Trigonalidae

Trigonalidae is a family of parasitic wasps in the suborder Apocrita. They are the only living members of the superfamily Trigonaloidea. Trigonalidae are divided into 2 subfamilies; Orthogonalinae and Trigonalinae. These wasps are extremely rare, but surprisingly diverse, with over 90 species in 16 genera, and are known from all parts of the world. It is possibly the sister group to all Aculeata.

Trigonalidae

Ilona Loser · CC BY-SA 3.0 · 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
TrigonalyoideaPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 85 million years on record.

The record covers at least 113.2 Mya to 27.3 Mya. No occurrence read is dated outside 121.4 Mya to 23.04 Mya.

Early Cretaceous — about 1 of 6 occurrencesEarly CretaceousLate Cretaceous — about 1 of 6 occurrencesLate CretaceousPaleocene — about 0 of 6 occurrencesEocene — about 3 of 6 occurrencesEoceneOligocene — about 1 of 6 occurrencesOligoceneMiocene — about 0 of 6 occurrences123–120 Mya — about 0.2 occurrences120–117 Mya — about 0.4 occurrences117–113 Mya — about 0.4 occurrences103–99 Mya — about 0.2 occurrences99–96 Mya — about 0.5 occurrences96–93 Mya — about 0.3 occurrences59–55 Mya — about 0.2 occurrences55–52 Mya — about 0.9 occurrences52–48 Mya — about 0.9 occurrences48–45 Mya — about 0.1 occurrences38–35 Mya — about 0.8 occurrences35–31 Mya — about 0.2 occurrences28–24 Mya — about 0.7 occurrences24–21 Mya — about 0.3 occurrences113.2 Mya27.3 Mya123 Mya21 Mya

6 occurrences of Trigonalidae on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

6 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

Gurvan-Eren — 46.38°N, 93.95°ERott — 50.75°N, 7.26°ETranquille — 50.13°N, 120.51°W

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The named rock units Trigonalidae 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.

Trigonalidae and its relatives

Eocene

Where Trigonalidae and its relatives were recorded in the Eocene.

Found in the same rock

1,306 taxa

The Paleobiology Database records 6 sites for Trigonalidae, 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

5 references

Each of the 6 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 Trigonalidae

Credit
Ilona Loser
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Trigonalidae 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.

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 itTrigonalyoidea through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cresson 1887