Triopsidae

Uncredited · via Wikidata/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- Also called
- Tadpole shrimpPBDB
- Sits inside
- NotostracaPBDB
- Diet
- suspension feeder, detritivorePBDB, for Branchiopoda
- Life habit
- nektobenthicPBDB, for Branchiopoda
- Motility
- slow-movingPBDB, for Branchiopoda
- Vision
- well-developedPBDB, for Branchiopoda
- Environment
- marine,brackish,freshwaterPBDB, for Branchiopoda
Time the record covers
At least 312 million years on record.
The record covers at least 315.2 Mya to 2.58 Mya. No occurrence read is dated outside 323.4 Mya to 11.7 ka.
6 occurrences of Triopsidae on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group. 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- Carboniferous33%
- Permian17%
- Middle Jurassic33%
- Pleistocene17%
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
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The named rock units Triopsidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Triopsidae and its relatives
CarboniferousWhere Triopsidae and its relatives were recorded in the Carboniferous.
Found in the same rock
75 taxa- Lepidurus3 sites
- Czekanowskia2 sites
- Dinosauria2 sites
- Hepaticites2 sites
- Kulindadromeus zabaikalicus2 sites
- Paleoovoitia sp.2 sites
- Terrindusia2 sites
- ? Pyrenomycetidae indet.1 site
- Alisporites1 site
- Alisporites bilateralis1 site
- Alisporites similis1 site
- Allosauridae1 site
- Belinurus trilobitoides1 site
- Biretisporites1 site
- Botryococcus1 site
- Bryophyta1 site
- Carex1 site
- Carpolithes1 site
- Cenococcum geophilum1 site
- Cerastium1 site
- Chronomidae indet.1 site
- Cingulatisporites saevus1 site
- Cladocera1 site
- Classopollis classoides1 site
The Paleobiology Database records 6 sites for Triopsidae, 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- Jurassic dinosaurs of Transbaikalia and prospects of searching for them in Mongolia2
- New fossil arthropods (Notostraca and Insecta: Syntonopterida) in the Continental Middle Permian of Provence (Bas-Argens Basin, France)1
- Interglacial remains of caribou (Rangifer tarandus) and lemming (Dicrostonyx torquatus (?)) from North Greenland1
- The arthropod fauna of the Upper Carboniferous rocks of the Maritime Provinces1
- Die Arthropoden aus dem Carbon und Perm des Saar-Nahe-Pfalz-Gebietes1
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 Triopsidae
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Triopsidae 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 itNotostraca through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Keilhack 1909