Trisopterus
Trisopterus is a genus of small cods, family Gadidae. They are native to the northeastern Atlantic Ocean including the Mediterranean Sea.

Uncredited · CC BY-SA 3.0 · via Wikipedia/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
- GadidaePBDB
- Diet
- carnivorePBDB, for Gadiformes
- Life habit
- nektonicPBDB, for Gadiformes
- Motility
- actively mobilePBDB, for Gadiformes
Time the record covers
At least 29 million years on record.
The record covers at least 41.03 Mya to 11.63 Mya. No occurrence read is dated outside 48.07 Mya to 5.333 Mya.
33 occurrences of Trisopterus on record, most of them in the Oligocene. 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
33 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
- Boom Clay Formation7
- Selsey Formation · Bracklesham Group4
- Earnley Formation · Bracklesham Group2
- Elmore Formation · Bracklesham Group2
- Gram Formation1
- Alzey Formation1
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The named rock units Trisopterus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.
Trisopterus and its relatives
OligoceneWhere Trisopterus and its relatives were recorded in the Oligocene.
Found in the same rock
628 taxa- Dasyatis jaekeli8 sites
- Rhynchobatus vincenti8 sites
- Scyliorhinus8 sites
- Squalus alsaticus8 sites
- Abdounia recticona7 sites
- Brachycarcharias lerichei7 sites
- Carcharias acutissimus7 sites
- Chelone7 sites
- Dentex nobilis7 sites
- Egertonia7 sites
- Jaekelotodus trigonalis7 sites
- Physogaleus secundus7 sites
- Premontreia (Oxyscyllium) gilberti7 sites
- Pterothrissus umbonatus7 sites
- Trachinus7 sites
- Trachinus biscissus7 sites
- Abdounia6 sites
- Abdounia lapierrei6 sites
- Aetobatus irregularis6 sites
- Aetomylaeus dixoni6 sites
- Aetomylaeus striatus6 sites
- Aves6 sites
- Burnhamia daviesi6 sites
- Conger6 sites
The Paleobiology Database records 32 sites for Trisopterus, 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- Les otolithes des téléostéens de l'oligo-miocène Belge13
- Biostratigraphie et poissons fossiles de la formation de l'Argile de Boom (Oligocène moyen du Bassin Belge)7
- The Selsey Division (Bracklesham Group) at Lee-on-the-Solent, Gosport, (Hants)5
- Das Sternberger Gestein un seine Artenzahl - Stand 19942
- Fossils from the Bracklesham Group exposed in the M27 Motorway excavations, Southampton, Hampshire2
- An exceptional concentration of marine fossils associated with wood-fall in the Terhagen Member (Boom Formation; Schelle, Belgium), Rupelian of the southern North Sea Basin1
- Die Alzey-Formation der klassichen Lokalitat Wlschberg bei Waldbockelheim (Rupelium, Oligozan, Mainzer Becken) - Ergebnisse neuer Grabungen1
- Stratigraphy and Biota of the Elmore Formation (Huntingbridge division, Bracklesham Group) at Lee-on-the-Solent, Gosport, Hampshire1
- Mesocetus argillarius sp.n. (Cetacea, Mysticeti) from Upper Miocene of Denmark, with remarks on the lower jaw and echolocation system in whale phylogeny1
Each of the 33 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 Trisopterus
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Trisopterus 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.
The description on this site
- Source
- Wikipedia, “Trisopterus”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGadidae through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1814