Trinacromerum bentonianum

A picture published with the record for Trinacromerum bentonianum. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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
TrinacromerumPBDB
Diet
carnivorePBDB, for Plesiosauria
Life habit
aquatic, depth=surfacePBDB, for Plesiosauria
Motility
actively mobilePBDB, for Plesiosauria
Environment
marinePBDB, for Plesiosauria

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 0 of 14 occurrencesLate Cretaceous — about 14 of 14 occurrencesLate Cretaceous101–100 Mya — about 0.2 occurrences100–100 Mya — about 0.2 occurrences100–99 Mya — about 0.2 occurrences99–99 Mya — about 0.2 occurrences99–99 Mya — about 0.2 occurrences99–98 Mya — about 0.2 occurrences98–98 Mya — about 0.2 occurrences98–97 Mya — about 0.2 occurrences97–97 Mya — about 0.2 occurrences97–97 Mya — about 0.2 occurrences97–96 Mya — about 0.2 occurrences96–96 Mya — about 0.2 occurrences96–96 Mya — about 0.2 occurrences96–95 Mya — about 0.2 occurrences95–95 Mya — about 0.2 occurrences95–94 Mya — about 0.2 occurrences94–94 Mya — about 0.2 occurrences94–94 Mya — about 0.8 occurrences94–93 Mya — about 1.0 occurrences93–93 Mya — about 1.0 occurrences93–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–92 Mya — about 1.0 occurrences92–91 Mya — about 1.0 occurrences91–91 Mya — about 1.0 occurrences91–90 Mya — about 1.0 occurrences90–90 Mya — about 1.0 occurrences90–90 Mya — about 0.7 occurrences101 Mya89.3 Mya

14 occurrences of Trinacromerum bentonianum 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

14 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

4 formations

Carlile Shale — 39.38°N, 98.54°WCarlile Shale — 38.87°N, 99.18°WCarlile Shale — 38.91°N, 98.81°WCarlile Shale — 39.10°N, 99.04°WCarlile Shale — 38.88°N, 97.37°WGreenhorn Limestone — 39.53°N, 97.66°WGreenhorn Limestone — 38.91°N, 98.53°WGreenhorn Limestone — 38.78°N, 99.22°WGreenhorn Limestone — 39.16°N, 98.33°WTropic Shale — 37.29°N, 112.69°WLake Waco — 31.60°N, 97.22°W

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The named rock units Trinacromerum bentonianum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Trinacromerum bentonianum and its relatives

Late Cretaceous

Where Trinacromerum bentonianum and its relatives were recorded in the Late Cretaceous.

Found in the same rock

3 taxa

The Paleobiology Database records 14 sites for Trinacromerum bentonianum, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

5 references

Each of the 14 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 content1

Picture of Trinacromerum bentonianum

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it

No 3D scan of Trinacromerum bentonianum was found in Smithsonian Open Access and Sketchfab.

MorphoSource 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 itTrinacromerum through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cragin 1888