Neocrassina

Searched as Neocrassina (Neocrassina) subdepressa. The Paleobiology Database treats Neocrassina as the accepted name.

Neocrassina

via iDigBio · CC BY · 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
AstartidaePBDB
Diet
suspension feederPBDB, for Crassatelloidea
Life habit
infaunalPBDB, for Crassatelloidea
Motility
facultatively mobilePBDB, for Crassatelloidea
Vision
blindPBDB, for Crassatelloidea
Environment
marinePBDB, for Crassatelloidea

Time the record covers

At most 3.1 million years on record.

Every occurrence read is dated to somewhere between 157.9 Mya and 154.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Jurassic — about 2 of 2 occurrencesLate Jurassic158–158 Mya — about 0.0 occurrences158–158 Mya — about 0.1 occurrences158–158 Mya — about 0.1 occurrences158–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.0 occurrences158.4 Mya154.3 Mya

2 occurrences of Neocrassina on record, most of them in the Late Jurassic. 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

2 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

Korallenoolith — 52.13°N, 10.02°EWagad Sandstone — 23.49°N, 70.49°E

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

Neocrassina and its relatives

Late Jurassic

Where Neocrassina and its relatives were recorded in the Late Jurassic.

Found in the same rock

1,015 taxa

The Paleobiology Database records 155 sites for Neocrassina, 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 2 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 Neocrassina

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Neocrassina 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 itAstartidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fischer 1887