same rock
140 taxa- Biplica obliqua4 sites
- Desmophyllites diphylloides4 sites
- Glycymerita veatchii4 sites
- Acila (Truncacila) demessa3 sites
- Anchura falciformis3 sites
- Hauericeras3 sites
- Inoceramus subundatus3 sites
- Sycodes glabra3 sites
- Volutoderma averillii3 sites
- Amphidonte (Amphidonte) parasitica2 sites
- Atira ornatissima2 sites
- Baculites chicoensis2 sites
- Baculites inornatus2 sites
- Baculites occidentalis2 sites
- Calva (Calva) varians2 sites
- Caryocorbula traskii2 sites
- Clisocolus dubius2 sites
- Crassatella conradiana2 sites
- Cucullaea (Cyphoxis) truncata2 sites
- Cymbophora ashburnerii2 sites
- Cyprina denmanensis2 sites
- Dentalium (Entalis) whiteavesi2 sites
- Elimia veatchii2 sites
- Gaudryceras2 sites
The Paleobiology Database records 9 sites for Tessarolax distorta, 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
5 references- Upper Cretaceous of the Pacific Coast4
- Pacific Slope of North America record of the Cretaceous aporrhaid gastropod Tessarolax: Evolutionary trends, mode of life, and paleobiogeography of the genus2
- An ornithomimosaur from the Campanian Cedar District Formation (Nanaimo Group) of Denman Island, British Columbia, Canada1
- Paleogeographic implications of molluscan assemblages in the Upper Cretaceous (Campanian) Pigeon Point Formation, California1
- Description of the Cretaceous fossils1
Each of the 9 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 Tessarolax distorta
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Tessarolax distorta 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 itTessarolax through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gabb 1864