Cephaloxenus

Cephaloxenus is an extinct genus of prehistoric marine ray-finned fish that lived during the early Ladinian stage of the Middle Triassic epoch.

No picture of Cephaloxenus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Cephaloxenus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PeltopleuridaePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At most 2 million years on record.

Every occurrence read is dated to somewhere between 243.43 Mya and 241.464 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Triassic — about 5 of 5 occurrencesMiddle Triassic243–243 Mya — about 0.2 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–243 Mya — about 0.3 occurrences243–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–242 Mya — about 0.3 occurrences242–241 Mya — about 0.2 occurrences243.93 Mya240.96 Mya

5 occurrences of Cephaloxenus on record, most of them in the Middle Triassic. 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

5 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

2 formations

Besano — 45.89°N, 8.90°EBesano — 45.91°N, 8.94°E

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The named rock units Cephaloxenus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Cephaloxenus and its relatives

Middle Triassic

Where Cephaloxenus and its relatives were recorded in the Middle Triassic.

Found in the same rock

51 taxa

The Paleobiology Database records 4 sites for Cephaloxenus, 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

3 references

Each of the 5 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 content0

No picture of Cephaloxenus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Cephaloxenus, or no answer at all. This entry cannot say which.

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 itPeltopleuridae through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Brough 1939