Liotrigonia

Liotrigonia

via GBIF · CC0 · via GBIF. 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
TrigoniidaePBDB
Diet
suspension feederPBDB, for Trigoniidae
Life habit
shallow infaunalPBDB, for Trigoniidae
Motility
fast-movingPBDB, for Trigoniidae
Vision
blindPBDB, for Trigoniidae
Environment
marinePBDB, for Trigoniidae

Time the record covers

At least 44 million years on record.

The record covers at least 237 Mya to 192.9 Mya. No occurrence read is dated outside 241.464 Mya to 184.2 Mya.

Middle Triassic — about 1 of 31 occurrencesMiddle TriassicLate Triassic — about 0 of 31 occurrencesEarly Jurassic — about 30 of 31 occurrencesEarly Jurassic243–241 Mya — about 0.2 occurrences241–239 Mya — about 0.4 occurrences239–237 Mya — about 0.4 occurrences203–201 Mya — about 0.5 occurrences201–199 Mya — about 2 occurrences199–197 Mya — about 1 occurrence197–195 Mya — about 1 occurrence195–193 Mya — about 1 occurrence193–191 Mya — about 5 occurrences191–189 Mya — about 6 occurrences189–187 Mya — about 6 occurrences187–185 Mya — about 6 occurrences185–183 Mya — about 2 occurrences237 Mya192.9 Mya243 Mya183 Mya

31 occurrences of Liotrigonia on record, most of them in the Early 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

31 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

6 formations

Cape Stewart Beds — 70.46°N, 22.71°WCape Stewart Beds — 70.47°N, 22.64°WCape Stewart — 70.45°N, 22.65°WCape Stewart — 70.44°N, 22.65°WCape Stewart — 70.46°N, 22.33°WAlmstrom Creek — 68.23°N, 135.93°WXintianmen — 25.68°N, 113.23°EMurray Ridge — 68.03°N, 136.45°WPha Daeng — 18.33°N, 100.92°E

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The named rock units Liotrigonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Liotrigonia and its relatives

Early Jurassic

Where Liotrigonia and its relatives were recorded in the Early Jurassic.

Found in the same rock

135 taxa

The Paleobiology Database records 30 sites for Liotrigonia, 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

6 references

Each of the 31 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 Liotrigonia

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

No 3D scan of Liotrigonia 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 itTrigoniidae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cox 1952