Eumorphocorystes

Eumorphocorystes is a genus of crab belonging to the Raninidae subfamily Notopodinae. Fossils of the genus have been found in the Late Cretaceous (Maastrichtian) Maastricht Formation of the Netherlands. Rathbun referred specimens from the Oligocene Stepovak Formation of Alaska to this genus.

Eumorphocorystes

via iDigBio · 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
NotopodinaePBDB
Diet
carnivorePBDB, for Decapoda
Life habit
semi-infaunalPBDB, for Raninoidia
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 38 million years on record.

The record covers at least 66 Mya to 27.3 Mya. No occurrence read is dated outside 72.2 Mya to 23.04 Mya.

Late Cretaceous — about 2 of 4 occurrencesLate CretaceousPaleocene — about 0 of 4 occurrencesEocene — about 0 of 4 occurrencesOligocene — about 2 of 4 occurrencesOligoceneMiocene — about 0 of 4 occurrences73–71 Mya — about 0.2 occurrences71–70 Mya — about 0.6 occurrences70–68 Mya — about 0.6 occurrences68–66 Mya — about 0.6 occurrences66–65 Mya — about 0.1 occurrences29–27 Mya — about 0.1 occurrences27–25 Mya — about 0.8 occurrences25–24 Mya — about 0.8 occurrences24–22 Mya — about 0.3 occurrences66 Mya27.3 Mya73 Mya22 Mya

4 occurrences of Eumorphocorystes on record. 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

2 formations

Stepovak — 55.37°N, 161.36°WMaastricht — 50.84°N, 5.69°E

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The named rock units Eumorphocorystes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Found in the same rock

8 taxa

The Paleobiology Database records 4 sites for Eumorphocorystes, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

3 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. 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 Eumorphocorystes

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Eumorphocorystes 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 itNotopodinae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Van Binkhorst 1857