Mesopsychidae
Mesopsychidae is an extinct family of scorpionflies known from the Late Permian to Mid Cretaceous. It is part of Mesopsychoidea, a group of scorpionflies with siphonate proboscis. They are suggested to have been nectarivores, feeding off the liquid pollination drops and acting as pollinators for now extinct insect pollinated gymnosperms such as Bennettitales.

Lin et al. · CC BY-SA 4.0 · 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
- MesopsychoideaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 132 million years on record.
The record covers at least 254.14 Mya to 121.4 Mya. No occurrence read is dated outside 259.857 Mya to 113.2 Mya.
103 occurrences of Mesopsychidae on record, most of them in the Middle Triassic. 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
103 occurrences- Permian21%
- Early Triassicunder 1%
- Middle Triassic33%
- Late Triassic17%
- Early Jurassic6%
- Middle Jurassic7%
- Late Jurassic8%
- Early Cretaceous6%
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
29 formations
- Madygen Formation16
- Yanchang Formation15
- Croudace Bay Formation · Newcastle Coal Measures Group10
- Blackstone Formation · Ipswich Coal Measures Group8
- Daohugou Formation7
- Sulyukta Formation5
Loading coastlines…
The named rock units Mesopsychidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 further formations hold fewer occurrences each and are not listed. 8 occurrences have no formation on record, which is common for older literature.
Mesopsychidae and its relatives
Middle TriassicWhere Mesopsychidae and its relatives were recorded in the Middle Triassic.
Found in the same rock
2,584 taxa- Mesopsyche triareolata5 sites
- Austroidelia asiatica4 sites
- Austroidelia nervosa4 sites
- Costatoviblatta aenigmatosa4 sites
- Gorochovia individua4 sites
- Kennedya carpenteri4 sites
- Mesoidelia faceta4 sites
- Orthophlebiidae4 sites
- Osmylopsychops spillerae4 sites
- Parastenaropodites fluxa4 sites
- Parastenaropodites longiuscula4 sites
- Prochoristella4 sites
- Prochoristella longa4 sites
- Protoblattogryllus variabilis4 sites
- Thuringoblatta sogdianensis4 sites
- Anaxyelidae3 sites
- Asiocula lima3 sites
- Baharellus madygensis3 sites
- Beaconiella cincta3 sites
- Beaconiella pulchra3 sites
- Blattodea3 sites
- Brachysyntexis3 sites
- Cephalosyne capitata3 sites
- Cladophlebia parvula3 sites
The Paleobiology Database records 55 sites for Mesopsychidae, 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
45 references- Fossil Scorpionflies of the "Suborder" Paratrichoptera (Insecta: Mecoptera)10
- Fossil mecopteroid insects from the Upper Permian of New South Wales8
- New Triassic Scorpionflies (Insecta, Mecoptera)6
- A new genus of Mesopsychidae from the late Middle Triassic Tongchuan entomofauna and its taxonomic and palaeogeographic implications5
- Liassic insects from Shurab and Kisyl-Kiya, Part I, Various orders except Blattodea and Coleoptera5
- The Mesopsychidae (Mecoptera) of the Queensland Triassic4
- The earliest Mesopsychidae and revision of the family Mesopanorpodidae (Mecoptera)4
- Midtriassic new genera and species of Mesopanorpodidae (Insecta, Mecoptera) from Shaanxi, China4
- The fossil record of long-proboscid nectarivorous insects3
- New data from the Middle Jurassic of China shed light on the phylogeny and origin of the proboscis in the Mesopsychidae (Insecta: Mecoptera)3
- A probable pollination mode before angiosperms: Eurasian long-proboscid scorpionflies3
- Permian insects from the Beaufort Group of Natal, South Africa3
Each of the 103 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. 33 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 Mesopsychidae
- Source
- Wikipedia/Commons
- Credit
- Lin et al.
- Licence
- CC BY-SA 4.0
- 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 itMesopsychoidea through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Tillyard 1917