Dipteronotus
Dipteronotus is an extinct genus of marine stem-neopterygian ray-finned fish that existed during the Middle and Late Triassic epochs in what is now Europe and Morocco. As a typical feature, it had several ridge scales in front of its dorsal fin that created a spine-like structure.

Ghedoghedo · 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
- PerleididaePBDB
- Diet
- grazer, detritivorePBDB, for Perleididae
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 28 million years on record.
The record covers at least 243.43 Mya to 215.38 Mya. No occurrence read is dated outside 247 Mya to 211.18 Mya.
10 occurrences of Dipteronotus 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
10 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
8 formations
- Besano Formation2
- Otter Sandstone Formation · Sherwood Sandstone Group1
- Bromsgrove Sandstone Formation1
- Timezgadiouine Formation · Argana Group1
- Meride Formation1
- Prosanto Formation1
Loading coastlines…
The named rock units Dipteronotus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Dipteronotus and its relatives
Middle TriassicWhere Dipteronotus and its relatives were recorded in the Middle Triassic.
Found in the same rock
148 taxa- Archosauria3 sites
- Saurichthys3 sites
- Archaeosemionotus2 sites
- Ceratodus2 sites
- Cyclotosaurus2 sites
- Habroichthys minimus2 sites
- Luganoia lepidosteoides2 sites
- Nothosauria2 sites
- Peltoperleidus macrodontus2 sites
- Perleidus2 sites
- Ptycholepis barboi2 sites
- Acrodus1 site
- Actinistia1 site
- Aetheodontus besanensis1 site
- Airistagiz seegisi1 site
- Almasaurus habbazi1 site
- Altisolepis elongignathus1 site
- Amniota1 site
- Anomopteris mougeotii1 site
- Archosauriformes1 site
- Arganasuchus dutuiti1 site
- Askeptosaurus italicus1 site
- Atopocephala1 site
- Batrachotomus kupferzellensis1 site
The Paleobiology Database records 10 sites for Dipteronotus, 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
9 references- Basal ray-finned fishes (Osteichthyes; Actinopterygii) from the Middle Triassic of Monte San Giorgio (Canton Tessin, Switzerland)2
- Owenettids and procolophonids from the lower Keuper shed new light on the diversity of parareptiles in the German Middle Triassic1
- The Pelsonian (Anisian, Middle Triassic) fish assemblage from Monte Prà della Vacca/Kühwiesenkopf (Braies Dolomites, Italy)1
- Reptiles terrestres (Lepidosauromorpha et Traversodontidae) du Trias superieur de Medernach (G.-D. de Luxembourg) [Terrestrial reptiles (Lepidosauromorpha and Traversodontidae) from the Upper Triassic of Medernach (G. D. of Luxembourg)]1
- Benton and Spencer, 19951
- Die Prosanto Formation - eine fischreiche Fossil-Lagerstätte in der Mitteltrias der Silvretta-Decke (Kanton Graubünden, Schweiz)1
- Vertebrates from the Middle Triassic Otter Sandstone Formation of Devon1
- Dipteronotus olgiatii n. sp. (Actinopterygii, Perleidiformes) from the Kalksschieferzone of Ca' del Frate (N. Italy) (preliminary note)1
- Dipteronotus gibbosus (Actinopterygi, Chondrostei), nouveau colobodontidé du Trias supérieur continental marocain [Dipteronotus gibbosus (Actinopterygi, Chondrostei), new colobodontid from the Moroccan continental Upper Triassic]1
Each of the 10 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 Dipteronotus
- Source
- Wikipedia/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Dipteronotus 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 itPerleididae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Egerton 1854