Tessarolax
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
- AporrhainaePBDB
- 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 66 million years on record.
The record covers at least 125.77 Mya to 59.24 Mya. No occurrence read is dated outside 132.6 Mya to 56 Mya.
63 occurrences of Tessarolax on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
63 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
22 formations
- Budden Canyon Formation13
- Atherfield Clay Formation · Lower Greensand Group6
- Sandgate Formation · Lower Greensand Group3
- Panoche Formation · Great Valley Group3
- Moreno Formation · Great Valley Group3
- Martinez Formation2
Loading coastlines…
The named rock units Tessarolax has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.
Tessarolax and its relatives
Late CretaceousWhere Tessarolax and its relatives were recorded in the Late Cretaceous.
Found in the same rock
805 taxa- Paleopsephaea sacramentica9 sites
- Euspira popenoei8 sites
- Igonoia stewarti8 sites
- Resatrix8 sites
- Anchura7 sites
- Cantharus occidentalis7 sites
- Glycymerita veatchii7 sites
- Gyrodes7 sites
- Semisolarium7 sites
- Senis wharburtoni7 sites
- Thetironia minor7 sites
- Venilicardia7 sites
- Cucullaea6 sites
- Natica6 sites
- Nucula6 sites
- Panopea6 sites
- Avellana5 sites
- Biplica obliqua5 sites
- Latiala heliaca5 sites
- Metacerithium5 sites
- Nanonavis breweriana5 sites
- Pinna robinaldina5 sites
- Pleurotomaria5 sites
- Pterotrigonia evansana5 sites
The Paleobiology Database records 60 sites for Tessarolax, 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
20 references- Pacific Slope of North America record of the Cretaceous aporrhaid gastropod Tessarolax: Evolutionary trends, mode of life, and paleobiogeography of the genus18
- Mollusca of the Cretaceous Bald Hills Formation of California9
- The stratigraphical palaeontology of the Lower Greensand8
- Upper Cretaceous of the Pacific Coast4
- The stratigraphy of the Atherfield Clay Formation (Lower Aptian, Lower Cretaceous) at the type and other localities in southern England3
- New and little-known gastropods from the Albian of the Mahajanga Basin, northwestern Madagascar2
- Les grès verts helvétiques (Aptien moyen-Albien supérieur) de Haute-Savoie, Valais et Vaud (Alpes occidentales franco-suisses)2
- Geology of the Petersfield district, Hampshire2
- Gastropoden-Faunen aus der höheren Unterkreide Nordwestdeutschlands [Late Early Cretaceous gastropods of Northwest Germany]2
- Die geologische Entwicklung von Süd-Mozambique seit der Unterkreide und die Ammoniten-Fauna von Unterkreide und Cenoman2
- Jura Vaudois et Neuchatelois2
- An ornithomimosaur from the Campanian Cedar District Formation (Nanaimo Group) of Denman Island, British Columbia, Canada1
Each of the 63 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. 8 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 content2
Picture of Tessarolax
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
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 itAporrhainae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1864)