Polytremacis

Polytremacis

via iDigBio · CC BY · 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
HelioporaceaPBDB
Diet
suspension feederPBDB, for Helioporacea
Life habit
epifaunalPBDB, for Helioporacea
Motility
stationary, attachedPBDB, for Helioporacea
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Helioporacea

Time the record covers

At least 94 million years on record.

The record covers at least 132.6 Mya to 37.71 Mya. No occurrence read is dated outside 157.9 Mya to 33.9 Mya.

Late Jurassic — about 1 of 47 occurrencesLate JurassicEarly Cretaceous — about 11 of 47 occurrencesEarly CretaceousLate Cretaceous — about 24 of 47 occurrencesLate CretaceousPaleocene — about 9 of 47 occurrencesEocene — about 2 of 47 occurrencesEoceneOligocene — about 0 of 47 occurrences160–156 Mya — about 0.1 occurrences156–152 Mya — about 0.2 occurrences152–147 Mya — about 0.2 occurrences147–143 Mya — about 0.2 occurrences143–139 Mya — about 0.2 occurrences139–135 Mya — about 0.2 occurrences135–130 Mya — about 0.1 occurrences126–122 Mya — about 4 occurrences122–117 Mya — about 4 occurrences117–113 Mya — about 0.6 occurrences113–109 Mya — about 3 occurrences104–100 Mya — about 0.3 occurrences100–96 Mya — about 4 occurrences96–92 Mya — about 3 occurrences92–87 Mya — about 3 occurrences87–83 Mya — about 3 occurrences83–79 Mya — about 3 occurrences79–74 Mya — about 3 occurrences74–70 Mya — about 3 occurrences70–66 Mya — about 3 occurrences66–62 Mya — about 3 occurrences62–57 Mya — about 4 occurrences57–53 Mya — about 2 occurrences53–49 Mya — about 0.5 occurrences49–44 Mya — about 0.1 occurrences40–36 Mya — about 0.5 occurrences36–31 Mya — about 0.5 occurrences132.6 Mya37.71 Mya160 Mya31 Mya

47 occurrences of Polytremacis 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

47 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

17 formations

Uhrov — 49.12°N, 18.45°ESimsima — 25.72°N, 55.82°ESimsima — 25.02°N, 55.78°EStreiteck — 47.50°N, 11.88°ESchrattenkalk — 47.43°N, 10.23°EGlen Rose Limestone — 29.92°N, 98.28°WGlen Rose Limestone — 29.88°N, 98.65°WPraznov — 49.10°N, 18.50°EAvella — 42.17°N, 14.17°EMural Limestone — 31.38°N, 109.75°WXiaqiongco — 31.75°N, 89.50°EGrodziszcze Conglomerates — 49.83°N, 19.93°ETisje — 11.03°N, 49.05°EHochmoos — 47.57°N, 13.50°EKonglomeratbank — 48.53°N, 24.63°EZapotitlan — 18.40°N, 97.43°WBranderfleck — 47.63°N, 11.67°EQahlah — 24.28°N, 55.83°ECozla — 47.33°N, 23.42°E

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The named rock units Polytremacis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 occurrences have no formation on record, which is common for older literature.

Polytremacis and its relatives

Late Cretaceous

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

Found in the same rock

494 taxa

The Paleobiology Database records 27 sites for Polytremacis, 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

32 references

Each of the 47 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. 20 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 Polytremacis

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Polytremacis 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 itHelioporacea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.