Ismaridae
Ismaridae is a family of wasps belonging to the order Hymenoptera. It contains the singular relictual genus Ismarus, which has about 50 known species. All species for which the biology is known appear to be hyperparasitoids that parasitize Dryinidae.

John Curtis · 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
- DiaprioideaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 12 million years on record.
The record covers at least 113.2 Mya to 100.5 Mya. No occurrence read is dated outside 119.57 Mya to 93.9 Mya.
4 occurrences of Ismaridae on record. 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
4 occurrencesThese 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
1 formation
- Toriakeura Formation · Choshi Group1
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The named rock units Ismaridae 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.
Found in the same rock
51 taxa- Aptenoperissus etius1 site
- Aptenoperissus magnifemoris1 site
- Aptenoperissus pusillus1 site
- Arachnida1 site
- Araneae1 site
- Archaeoserphites engeli1 site
- Austroconops borkenti1 site
- Blattella lengleti1 site
- Buziniphilus antiquus1 site
- Cenomanoscelio pulcher1 site
- Cresogmus grimaldii1 site
- Cretapria tsukadai1 site
- Cupedidae1 site
- Daenerytanais maieuticus1 site
- Ecommocydromia difficilis1 site
- Embolemus ohmkuhnlei1 site
- Embolemus zherikhini1 site
- Falsiformicidae1 site
- Formicidae1 site
- Galloromma bezonnaisensis1 site
- Gallosphex cretaceus1 site
- Gerontoformica occidentalis1 site
- Glenrosa1 site
- Hymenoptera1 site
The Paleobiology Database records 4 sites for Ismaridae, 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
3 references- A new ismarid wasp (Hymenoptera, Diaprioidea) from mid-Cretaceous Kachin amber2
- Two parasitic wasps from Aptian (Lower Cretaceous) Choshi amber, Chiba, Japan1
- Zur Systematik und Palökologie harzkonservierter Arthropoda einer Taphozönose aus dem Cenomanium von NW-Frankreich1
Each of the 4 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 Ismaridae
- Source
- Wikipedia/Commons
- Credit
- John Curtis
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Ismaridae 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
- Source
- Wikipedia, “Ismaridae”
- 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 itDiaprioidea through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Thomson 1858)