Michrystridium spp.

No picture of Michrystridium spp. was found. Wikipedia, Wikidata and Smithsonian Open Access were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Michrystridium spp. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.

Time the record covers

At least 448 million years on record.

The record covers at least 521 Mya to 72.2 Mya. No occurrence read is dated outside 538.8 Mya to 66 Mya.

Cambrian — about 1 of 81 occurrencesCambrianOrdovician — about 1 of 81 occurrencesOrdovicianSilurian — about 0 of 81 occurrencesDevonian — about 1 of 81 occurrencesDevonianCarboniferous — about 0 of 81 occurrencesPermian — about 35 of 81 occurrencesPermianEarly Triassic — about 9 of 81 occurrencesMiddle Triassic — about 0 of 81 occurrencesLate Triassic — about 0 of 81 occurrencesEarly Jurassic — about 1 of 81 occurrencesMiddle Jurassic — about 0 of 81 occurrencesLate Jurassic — about 0 of 81 occurrencesEarly Cretaceous — about 0 of 81 occurrencesLate Cretaceous — about 33 of 81 occurrencesPaleocene — about 0 of 81 occurrences548–532 Mya — about 0.4 occurrences532–515 Mya — about 0.6 occurrences450–434 Mya — about 1 occurrence384–368 Mya — about 1 occurrence302–286 Mya — about 1 occurrence286–270 Mya — about 4 occurrences270–253 Mya — about 24 occurrences253–237 Mya — about 15 occurrences204–188 Mya — about 1 occurrence106–89 Mya — about 31 occurrences89–73 Mya — about 0.9 occurrences73–57 Mya — about 1 occurrence521 Mya72.2 Mya548 Mya57 Mya

81 occurrences of Michrystridium spp. 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

81 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

9 formations

Zechstein Limestone — 50.83°N, 20.67°ECopper Shale — 50.83°N, 20.67°ELower Buntsandstein — 50.83°N, 20.67°ELower Anhydrate A1d — 50.83°N, 20.67°ECalvoerde — 52.12°N, 10.67°EVikinghøgda — 78.00°N, 23.00°EKessyusa — 71.33°N, 123.97°EGümüşali — 37.89°N, 36.00°ESnow Hill Island — 64.00°S, 57.51°W

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The named rock units Michrystridium spp. has been recovered from, largest first. Drawn where the rock is now, not where it formed. 55 occurrences have no formation on record, which is common for older literature.

Michrystridium spp. and its relatives

Permian

Where Michrystridium spp. and its relatives were recorded in the Permian.

Found in the same rock

251 taxa

The Paleobiology Database records 54 sites for Michrystridium spp., 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

13 references

Each of the 81 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. 1 further reference is 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 content0

No picture of Michrystridium spp. was found. Wikipedia, Wikidata and Smithsonian Open Access were searched and had none.

iDigBio and GBIF were not searched: the Paleobiology Database does not place Michrystridium spp. firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.

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 itFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.