Trigonostoma gemmatum

Trigonostoma gemmatum

via iDigBio · CC0 · 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
TrigonostomaPBDB
Diet
carnivorePBDB, for Cancellariidae
Life habit
epifaunalPBDB, for Cancellariidae
Motility
actively mobilePBDB, for Cancellariidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 48.07 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 32 of 32 occurrencesEocene48–48 Mya — about 0.1 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–45 Mya — about 0.1 occurrences45–45 Mya — about 0.1 occurrences45–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–43 Mya — about 0.1 occurrences43–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–41 Mya — about 0.4 occurrences41–41 Mya — about 3 occurrences41–40 Mya — about 3 occurrences40–40 Mya — about 3 occurrences40–39 Mya — about 3 occurrences39–39 Mya — about 3 occurrences39–39 Mya — about 3 occurrences39–38 Mya — about 3 occurrences38–38 Mya — about 3 occurrences38–38 Mya — about 2 occurrences48.6 Mya37.2 Mya

32 occurrences of Trigonostoma gemmatum on record, most of them in the Eocene. 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

32 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

5 formations

Cook Mountain — 32.04°N, 88.73°WCook Mountain — 31.12°N, 95.90°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 31.25°N, 95.72°WCook Mountain — 29.95°N, 97.14°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 30.64°N, 96.52°WLisbon — 31.76°N, 88.10°WLisbon — 31.84°N, 88.25°WLisbon — 31.50°N, 87.80°WLisbon — 31.53°N, 87.50°WLisbon — 31.82°N, 88.24°WLisbon — 31.55°N, 87.91°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.55°N, 87.91°WWeches — 30.67°N, 96.37°WCrockett — 30.67°N, 96.37°W

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The named rock units Trigonostoma gemmatum has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Trigonostoma gemmatum and its relatives

Eocene

Where Trigonostoma gemmatum and its relatives were recorded in the Eocene.

Found in the same rock

628 taxa

The Paleobiology Database records 29 sites for Trigonostoma gemmatum, 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

4 references

Each of the 32 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 Trigonostoma gemmatum

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Trigonostoma gemmatum 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 itTrigonostoma through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1833