Cryptochasma

Cryptochasma

via iDigBio · CC BY-NC-ND · via iDigBio. 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
GrammatodontinaePBDB
Diet
suspension feederPBDB, for Parallelodontidae
Life habit
low-level epifaunalPBDB, for Parallelodontidae
Motility
facultatively mobile, attachedPBDB, for Parallelodontidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 12 million years on record.

The record covers at least 113.2 Mya to 100.5 Mya. No occurrence read is dated outside 121.4 Mya to 93.9 Mya.

Early Cretaceous — about 3 of 4 occurrencesEarly CretaceousLate Cretaceous — about 1 of 4 occurrencesLate Cretaceous122–121 Mya — about 0.1 occurrences121–120 Mya — about 0.3 occurrences120–119 Mya — about 0.3 occurrences119–118 Mya — about 0.3 occurrences118–117 Mya — about 0.3 occurrences117–116 Mya — about 0.3 occurrences116–115 Mya — about 0.3 occurrences115–114 Mya — about 0.3 occurrences114–113 Mya — about 0.3 occurrences113–112 Mya — about 0.1 occurrences101–100 Mya — about 0.1 occurrences100–99 Mya — about 0.1 occurrences99–98 Mya — about 0.1 occurrences98–97 Mya — about 0.1 occurrences97–96 Mya — about 0.1 occurrences96–95 Mya — about 0.1 occurrences95–94 Mya — about 0.1 occurrences94–93 Mya — about 0.1 occurrences113.2 Mya100.5 Mya122 Mya93.3 Mya

4 occurrences of Cryptochasma on record, most of them in the Early 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

4 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

1 formation

Sandgate — 51.00°N, 0.85°WSandgate — 51.35°N, 2.08°W

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The named rock units Cryptochasma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Cryptochasma and its relatives

Early Cretaceous

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

Found in the same rock

94 taxa

The Paleobiology Database records 4 sites for Cryptochasma, 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

2 references

Each of the 4 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Cryptochasma

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Cryptochasma was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itGrammatodontinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Casey 1961