Trigonidiidae

The Trigonidiidae are a family of crickets consisting of two subfamilies:Subfamily Nemobiinae Saussure, 1877 – wood crickets or ground crickets Subfamily Trigonidiinae Saussure, 1874 – sword-tail crickets

Trigonidiidae

Katja Schulz from Washington, D. C., USA · CC BY 2.0 · 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
GrylloideaPBDB
Diet
herbivorePBDB, for Ensifera
Life habit
ground dwelling, gregariousPBDB, for Ensifera
Motility
fast-movingPBDB, for Ensifera
Vision
well-developedPBDB, for Ensifera
Environment
terrestrialPBDB, for Ensifera

Time the record covers

At least 93 million years on record.

The record covers at least 93.9 Mya to 11.7 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.

Early Cretaceous — about 0 of 28 occurrencesLate Cretaceous — about 9 of 28 occurrencesLate CretaceousPaleocene — about 0 of 28 occurrencesEocene — about 9 of 28 occurrencesEoceneOligocene — about 0 of 28 occurrencesMiocene — about 7 of 28 occurrencesMiocenePliocene — about 0 of 28 occurrencesPleistocene — about 0 of 28 occurrences103–99 Mya — about 2 occurrences99–96 Mya — about 5 occurrences96–92 Mya — about 2 occurrences51–48 Mya — about 3 occurrences48–44 Mya — about 2 occurrences44–41 Mya — about 0.6 occurrences41–38 Mya — about 0.3 occurrences38–34 Mya — about 3 occurrences34–31 Mya — about 0.2 occurrences21–17 Mya — about 4 occurrences17–14 Mya — about 3 occurrences3.4–0 Mya — about 3 occurrences93.9 Mya11.7 ka103 Mya0 Mya

28 occurrences of Trigonidiidae on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group. 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

28 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

3 formations

Green River — 39.54°N, 108.12°WGreen River — 39.53°N, 107.95°WBouldnor — 50.74°N, 1.36°WLa Toca — 19.55°N, 70.61°W

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The named rock units Trigonidiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 occurrences have no formation on record, which is common for older literature.

Trigonidiidae and its relatives

Late Cretaceous

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

Found in the same rock

1,256 taxa

The Paleobiology Database records 18 sites for Trigonidiidae, 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

12 references

Each of the 28 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 Trigonidiidae

Credit
Katja Schulz from Washington, D. C., USA
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itGrylloidea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Saussure 1874)