Cremnoceramus

Cremnoceramus

Uncredited · 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
InoceramidaePBDB
Diet
suspension feederPBDB, for Pteriomorphia
Life habit
epifaunalPBDB, for Pteriomorphia
Motility
facultatively mobilePBDB, for Pteriomorphia
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 17 million years on record.

The record covers at least 89.8 Mya to 72.2 Mya. No occurrence read is dated outside 93.9 Mya to 66 Mya.

Late Cretaceous — about 60 of 60 occurrencesLate CretaceousPaleocene — about 0 of 60 occurrences94–93 Mya — about 2 occurrences93–93 Mya — about 4 occurrences93–92 Mya — about 4 occurrences92–91 Mya — about 4 occurrences91–90 Mya — about 5 occurrences90–89 Mya — about 9 occurrences89–88 Mya — about 9 occurrences88–87 Mya — about 9 occurrences87–86 Mya — about 9 occurrences86–85 Mya — about 0.8 occurrences85–84 Mya — about 0.3 occurrences84–83 Mya — about 0.2 occurrences83–82 Mya — about 0.2 occurrences82–81 Mya — about 0.2 occurrences81–80 Mya — about 0.2 occurrences80–79 Mya — about 0.2 occurrences79–78 Mya — about 0.2 occurrences78–77 Mya — about 0.2 occurrences77–76 Mya — about 0.2 occurrences76–75 Mya — about 0.2 occurrences75–74 Mya — about 0.2 occurrences74–73 Mya — about 0.2 occurrences73–72 Mya — about 0.2 occurrences72–71 Mya — about 0.3 occurrences71–70 Mya — about 0.3 occurrences70–69 Mya — about 0.3 occurrences69–68 Mya — about 0.3 occurrences68–67 Mya — about 0.3 occurrences67–66 Mya — about 0.3 occurrences66–65 Mya — about 0.1 occurrences89.8 Mya72.2 Mya94.5 Mya65.4 Mya

60 occurrences of Cremnoceramus on record, most of them in the Late Cretaceous. 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

60 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

12 formations

Niobrara — 38.25°N, 104.60°WNiobrara — 36.04°N, 104.62°WNiobrara — 36.35°N, 104.60°WNiobrara — 38.84°N, 104.88°WCotinguiba — 10.76°S, 37.07°WCotinguiba — 10.86°S, 37.15°WLewes Nodular Chalk — 50.70°N, 3.10°WLewes Nodular Chalk — 50.75°N, 2.97°WEl Zadorra — 42.88°N, 2.20°WMancos Shale — 40.76°N, 108.89°WMancos Shale — 38.77°N, 111.39°WMarias River Shale — 47.93°N, 110.47°WCraie de Villedieu — 45.00°N, 0.37°EArnager Limestone — 55.05°N, 14.78°EBad Heart — 55.48°N, 118.20°WAustin Chalk — 29.32°N, 99.47°WFrontier — 42.83°N, 108.73°WAnaipadi — 11.09°N, 78.96°E

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The named rock units Cremnoceramus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 31 occurrences have no formation on record, which is common for older literature.

Cremnoceramus and its relatives

Late Cretaceous

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

Found in the same rock

315 taxa

The Paleobiology Database records 44 sites for Cremnoceramus, 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

24 references

Each of the 60 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. 12 further references are 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 Cremnoceramus

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itInoceramidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Heinz 1932