Placoseris

No picture of Placoseris was found. Wikipedia and Wikidata were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Placoseris 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. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

Time the record covers

At least 48 million years on record.

The record covers at least 149.2 Mya to 100.5 Mya. No occurrence read is dated outside 152.21 Mya to 93.9 Mya.

Late Jurassic — about 1 of 27 occurrencesLate JurassicEarly Cretaceous — about 3 of 27 occurrencesEarly CretaceousLate Cretaceous — about 23 of 27 occurrencesLate Cretaceous153–151 Mya — about 0.3 occurrences151–149 Mya — about 0.7 occurrences149–147 Mya — about 0.0 occurrences137–135 Mya — about 0.4 occurrences135–133 Mya — about 0.5 occurrences133–131 Mya — about 0.1 occurrences123–121 Mya — about 0.1 occurrences121–119 Mya — about 0.4 occurrences119–117 Mya — about 0.4 occurrences117–115 Mya — about 0.4 occurrences115–113 Mya — about 0.4 occurrences113–111 Mya — about 0.2 occurrences111–109 Mya — about 0.1 occurrences101–99 Mya — about 6 occurrences99–97 Mya — about 7 occurrences97–95 Mya — about 7 occurrences95–93 Mya — about 3 occurrences149.2 Mya100.5 Mya153 Mya93 Mya

27 occurrences of Placoseris 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

27 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

7 formations

Korycany — 50.27°N, 14.48°EKorycany — 50.28°N, 14.33°EKorycany — 50.20°N, 14.43°EAltamira — 43.38°N, 4.22°WDölzschen — 51.03°N, 13.70°ELangshan — 33.45°N, 79.70°EBranderfleck — 47.63°N, 11.67°EMassenkalk — 48.89°N, 11.94°ESierra del Pozo — 37.85°N, 2.91°W

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The named rock units Placoseris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Found in the same rock

346 taxa

The Paleobiology Database records 7 sites for Placoseris, 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

10 references

Each of the 27 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 content0

No picture of Placoseris was found. Wikipedia and Wikidata were searched and had none.

iDigBio and GBIF were not searched: the Paleobiology Database does not place Placoseris 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.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

No 3D scan of Placoseris 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 itThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.