Phosphorosaurus
Phosphorosaurus is an extinct genus of marine lizard belonging to the mosasaur family. Phosphorosaurus is classified within the Halisaurinae subfamily alongside the genera Pluridens, Eonatator, and Halisaurus.

Jony Cooper · 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
- HalisauriniPBDB
- Diet
- carnivorePBDB, for Mosasauridae
- Life habit
- aquaticPBDB, for Mosasauridae
- Motility
- actively mobilePBDB, for Osteichthyes
- Vision
- well-developedPBDB, for Mosasauridae
- Environment
- terrestrialPBDB, for Amniota
- Length
- 3 mWikidata
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Phosphorosaurus on record, most of them in the Late Cretaceous. 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
3 occurrences- Late Cretaceous100%
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
- Mocuio Formation1
- Craie de Ciply Formation1
- Hakobuchi Formation · Yezo Group1
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The named rock units Phosphorosaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Phosphorosaurus and its relatives
Late CretaceousWhere Phosphorosaurus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
37 taxa- Baculites1 site
- Baculites baculus1 site
- Baculites knorrianus1 site
- Calcarichelys1 site
- Carinodens belgicus1 site
- Chondrichthyes1 site
- Compressidens belgicus1 site
- Dinosauria1 site
- Diplomoceras cylindraceum1 site
- Elasmosauridae1 site
- Epapatelo otyikokolo1 site
- Euclastes1 site
- Globidens phosphaticus1 site
- Hadrosauroidea1 site
- Halisaurus1 site
- Hoploscaphites constrictus1 site
- Mollusca1 site
- Mosasauridae1 site
- Mosasaurus hoffmannii1 site
- Neancyloceras bipunctatum1 site
- Nostoceras1 site
- Osteichthyes1 site
- Pachydiscus (Pachydiscus)1 site
- Pachydiscus (Pachydiscus) neubergicus1 site
The Paleobiology Database records 3 sites for Phosphorosaurus, 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
3 references- A new halisaurine mosasaur (Squamata: Halisaurinae) from Japan: the first record in the western Pacific realm and the first documented insights into binocular vision in mosasaurs1
- Cretaceous amniotes from Angola: dinosaurs, pterosaurs, mosasaurs, plesiosaurs, turtles1
- Latest Cretaceous mosasaurs and lamniform sharks from Labirinta cave, Vratsa district (northwest Bulgaria): a preliminary note1
Each of the 3 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 Phosphorosaurus
- Source
- Wikipedia/Commons
- Credit
- Jony Cooper
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Phosphorosaurus 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 itHalisaurini through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dollo 1889