Champsosaurus gigas

Larry Koester · CC BY 2.0 · 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
- ChampsosaurusPBDB
- Diet
- piscivorePBDB, for Champsosaurus
- Life habit
- aquaticPBDB, for Champsosaurus
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- freshwaterPBDB, for Champsosaurus
Time the record covers
At most 4.9 million years on record.
Every occurrence read is dated to somewhere between 60.9 Mya and 56 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Champsosaurus gigas on record, most of them in the Paleocene. 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
6 occurrences- Paleocene100%
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
Loading coastlines…
The named rock units Champsosaurus gigas has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Champsosaurus gigas and its relatives
PaleoceneWhere Champsosaurus gigas and its relatives were recorded in the Paleocene.
Found in the same rock
98 taxa- Anura2 sites
- Didymictis dellensis2 sites
- Ectocion osbornianus2 sites
- Emydidae2 sites
- Labidolemur soricoides2 sites
- Leptacodon2 sites
- Neoplagiaulax hazeni2 sites
- Neoplagiaulax hunteri2 sites
- Palaeoryctes2 sites
- Peradectes2 sites
- Phenacodus intermedius2 sites
- Piceoerpeton willwoodense2 sites
- Propalaeosinopa2 sites
- Scapherpeton2 sites
- Thryptacodon australis2 sites
- Aatotomus placochton1 site
- Adunator meizon1 site
- Aletodon gunnelli1 site
- Amphisbaenidae1 site
- Amphiumidae1 site
- Anguidae1 site
- Apheliscus nitidus1 site
- Arctocyon acrogenius1 site
- Arctocyon corrugatus1 site
The Paleobiology Database records 6 sites for Champsosaurus gigas, 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
5 references- A transitional Paleocene-Eocene reptile fauna from the Bighorn Basin, Wyoming2
- New choristoderes (Reptilia: Diapsida) from the Upper Cretaceous and Palaeocene, Alberta and Saskatchewan, Canada, a phylogenetic relationships of Choristodera1
- Flora and fauna of the Wannagan Creek Quarry: Late Paleocene of North America1
- Aspects of some anatomical structures of Champsosaurus (Reptilia: Eosuchia)1
- The lepidosaurian reptile Champsosaurus in North America1
Each of the 6 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 Champsosaurus gigas
- Source
- Wikidata/Commons
- Credit
- Larry Koester
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Champsosaurus gigas 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 itChampsosaurus through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Erickson 1972