Acentrophorus

Acentrophorus is an extinct genus of prehistoric freshwater and marine ray-finned fish from the Roadian to the Wuchiapingian of England, Germany (Kupferschiefer), Italy and Russia. There may also be a Triassic occurrence in Australia.

Acentrophorus

Ghedo · CC BY-SA 4.0 · 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
SemionotidaePBDB
Diet
durophage, carnivorePBDB, for Semionotiformes
Life habit
nektonicPBDB, for Semionotiformes
Motility
actively mobilePBDB, for Semionotiformes

Time the record covers

At least 22 million years on record.

The record covers at least 266.9 Mya to 244.4 Mya. No occurrence read is dated outside 277.3 Mya to 241.464 Mya.

Permian — about 30 of 31 occurrencesPermianEarly Triassic — about 0 of 31 occurrencesMiddle Triassic — about 1 of 31 occurrencesMiddle Triassic278–277 Mya — about 0.1 occurrences277–276 Mya — about 0.2 occurrences276–274 Mya — about 0.3 occurrences274–273 Mya — about 1 occurrence273–272 Mya — about 1 occurrence272–271 Mya — about 1 occurrence271–269 Mya — about 1 occurrence269–268 Mya — about 1 occurrence268–267 Mya — about 1 occurrence261–259 Mya — about 2 occurrences259–258 Mya — about 5 occurrences258–257 Mya — about 5 occurrences257–256 Mya — about 5 occurrences256–254 Mya — about 5 occurrences254–253 Mya — about 1 occurrence244–243 Mya — about 0.4 occurrences243–242 Mya — about 0.4 occurrences242–241 Mya — about 0.2 occurrences266.9 Mya244.4 Mya278 Mya240.7 Mya

31 occurrences of Acentrophorus on record, most of them in the Permian. 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

31 occurrences

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

8 formations

Raisby — 54.63°N, 1.61°WRaisby — 54.95°N, 1.45°WRaisby — 54.85°N, 1.47°WRaisby — 54.65°N, 1.56°WRaisby — 54.69°N, 1.52°WRaisby — 54.93°N, 1.41°WRaisby — 54.63°N, 1.66°WKupferschiefer — 52.23°N, 7.96°EKupferschiefer — 51.50°N, 11.57°EBaitugan — 55.74°N, 52.03°EBaitugan — 55.70°N, 51.74°EBaytugan — 56.01°N, 52.71°EAshfield Shale — 33.91°S, 151.19°EFord — 54.99°N, 1.38°WPechishchi — 55.78°N, 48.93°EVal Gardena — 46.56°N, 11.71°E

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The named rock units Acentrophorus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Acentrophorus and its relatives

Permian

Where Acentrophorus and its relatives were recorded in the Permian.

Found in the same rock

148 taxa

The Paleobiology Database records 26 sites for Acentrophorus, 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

12 references

Each of the 31 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 Acentrophorus

Credit
Ghedo
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

The description on this site

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 itSemionotidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Traquair 1877