Laevitrigonia

Laevitrigonia is a genus of fossil clams, marine bivalve mollusks in the family Trigoniidae. This bivalve is sometimes preserved with mineralized soft-tissue.

Laevitrigonia

Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster). [1] · Public Domain · via Wikipedia/Commons. 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
LaevitrigoniinaePBDB
Diet
suspension feederPBDB, for Trigoniida
Life habit
infaunalPBDB, for Trigoniida
Motility
facultatively mobilePBDB, for Trigoniida
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 112 million years on record.

The record covers at least 184.2 Mya to 72.2 Mya. No occurrence read is dated outside 192.9 Mya to 66 Mya.

Early Jurassic — about 2 of 21 occurrencesEarly JurassicMiddle Jurassic — about 1 of 21 occurrencesMiddle JurassicLate Jurassic — about 3 of 21 occurrencesLate JurassicEarly Cretaceous — about 3 of 21 occurrencesEarly CretaceousLate Cretaceous — about 12 of 21 occurrencesLate CretaceousPaleocene — about 0 of 21 occurrences195–191 Mya — about 0.4 occurrences191–187 Mya — about 1 occurrence187–182 Mya — about 0.6 occurrences178–173 Mya — about 0.3 occurrences173–169 Mya — about 0.7 occurrences165–160 Mya — about 0.1 occurrences160–156 Mya — about 0.4 occurrences156–151 Mya — about 0.9 occurrences151–147 Mya — about 2 occurrences147–143 Mya — about 0.0 occurrences143–138 Mya — about 0.3 occurrences138–134 Mya — about 0.3 occurrences134–129 Mya — about 0.3 occurrences129–125 Mya — about 0.2 occurrences125–121 Mya — about 0.1 occurrences121–116 Mya — about 0.5 occurrences116–112 Mya — about 0.4 occurrences107–103 Mya — about 0.6 occurrences103–99 Mya — about 0.4 occurrences85–81 Mya — about 0.4 occurrences81–77 Mya — about 0.8 occurrences77–72 Mya — about 0.8 occurrences72–68 Mya — about 7 occurrences68–63 Mya — about 3 occurrences184.2 Mya72.2 Mya195 Mya63 Mya

21 occurrences of Laevitrigonia 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

21 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

8 formations

Lopez de Bertodano — 64.25°S, 56.75°WLopez de Bertodano — 64.17°S, 57.75°WLower Lias — 51.80°N, 1.88°WKahuitara Tuff — 44.24°S, 176.24°WOamaru — 46.45°S, 169.82°ENeptune Glacier — 71.75°S, 68.50°WBhuj — 23.80°N, 68.90°EKimmeridge Clay — 51.74°N, 1.31°WSanta Marta — 64.17°S, 57.75°W

Loading coastlines…

The named rock units Laevitrigonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Laevitrigonia and its relatives

Late Cretaceous

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

Found in the same rock

262 taxa

The Paleobiology Database records 19 sites for Laevitrigonia, 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

13 references

Each of the 21 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. 1 further reference is 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 content2

Picture of Laevitrigonia

Credit
Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster). [1]
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itLaevitrigoniinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Lebküchner 1932)