Allorisma

Allorisma

via iDigBio · CC0 · 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
EdmondiidaePBDB
Diet
suspension feederPBDB, for Pholadomyida
Life habit
infaunalPBDB, for Pholadomyida
Motility
facultatively mobilePBDB, for Pholadomyida
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 182 million years on record.

The record covers at least 419.62 Mya to 237 Mya. No occurrence read is dated outside 422.7 Mya to 227.3 Mya.

Silurian — about 2 of 67 occurrencesDevonian — about 0 of 67 occurrencesCarboniferous — about 22 of 67 occurrencesCarboniferousPermian — about 42 of 67 occurrencesPermianEarly Triassic — about 0 of 67 occurrencesMiddle Triassic — about 0 of 67 occurrencesLate Triassic — about 1 of 67 occurrences427–420 Mya — about 2 occurrences420–413 Mya — about 0.1 occurrences359–352 Mya — about 1 occurrence352–345 Mya — about 2 occurrences345–339 Mya — about 3 occurrences339–332 Mya — about 4 occurrences332–325 Mya — about 5 occurrences325–318 Mya — about 2 occurrences311–305 Mya — about 2 occurrences305–298 Mya — about 4 occurrences298–291 Mya — about 7 occurrences291–284 Mya — about 2 occurrences284–278 Mya — about 3 occurrences278–271 Mya — about 8 occurrences271–264 Mya — about 9 occurrences264–257 Mya — about 6 occurrences257–250 Mya — about 6 occurrences244–237 Mya — about 0.0 occurrences237–230 Mya — about 0.7 occurrences230–223 Mya — about 0.3 occurrences419.62 Mya237 Mya427 Mya223 Mya

67 occurrences of Allorisma on record, most of them in the Permian. 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

67 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

31 formations

Kaibab — 35.72°N, 111.47°WKaibab — 35.20°N, 111.57°WKaibab — 34.62°N, 111.09°WKaibab — 34.55°N, 111.24°WKaibab — 34.52°N, 111.33°WKaibab — 34.43°N, 110.59°WForaker Limestone — 39.27°N, 96.44°WForaker Limestone — 37.65°N, 96.46°WForaker Limestone — 37.81°N, 96.47°WForaker Limestone — 39.24°N, 95.47°WGrenola Limestone — 39.06°N, 96.28°WGrenola Limestone — 38.50°N, 96.35°WGrenola Limestone — 37.10°N, 96.61°WBaird — 40.79°N, 122.30°WBaird — 40.88°N, 122.25°WBellerophon — 46.56°N, 11.73°EBellerophon — 45.70°N, 11.22°ERedoak Hollow — 34.37°N, 97.34°WOnaga Shale — 39.28°N, 96.43°WOnaga Shale — 37.62°N, 96.38°WFalls City Limestone — 39.86°N, 95.60°WFalls City Limestone — 39.85°N, 95.63°WAgglomeratic Slate — 34.10°N, 74.88°EChhidru — 32.40°N, 72.15°EChhidru — 32.53°N, 72.20°EGlenshaw — 39.98°N, 81.73°WGlenshaw — 40.00°N, 81.81°WPottawatomie — 39.10°N, 94.57°WPottawatomie — 39.16°N, 94.48°WFlett — 63.88°N, 127.75°WOtter — 47.30°N, 111.37°WPrice — 36.75°N, 82.25°WLittle Valley — 36.75°N, 82.25°WPennington — 36.75°N, 82.25°WLoray — 39.21°N, 114.97°WZeandale Limestone — 38.16°N, 96.25°WGrenola — 38.37°N, 96.63°WIllipah — 38.65°N, 113.97°WBird Spring — 36.60°N, 114.79°WRustler — 31.63°N, 104.22°WCopacabana — 19.12°S, 64.70°W

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The named rock units Allorisma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 12 occurrences have no formation on record, which is common for older literature.

Allorisma and its relatives

Permian

Where Allorisma and its relatives were recorded in the Permian.

Found in the same rock

1,115 taxa

The Paleobiology Database records 63 sites for Allorisma, 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

36 references

Each of the 67 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. 24 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 content1

Picture of Allorisma

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itEdmondiidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. King 1844