Pseudotrapezium groenlandicum

Pseudotrapezium groenlandicum

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
PseudotrapeziumPBDB
Diet
suspension feederPBDB, for Venerida
Life habit
infaunalPBDB, for Venerida
Motility
facultatively mobilePBDB, for Venerida
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 13 million years on record.

Every occurrence read is dated to somewhere between 149.2 Mya and 137.05 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Jurassic — about 3 of 6 occurrencesLate JurassicEarly Cretaceous — about 3 of 6 occurrencesEarly Cretaceous149–149 Mya — about 0.2 occurrences149–148 Mya — about 0.2 occurrences148–148 Mya — about 0.2 occurrences148–148 Mya — about 0.2 occurrences148–147 Mya — about 0.2 occurrences147–147 Mya — about 0.2 occurrences147–146 Mya — about 0.2 occurrences146–146 Mya — about 0.2 occurrences146–145 Mya — about 0.2 occurrences145–145 Mya — about 0.2 occurrences145–144 Mya — about 0.2 occurrences144–144 Mya — about 0.2 occurrences144–144 Mya — about 0.2 occurrences144–143 Mya — about 0.2 occurrences143–143 Mya — about 0.2 occurrences143–142 Mya — about 0.2 occurrences142–142 Mya — about 0.2 occurrences142–141 Mya — about 0.2 occurrences141–141 Mya — about 0.2 occurrences141–140 Mya — about 0.2 occurrences140–140 Mya — about 0.2 occurrences140–140 Mya — about 0.2 occurrences140–139 Mya — about 0.2 occurrences139–139 Mya — about 0.2 occurrences139–138 Mya — about 0.2 occurrences138–138 Mya — about 0.2 occurrences138–137 Mya — about 0.2 occurrences137–137 Mya — about 0.2 occurrences149.7 Mya136.6 Mya

6 occurrences of Pseudotrapezium groenlandicum 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

6 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

Agardhfjellet — 78.33°N, 15.80°E

Loading coastlines…

The named rock units Pseudotrapezium groenlandicum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Pseudotrapezium groenlandicum and its relatives

Late Jurassic

Where Pseudotrapezium groenlandicum and its relatives were recorded in the Late Jurassic.

Found in the same rock

30 taxa

The Paleobiology Database records 5 sites for Pseudotrapezium groenlandicum, 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

1 reference

Each of the 6 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Pseudotrapezium groenlandicum

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

No 3D scan of Pseudotrapezium groenlandicum 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 itPseudotrapezium through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Spath 1936