Pteronisculus
Pteronisculus is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic and Middle Triassic epochs of the Triassic period worldwide.

Oilshale · CC0 · 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
- ActinopterygiiPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 6.7 million years on record.
The record covers at least 251.1 Mya to 244.4 Mya. No occurrence read is dated outside 251.902 Mya to 243.43 Mya.
34 occurrences of Pteronisculus on record, most of them in the Early 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
34 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
6 formations
- Wordie Creek Formation4
- Guanling Formation3
- Sulphur Mountain Formation2
- Spray River Formation1
- Middle Sakamena Formation · Sakamena Group1
- Candelaria Formation1
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The named rock units Pteronisculus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 occurrences have no formation on record, which is common for older literature.
Pteronisculus and its relatives
Early TriassicWhere Pteronisculus and its relatives were recorded in the Early Triassic.
Found in the same rock
89 taxa- Australosomus kochi6 sites
- Boreosomus gillioti5 sites
- Whiteia woodwardi5 sites
- Australosomus merlei4 sites
- Birgeria groenlandica4 sites
- Boreosomus piveteaui4 sites
- Laugia groenlandica4 sites
- Parasemionotus labordei4 sites
- Saurichthys4 sites
- Saurichthys (Eosaurichthys) madagascariensis4 sites
- Birgeria3 sites
- Boreosomus3 sites
- Hypophiceras3 sites
- Lingularia borealis3 sites
- Metophiceras subdemissum3 sites
- Perleidus3 sites
- Teffichthys madagascariensis3 sites
- Tompophiceras pascoei3 sites
- Watsonulus eugnathoides3 sites
- Bobasatrania groenlandica2 sites
- Boreosomus arcticus2 sites
- Broughia2 sites
- Jacobulus novus2 sites
- Ophiceras (Metophiceras) noenygaardi2 sites
The Paleobiology Database records 24 sites for Pteronisculus, 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
13 references- Studies on Triassic fishes from East Greenland. 1. Glaucolepis and Boreosomus8
- Etude complémentaire des poissons de l'Eotrias de Madagascar6
- Ammonoid stratigraphy and sedimentary evolution across the Permian–Triassic boundary in East Greenland3
- La faune ichthyologique de l'Eotrias du N. W. de Madagascar: le neurocrâne3
- Pteronisculus nielseni sp. nov., a new stem-actinopteran fish from the Middle Triassic of Luoping, Yunnan Province, China2
- An Early Triassic fish assemblage from British Columbia2
- New Triassic Palaeoniscids from Madagascar2
- Triassic Fishes from East Greenland collected by the Danish expeditions in 1929-19312
- Stensiö, 19212
- A new species of Pteronisculus from the Middle Triassic (Anisian) of Luoping, Yunnan, China, and phylogenetic relationships of early actinopterygian fishes1
- Marine Early Triassic Actinopterygii from the Candelaria Hills (Esmeralda County, Nevada, USA)1
- On Some Lower Triassic fishes from Ankilokaza, Madagascar1
Each of the 34 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. 1 further reference is 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 Pteronisculus
- Source
- Wikipedia/Commons
- Credit
- Oilshale
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Pteronisculus 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.
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 itActinopterygii through timeFormations of the Early TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. White 1933