Eryma

Eryma is a genus of fossil lobster-like crustaceans, containing 44 species. The oldest known species was discovered in non-marine deposits from the late Triassic Chinle Formation located in the Petrified Forest National Park, Arizona. Two other species were discovered in the Solnhofen Limestone in Germany.

Eryma

Ra'ike (see also: de:Benutzer:Ra'ike ) · CC BY-SA 3.0 · via Wikipedia/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
EryminaePBDB
Diet
carnivorePBDB, for Decapoda
Life habit
infaunalPBDB, for Erymidae
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 181 million years on record.

The record covers at least 254.14 Mya to 72.2 Mya. No occurrence read is dated outside 259.857 Mya to 66 Mya.

Permian — about 2 of 99 occurrencesEarly Triassic — about 0 of 99 occurrencesMiddle Triassic — about 0 of 99 occurrencesLate Triassic — about 0 of 99 occurrencesEarly Jurassic — about 17 of 99 occurrencesEarly JurassicMiddle Jurassic — about 23 of 99 occurrencesLate Jurassic — about 46 of 99 occurrencesLate JurassicEarly Cretaceous — about 7 of 99 occurrencesEarly CretaceousLate Cretaceous — about 5 of 99 occurrencesLate CretaceousPaleocene — about 0 of 99 occurrences264–257 Mya — about 0.5 occurrences257–250 Mya — about 2 occurrences203–197 Mya — about 3 occurrences197–190 Mya — about 4 occurrences190–183 Mya — about 7 occurrences183–176 Mya — about 2 occurrences176–170 Mya — about 5 occurrences170–163 Mya — about 12 occurrences163–156 Mya — about 28 occurrences156–149 Mya — about 13 occurrences149–143 Mya — about 10 occurrences143–136 Mya — about 0.9 occurrences136–129 Mya — about 1 occurrence129–123 Mya — about 2 occurrences123–116 Mya — about 0.9 occurrences116–109 Mya — about 0.7 occurrences109–102 Mya — about 0.5 occurrences102–96 Mya — about 0.9 occurrences96–89 Mya — about 0.3 occurrences76–69 Mya — about 2 occurrences69–62 Mya — about 2 occurrences254.14 Mya72.2 Mya264 Mya62 Mya

99 occurrences of Eryma 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

99 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

26 formations

Oxford Clay — 51.75°N, 1.18°WOxford Clay — 52.33°N, 0.09°WLiegende Bankkalk — 48.12°N, 8.87°ESolnhofen — 48.90°N, 11.18°ESolnhofen — 48.91°N, 11.14°EEffinger Schichten — 47.26°N, 7.52°ETerrain à Chailles — 47.54°N, 6.05°ETerrain à Chailles — 47.56°N, 6.03°ETerrain à Chailles — 47.62°N, 6.09°EOpalinuston — 47.43°N, 8.15°EOpalinuston — 47.37°N, 7.78°EBorden Island — 78.38°N, 110.68°WBorden Island — 78.42°N, 110.97°WPortland Limestone — 50.55°N, 2.43°WOpalinus Clay — 47.45°N, 8.17°EOpalinus Clay — 47.33°N, 7.84°ERipley — 35.09°N, 88.53°WRipley — 31.72°N, 85.13°WRio Mayer — 47.95°S, 72.12°WLombardische Kieselkalk — 46.00°N, 9.08°EZechstein — 51.49°N, 6.55°EPeedee — 35.24°N, 77.57°WFernie — 51.74°N, 115.54°WStump — 40.41°N, 109.23°WCalcaires à Rhynchonelles — 47.88°N, 4.52°ECoon Creek — 34.39°N, 88.89°WMarno-Calcaires à Oolites Ferrugineuses — 47.89°N, 4.51°ENakanosawa — 37.69°N, 140.91°EMarnes de Villerville — 49.40°N, 0.14°EStramberk — 49.59°N, 18.12°EAssise des Carreaux — 48.58°N, 0.40°EBenassal — 40.27°N, 0.24°E

Loading coastlines…

The named rock units Eryma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 further formations hold fewer occurrences each and are not listed. 47 occurrences have no formation on record, which is common for older literature.

Eryma and its relatives

Late Jurassic

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

Found in the same rock

498 taxa

The Paleobiology Database records 62 sites for Eryma, 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

44 references

Each of the 99 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. 32 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 Eryma

Credit
Ra'ike (see also: de:Benutzer:Ra'ike )
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
Timbert
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.

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 itEryminae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Von Meyer 1840