Stramentum

Searched as Squama. The Paleobiology Database treats Stramentum as the accepted name.

No picture of Stramentum was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Stramentum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
StramentinaePBDB
Diet
suspension feederPBDB, for Cirripedia
Life habit
epifaunalPBDB, for Cirripedia
Motility
stationary, attached, epibiontPBDB, for Cirripedia
Vision
limitedPBDB, for Cirripedia

Time the record covers

At least 206 million years on record.

The record covers at least 290.1 Mya to 83.6 Mya. No occurrence read is dated outside 293.52 Mya to 72.2 Mya.

Permian — about 5 of 56 occurrencesPermianEarly Triassic — about 0 of 56 occurrencesMiddle Triassic — about 0 of 56 occurrencesLate Triassic — about 1 of 56 occurrencesLate TriassicEarly Jurassic — about 0 of 56 occurrencesMiddle Jurassic — about 1 of 56 occurrencesLate Jurassic — about 1 of 56 occurrencesEarly Cretaceous — about 3 of 56 occurrencesEarly CretaceousLate Cretaceous — about 45 of 56 occurrencesLate Cretaceous298–290 Mya — about 0.9 occurrences290–283 Mya — about 0.5 occurrences283–275 Mya — about 0.5 occurrences275–267 Mya — about 0.0 occurrences267–260 Mya — about 1 occurrence260–252 Mya — about 2 occurrences252–244 Mya — about 0.0 occurrences244–237 Mya — about 0.0 occurrences237–229 Mya — about 0.2 occurrences229–221 Mya — about 0.2 occurrences221–214 Mya — about 0.2 occurrences214–206 Mya — about 0.2 occurrences206–198 Mya — about 0.1 occurrences175–168 Mya — about 0.1 occurrences168–160 Mya — about 1 occurrence160–152 Mya — about 0.5 occurrences152–144 Mya — about 0.2 occurrences114–106 Mya — about 3 occurrences106–98 Mya — about 1 occurrence98–91 Mya — about 25 occurrences91–83 Mya — about 18 occurrences83–75 Mya — about 0.7 occurrences75–68 Mya — about 0.3 occurrences290.1 Mya83.6 Mya298 Mya68 Mya

56 occurrences of Stramentum on record, most of them in the Late Cretaceous. 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

56 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

22 formations

Carlile Shale — 39.05°N, 99.03°WCarlile Shale — 39.41°N, 98.60°WCarlile Shale — 38.76°N, 99.53°WCarlile Shale — 38.17°N, 100.00°WCarlile Shale — 39.35°N, 98.74°WCarlile Shale — 38.61°N, 99.44°WCarlile Shale — 39.07°N, 99.14°WCarlile Shale — 39.90°N, 97.85°WCarlile Shale — 38.60°N, 99.47°WCarlile Shale — 38.38°N, 99.34°WNiobrara — 43.04°N, 97.26°WNiobrara — 38.69°N, 100.92°WNiobrara — 38.27°N, 104.61°WNiobrara — 39.61°N, 105.02°WNiobrara — 39.76°N, 105.22°WNiobrara — 38.80°N, 100.86°WNiobrara — 38.94°N, 100.45°WNiobrara — 39.89°N, 98.25°WNiobrara — 38.80°N, 100.00°WHilo — 3.67°N, 74.89°WPali — 23.30°N, 81.30°ETeplice — 50.46°N, 14.05°ETeplice — 50.40°N, 13.94°EAgua Nueva — 26.66°N, 100.01°WKarharbari — 23.34°N, 81.04°EBarakar — 23.90°N, 87.00°ERaniganj — 23.70°N, 86.30°EDzhaskoi Suite — 63.70°N, 118.10°EKamenka Suite — 49.10°N, 37.30°EEze-Aku — 6.00°N, 7.47°EBrochterbeck — 52.10°N, 8.30°EGreenhorn — 38.95°N, 98.52°WWest Melbury Marly Chalk — 50.86°N, 0.07°EHibernian Greensands — 54.76°N, 5.70°WCraie de Rouen — 49.60°N, 0.12°EAkrabou — 31.92°N, 4.88°WGulpen — 50.75°N, 5.65°EPeruc-Koryčany — 50.23°N, 14.09°EBila Hora — 50.22°N, 13.74°EBilá Hora — 50.08°N, 14.32°E

Loading coastlines…

The named rock units Stramentum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Stramentum and its relatives

Late Cretaceous

Where Stramentum and its relatives were recorded in the Late Cretaceous.

Found in the same rock

123 taxa

The Paleobiology Database records 48 sites for Stramentum, 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

20 references

Each of the 56 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. 8 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 Stramentum was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Stramentum, or no answer at all. This entry cannot say which.

No 3D scan of Stramentum 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 itStramentinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Logan 1897