Xenoschrammenum

Searched as Amphiblestrum. The Paleobiology Database treats Xenoschrammenum as the accepted name.

No picture of Xenoschrammenum was found. Wikipedia and iDigBio were searched and had none. Wikidata has a picture filed under this name, but nothing tied it to Xenoschrammenum itself, so it was not used. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Xenoschrammenum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SporadopylidaePBDB
Diet
suspension feederPBDB, for Lychniscosa
Life habit
epifaunalPBDB, for Lychniscosa
Motility
stationary, attachedPBDB, for Lychniscosa
Vision
blindPBDB, for Hexactinellida
Environment
marinePBDB, for Hexactinellida

Time the record covers

At least 153 million years on record.

The record covers at least 159 Mya to 5.333 Mya. No occurrence read is dated outside 161.5 Mya to 2.58 Mya.

Middle Jurassic — about 0 of 48 occurrencesLate Jurassic — about 22 of 48 occurrencesLate JurassicEarly Cretaceous — about 11 of 48 occurrencesEarly CretaceousLate Cretaceous — about 1 of 48 occurrencesLate CretaceousPaleocene — about 1 of 48 occurrencesEocene — about 1 of 48 occurrencesEoceneOligocene — about 2 of 48 occurrencesMiocene — about 8 of 48 occurrencesMiocenePliocene — about 2 of 48 occurrencesPleistocene — about 0 of 48 occurrences165–159 Mya — about 2 occurrences159–154 Mya — about 17 occurrences154–148 Mya — about 2 occurrences148–143 Mya — about 0.8 occurrences137–132 Mya — about 1 occurrence132–126 Mya — about 2 occurrences126–121 Mya — about 0.3 occurrences121–115 Mya — about 0.7 occurrences115–110 Mya — about 2 occurrences110–104 Mya — about 2 occurrences104–99 Mya — about 2 occurrences88–82 Mya — about 0.1 occurrences82–77 Mya — about 0.5 occurrences77–71 Mya — about 0.4 occurrences71–66 Mya — about 0.0 occurrences66–60 Mya — about 0.5 occurrences60–55 Mya — about 0.6 occurrences55–49 Mya — about 0.7 occurrences49–44 Mya — about 0.2 occurrences38–33 Mya — about 0.3 occurrences33–27 Mya — about 2 occurrences27–22 Mya — about 0.6 occurrences22–16 Mya — about 1.0 occurrences16–11 Mya — about 6 occurrences11–5.5 Mya — about 1 occurrence5.5–0 Mya — about 2 occurrences159 Mya5.333 Mya165 Mya0 Mya

48 occurrences of Xenoschrammenum 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

48 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

Jasna Gora — 50.07°N, 19.62°EJasna Gora — 50.42°N, 19.35°EZawodzie — 50.82°N, 19.13°EZawodzie — 50.47°N, 19.55°ERipley — 35.32°N, 88.42°WMarianna Limestone — 31.52°N, 87.33°WAquia — 40.35°N, 74.25°WMt Brown "E" Limestone — 43.02°S, 172.71°ENiebla Calcarenite — 37.35°N, 6.67°W

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The named rock units Xenoschrammenum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 occurrences have no formation on record, which is common for older literature.

Xenoschrammenum and its relatives

Late Jurassic

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

Found in the same rock

390 taxa

The Paleobiology Database records 25 sites for Xenoschrammenum, 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

15 references

Each of the 48 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. 3 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 content0

No picture of Xenoschrammenum was found. Wikipedia and iDigBio were searched and had none.

Wikidata has a picture filed under this name, but nothing tied it to Xenoschrammenum itself, so it was not used.

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

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Xenoschrammenum, or no answer at all. This entry cannot say which.

No 3D scan of Xenoschrammenum 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.

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

Keep going

What may have been alongside itSporadopylidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Schrammen 1937