Craniscus

Craniscus is a genus of small brachiopods. The shell is approximately round to square with one side rounded. The ventral valve is approximately flat and attached to the underground by the entire surface. The outside of the dorsal valve is more or less conical, the inside is divided by three ridges that join in the center.

Craniscus

Jean Charles Chenu · Public Domain · 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
CraniidaePBDB
Diet
suspension feederPBDB, for Craniida
Life habit
epifaunalPBDB, for Craniida
Motility
stationaryPBDB, for Craniida
Vision
blindPBDB, for Craniata
Environment
marinePBDB, for Craniata

Time the record covers

At least 154 million years on record.

The record covers at least 154.8 Mya to 774 ka. No occurrence read is dated outside 157.9 Mya to 129 ka.

Late Jurassic — about 1 of 16 occurrencesLate JurassicEarly Cretaceous — about 4 of 16 occurrencesEarly CretaceousLate Cretaceous — about 4 of 16 occurrencesLate CretaceousPaleocene — about 1 of 16 occurrencesEocene — about 2 of 16 occurrencesEoceneOligocene — about 0 of 16 occurrencesMiocene — about 1 of 16 occurrencesMiocenePliocene — about 0 of 16 occurrencesPleistocene — about 3 of 16 occurrences161–156 Mya — about 0.7 occurrences156–150 Mya — about 0.3 occurrences140–134 Mya — about 2 occurrences134–129 Mya — about 1.0 occurrences113–107 Mya — about 0.7 occurrences107–102 Mya — about 0.3 occurrences86–81 Mya — about 0.3 occurrences81–75 Mya — about 0.5 occurrences75–70 Mya — about 1 occurrence70–64 Mya — about 2 occurrences64–59 Mya — about 0.6 occurrences59–54 Mya — about 0.3 occurrences54–48 Mya — about 0.7 occurrences48–43 Mya — about 0.0 occurrences43–38 Mya — about 1 occurrence16–11 Mya — about 1 occurrence5.4–0 Mya — about 3 occurrences154.8 Mya774 ka161 Mya0 Mya

16 occurrences of Craniscus on record, most of them in the Early 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

16 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

4 formations

Koprivnice — 49.58°N, 18.12°ECrescent — 47.31°N, 123.53°WOlivetska Hora — 49.58°N, 18.12°EPinczow — 50.45°N, 20.80°E

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The named rock units Craniscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Craniscus and its relatives

Early Cretaceous

Where Craniscus and its relatives were recorded in the Early Cretaceous.

Found in the same rock

225 taxa

The Paleobiology Database records 16 sites for Craniscus, 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

Each of the 16 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 Craniscus

Credit
Jean Charles Chenu
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Craniscus was found in MorphoSource and Sketchfab.

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 itCraniidae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dall 1871