Anisopodoidea

The Anisopodidae are a small cosmopolitan family of gnat-like flies known as wood gnats or window-gnats, with 154 described extant species in 15 genera, and several described fossil taxa. Some species are saprophagous or fungivorous. They are mostly small to medium-sized flies, except the genera Olbiogaster and Lobogaster, which are large with spatulated abdomens. Their phylogenetic placement is controversial. They have been proposed to be the sister group to the higher flies, the Brachycera. Some authors consider this group to be four distinct families – Anisopodidae, Mycetobiidae, Olbiogastridae, and Valeseguyidae.

Anisopodoidea

Uncredited · Attribution · 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
BibionomorphaPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At least 232 million years on record.

The record covers at least 245.19 Mya to 12.8 Mya. No occurrence read is dated outside 247 Mya to 11.63 Mya.

Early Triassic — about 0 of 211 occurrencesMiddle Triassic — about 5 of 211 occurrencesLate Triassic — about 3 of 211 occurrencesLate TriassicEarly Jurassic — about 30 of 211 occurrencesEarly JurassicMiddle Jurassic — about 10 of 211 occurrencesLate Jurassic — about 72 of 211 occurrencesEarly Cretaceous — about 35 of 211 occurrencesEarly CretaceousLate Cretaceous — about 5 of 211 occurrencesLate CretaceousPaleocene — about 0 of 211 occurrencesEocene — about 41 of 211 occurrencesEoceneOligocene — about 3 of 211 occurrencesMiocene — about 7 of 211 occurrences252–244 Mya — about 3 occurrences244–235 Mya — about 2 occurrences235–227 Mya — about 0.0 occurrences227–219 Mya — about 1 occurrence219–211 Mya — about 1 occurrence211–203 Mya — about 0.7 occurrences203–195 Mya — about 5 occurrences195–186 Mya — about 1 occurrence186–178 Mya — about 23 occurrences178–170 Mya — about 1 occurrence170–162 Mya — about 9 occurrences162–154 Mya — about 16 occurrences154–146 Mya — about 42 occurrences146–137 Mya — about 20 occurrences137–129 Mya — about 2 occurrences129–121 Mya — about 4 occurrences121–113 Mya — about 24 occurrences105–97 Mya — about 3 occurrences97–89 Mya — about 2 occurrences64–56 Mya — about 0.1 occurrences56–48 Mya — about 6 occurrences48–40 Mya — about 3 occurrences40–31 Mya — about 33 occurrences31–23 Mya — about 2 occurrences23–15 Mya — about 5 occurrences15–6.9 Mya — about 2 occurrences245.19 Mya12.8 Mya252 Mya7 Mya

211 occurrences of Anisopodoidea on record, most of them in the Late Jurassic. 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

211 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

39 formations

Karabastau — 42.90°N, 70.00°EKarabastau — 42.69°N, 70.41°EKarabastau — 42.95°N, 69.92°ESharteg — 44.14°N, 95.78°EGlushkovo — 51.71°N, 116.93°EGlushkovo — 51.92°N, 117.62°EGurvan-Eren — 46.30°N, 93.80°EGurvan-Eren — 46.38°N, 93.95°EHaifanggou — 41.83°N, 120.78°ELaiyang — 36.78°N, 120.67°EUkurei — 52.31°N, 117.04°EDaohugou — 41.32°N, 119.24°EPosidonia Shale — 52.36°N, 10.59°EPosidonia Shale — 52.31°N, 10.62°EDzhil — 42.70°N, 77.20°EBouldnor — 50.74°N, 1.36°WItat — 56.17°N, 93.17°ELulworth — 51.08°N, 1.98°WLulworth — 50.60°N, 1.95°WCow Branch — 36.54°N, 79.67°WMadygen — 40.05°N, 70.21°EGrès à Voltzia — 48.72°N, 7.17°EGreen River — 39.46°N, 108.41°WGreen River — 41.55°N, 109.51°WCharmouth Mudstone — 50.72°N, 2.95°WHuachi-Huanhe — 35.22°N, 106.81°EHuachi-Huanhe — 34.76°N, 107.04°ETurga — 50.83°N, 116.19°ELaocun — 29.32°N, 119.07°EKishenehn — 48.40°N, 113.71°WArgiles d'lignite du Soissonnais — 49.33°N, 2.66°ELatah — 46.53°N, 116.79°W

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The named rock units Anisopodoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 further formations hold fewer occurrences each and are not listed. 62 occurrences have no formation on record, which is common for older literature.

Anisopodoidea and its relatives

Late Jurassic

Where Anisopodoidea and its relatives were recorded in the Late Jurassic.

Found in the same rock

3,960 taxa

The Paleobiology Database records 96 sites for Anisopodoidea, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

67 references

Each of the 211 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. 55 further references are 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 content1

Picture of Anisopodoidea

Credit
nobody named on the record
Licence
Attribution
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Anisopodoidea 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 itBibionomorpha through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Knab 1912