Saurichthys
Saurichthys is an extinct genus of predatory ray-finned fish from the Triassic Period. It is the type genus of the family Saurichthyidae, and the most speciose and longest lasting genus in the family. This family also includes the Permian Eosaurichthys (China) and the Jurassic Saurorhynchus from Europe and North America, though it may be more appropriate to treat these as subgenera of Saurichthys, due to the genus Saurichthys otherwise being paraphyletic.

Jonathan Chen · 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
- SaurichthyidaePBDB
- Diet
- carnivorePBDB, for Saurichthyidae
- Life habit
- nektonicPBDB, for Saurichthyidae
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 88 million years on record.
The record covers at least 256.8 Mya to 168.2 Mya. No occurrence read is dated outside 264.28 Mya to 165.3 Mya.
239 occurrences of Saurichthys 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
239 occurrences- Permian1%
- Early Triassic29%
- Middle Triassic47%
- Late Triassic22%
- Early Jurassicunder 1%
- Middle Jurassicunder 1%
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
60 formations
- Cassina Formation25
- Kongressfjellet Formation16
- Besano Formation13
- Muschelkalk Formation10
- Westbury Formation · Penarth Group9
- Sulphur Mountain Formation7
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The named rock units Saurichthys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 36 further formations hold fewer occurrences each and are not listed. 72 occurrences have no formation on record, which is common for older literature.
Saurichthys and its relatives
Middle TriassicWhere Saurichthys and its relatives were recorded in the Middle Triassic.
Found in the same rock
937 taxa- Lissodus minimus24 sites
- Nemacanthus monilifer23 sites
- Hybodus19 sites
- Sargodon tomicus18 sites
- Actinopterygii17 sites
- Gyrolepis albertii17 sites
- Birgeria acuminata15 sites
- Colobodus14 sites
- Eosemionotus12 sites
- Ticinolepis longaeva12 sites
- Birgeria11 sites
- Polyacrodus cloacinus11 sites
- Pseudodalatias barnstonensis11 sites
- Gyrolepis9 sites
- Lepidotes9 sites
- Ceresiosaurus8 sites
- Archaeosemionotus7 sites
- Ceratodus7 sites
- Chondrichthyes7 sites
- Hybodontiformes7 sites
- Lissodus7 sites
- Pholidopleurus typus7 sites
- Ptycholepis barboi7 sites
- Acrodus6 sites
The Paleobiology Database records 187 sites for Saurichthys, 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
104 references- Triassic fishes from Spitzbergen, Part II28
- New holostean fishes (Actinopterygii: Neopterygii) from the Middle Triassic of the Monte San Giorgio (Canton Ticino, Switzerland)24
- An overview of the Middle Triassic actinopterygians from Alcover, Mont-ral and El Pinetell (Catalonia, Spain)14
- Die Gattung Saurichthys (Pisces, Actinopterygii) aus der mittleren Trias des Monte San Giorgio, Kanton Tessin12
- Ueber einige merkwürdige Fische aus dem Kupferschiefer und dem Muschelkalk8
- L'Infralias dans la Franche-Comté [The Lower Lias of Franche-Comté]7
- New evidence of Saurichthys from the Lower Triassic with an evaluation of early saurichthyid diversity6
- La faune Ichthyologique du Muschelkalk de la Catalogne5
- The Tikhvinskoye continental Early Triassic locality: geological setting, fauna and flora4
- Rhaetian (Upper Triassic) marine faunas from "Le Golfe du Luxembourg" in Belgium (preliminary note)4
- Etude complémentaire des poissons de l'Eotrias de Madagascar4
- New Saurichthyid Actinopterygian Fishes from the Anisian (Middle Triassic) of Southwestern China3
Each of the 239 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. 92 further references are 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 content2
Picture of Saurichthys
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Saurichthys justicias · ttup
The description on this site
- Source
- Wikipedia, “Saurichthys”
- 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 itSaurichthyidae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1834