Centroscymnus

Centroscymnus is a genus of squaliform sleeper sharks in the family Somniosidae and of the phylum chordata.

Centroscymnus

Dr Tony Ayling · CC BY-SA 1.0 · via Wikidata/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
SomniosidaePBDB
Diet
carnivorePBDB, for Squaliformes
Life habit
nektonicPBDB, for Squaliformes
Motility
actively mobilePBDB, for Squaliformes

Time the record covers

At least 109 million years on record.

The record covers at least 125.77 Mya to 15.98 Mya. No occurrence read is dated outside 132.6 Mya to 13.82 Mya.

Early Cretaceous — about 1 of 20 occurrencesEarly CretaceousLate Cretaceous — about 13 of 20 occurrencesLate CretaceousPaleocene — about 2 of 20 occurrencesEocene — about 3 of 20 occurrencesEoceneOligocene — about 0 of 20 occurrencesMiocene — about 1 of 20 occurrencesMiocene135–131 Mya — about 0.3 occurrences131–127 Mya — about 0.6 occurrences127–123 Mya — about 0.1 occurrences86–81 Mya — about 2 occurrences81–77 Mya — about 3 occurrences77–73 Mya — about 3 occurrences73–69 Mya — about 3 occurrences69–65 Mya — about 3 occurrences65–61 Mya — about 2 occurrences49–44 Mya — about 1 occurrence44–40 Mya — about 1.0 occurrences40–36 Mya — about 0.4 occurrences36–32 Mya — about 0.6 occurrences20–16 Mya — about 0.2 occurrences16–11 Mya — about 0.8 occurrences125.77 Mya15.98 Mya135 Mya11 Mya

20 occurrences of Centroscymnus 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

20 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

11 formations

Northumberland — 49.55°N, 124.70°WNorthumberland — 49.54°N, 124.71°WNierental — 47.66°N, 14.86°ERødvig — 55.32°N, 12.44°EMishash — 30.87°N, 34.94°EMiretrain Marl — 43.57°N, 1.11°WBeckum — 51.79°N, 7.99°EStromberg — 51.82°N, 8.19°EJoe's River — 13.22°N, 59.55°WMarnes de Miretrain — 43.69°N, 1.13°WIseyama — 36.42°N, 138.30°ETor — 55.28°N, 12.44°E

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The named rock units Centroscymnus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Centroscymnus and its relatives

Late Cretaceous

Where Centroscymnus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

209 taxa

The Paleobiology Database records 20 sites for Centroscymnus, 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

13 references

Each of the 20 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. 1 further reference is 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 Centroscymnus

Credit
Dr Tony Ayling
Licence
CC BY-SA 1.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Centroscymnus coelolepis · MCZ:Ich:132510

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itSomniosidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Barbosa du Bocage and Brito Capello 1864