Neusticosaurus
Neusticosaurus, is an extinct genus of marine reptile belonging to the pachypleurosaurs, from Italy, Switzerland and Germany. Neusticosaurus was one of the smallest nothosaurs and probably fed on small fish. The type specimen is held at the Natural History Museum UK.

FunkMonk · CC BY-SA 3.0 · 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
- PachypleurosauridaePBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Sauropterygia
Time the record covers
At least 1.9 million years on record.
The record covers at least 241.464 Mya to 239.48 Mya. No occurrence read is dated outside 247 Mya to 237 Mya.
14 occurrences of Neusticosaurus 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
14 occurrences- Middle Triassic100%
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
10 formations
- Cassina Formation4
- Monte San Giorgio bituminous shales Formation1
- Erfurt Formation · Keuper Group1
- Perledo-Varenna Formation1
- Besano Formation1
- Lower Meride Limestone Formation1
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The named rock units Neusticosaurus 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.
Neusticosaurus and its relatives
Middle TriassicWhere Neusticosaurus and its relatives were recorded in the Middle Triassic.
Found in the same rock
72 taxa- Ticinolepis longaeva3 sites
- Ceresiosaurus2 sites
- Eoeugnathus bellottii2 sites
- Hybodus2 sites
- Lariosaurus2 sites
- Lariosaurus balsami2 sites
- Perleidus altolepis2 sites
- Saurichthys2 sites
- Saurichthys curionii2 sites
- Acrodus1 site
- Acronemus tuberculatus1 site
- Actinistia1 site
- Actinopterygii1 site
- Allolepidotus rueppelli1 site
- Aneurolepis1 site
- Archaeosemionotus1 site
- Archaeosemionotus connectens1 site
- Batrachotomus kupferzellensis1 site
- Belonorhynchus intermedius1 site
- Belonorhynchus stoppanii1 site
- Besanosaurus leptorhynchus1 site
- Bystrowiella schumanni1 site
- Caelatichthys nitens1 site
- Callistomordax kugleri1 site
The Paleobiology Database records 12 sites for Neusticosaurus, 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
12 references- New holostean fishes (Actinopterygii: Neopterygii) from the Middle Triassic of the Monte San Giorgio (Canton Ticino, Switzerland)3
- A Middle Triassic pachypleurosaur (Diapsida: Eosauropterygia) from a restricted carbonate ramp in the Western Carpathians (Gutenstein Formation, Fatric Unit): paleogeographic implications1
- Middle Triassic vertebrate remains from Rasa Village (Varese, northern Italy)1
- Co-occurrence of Neusticosaurus edwardsii and N. peyeri (Reptilia) in the Lower Meride Limestone (Middle Triassic, Monte San Giorgio)1
- Comparative osteology of Mastodonsaurus giganteus (Jaeger, 1828) from the Middle Triassic (Lettenkeuper: Longobardian) of Germany (Baden-Württemberg, Bayern, Thüringen)1
- The status of the sauropterygian reptile genera Ceresiosaurus, Lariosaurus, and Silvestrosaurus from the Middle Triassic of Europe1
- Pachypleurosaurs (Reptilia: Sauropterygia) from the Lower Muschelkalk, and a review of the Pachypleurosauroidea1
- Status of the pachypleurosauroid Psilotrachelosaurus toeplitschi Nopcsa (Reptilia, Sauropterygia), from the Middle Triassic of Austria1
- The pachypleurosaurids (Reptilia: Nothosauria) from the Middle Triassic of Monte San Giorgio (Switzerland) with the description of a new species1
- A fossil reptile embryo from the Middle Triassic of the Alps1
- Les poissons et les reptiles du Muschelkalk et du Rhetien de Basse-Provence1
- Sui fossili e sull'età degli schisti bituminosi triasici di Besano in Lombardia [On the fossils and the age of the Triassic bituminous schist of Besano in Lombardy]1
Each of the 14 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 content2
Picture of Neusticosaurus
- Source
- Wikipedia/Commons
- Credit
- FunkMonk
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Neusticosaurus edwardsii · pimuz
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 itPachypleurosauridae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Seeley 1882