Mosasaurus lemonnieri

Macrophyseter · CC BY-SA 4.0 · via Wikidata/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
- MosasaurusPBDB
- Diet
- carnivorePBDB, for Mosasauridae
- Life habit
- aquaticPBDB, for Mosasauridae
- Motility
- actively mobilePBDB, for Osteichthyes
- Vision
- well-developedPBDB, for Mosasauridae
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Mosasaurus lemonnieri 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
9 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
2 formations
Loading coastlines…
The named rock units Mosasaurus lemonnieri has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Mosasaurus lemonnieri and its relatives
Late CretaceousWhere Mosasaurus lemonnieri and its relatives were recorded in the Late Cretaceous.
Found in the same rock
58 taxa- Elasmosauridae7 sites
- Enchodus elegans7 sites
- Plioplatecarpini7 sites
- Chelonioidea6 sites
- Crocodylomorpha6 sites
- Leiodon anceps6 sites
- Squalicorax pristodontus6 sites
- Teleostei6 sites
- Carcharias5 sites
- Ctenopristis5 sites
- Globidens5 sites
- Hypsobatis5 sites
- Mosasauridae5 sites
- Plicatoscyllium5 sites
- Rhinobatos5 sites
- Squalicorax5 sites
- Stephanodus5 sites
- Taphrosphyini5 sites
- Youssoubatis5 sites
- Cretalamna maroccana4 sites
- Myliobatiformes4 sites
- Plioplatecarpinae4 sites
- Prognathodon giganteus4 sites
- Rhombodus meridionalis4 sites
The Paleobiology Database records 8 sites for Mosasaurus lemonnieri, 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
4 references- The marine vertebrate faunas from the Late Cretaceous phosphates of Syria6
- The mosasaur collections of the Museum National d'Histoire Naturelle of Paris1
- Depredadores marinos (osteíctios, selacios y mosasaurios) en el Campaniense de la Cuenca Vasco-Cantábrica1
- Campanian and Maastrichtian mosasaurid reptiles from central Poland1
Each of the 9 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 Mosasaurus lemonnieri
- Source
- Wikidata/Commons
- Credit
- Macrophyseter
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Mosasaurus lemonnieri 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMosasaurus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dollo 1889