Protereisma arcuatum

Yale Peabody Museum · CC0 · via GBIF. 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
- ProtereismaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At most 6.8 million years on record.
Every occurrence read is dated to somewhere between 290.1 Mya and 283.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Protereisma arcuatum on record, most of them in the Permian. 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
5 occurrences- Permian100%
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
1 formation
- Wellington Formation · Cimarron Group5
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The named rock units Protereisma arcuatum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Protereisma arcuatum and its relatives
PermianWhere Protereisma arcuatum and its relatives were recorded in the Permian.
Found in the same rock
155 taxa- Artinska clara4 sites
- Artinska ovata4 sites
- Delopsocus elongatus4 sites
- Delopterum minutum4 sites
- Dichentomum tinctum4 sites
- Lemmatophora typa4 sites
- Liomopterum ornatum4 sites
- Lisca minuta4 sites
- Paleuthygramma acuta4 sites
- Parablattelytron rectum4 sites
- Permoraphidia americana4 sites
- Phenopterum elongatum4 sites
- Protereisma latum4 sites
- Protereisma permianum4 sites
- Apsidoneura flexa3 sites
- Asthenohymen affinis3 sites
- Asthenohymen dunbari3 sites
- Chelopterum peregrinum3 sites
- Delopsocus latus3 sites
- Elmoa trisecta3 sites
- Lecorium elongatum3 sites
- Misthodotes obtusus3 sites
- Parablattelytron elongatum3 sites
- Parablattelytron subincisum3 sites
The Paleobiology Database records 5 sites for Protereisma arcuatum, 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
4 references- The Lower Permian Insects of Kansas. Part 6: Delopteridae, Protelytroptera, Plectoptera and a New Collection of Protodonata, Odonata, Megasecoptera, Homoptera and Psocoptera2
- Lower Permian insects from Oklahoma part 2. Orders Ephemeroptera and Palaeodictyoptera1
- Kansas Permian Insects, Part 15: The Order Plectoptera (continued)1
- Types of Permian insects, Part II - Plectoptera1
Each of the 5 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 Protereisma arcuatum
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Protereisma arcuatum was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itProtereisma through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sellards 1907)