Cretodus
Cretodus is an extinct genus of large mackerel sharks belonging to the proposed family Pseudoscapanorhynchidae. Cretodus lived during the Late Cretaceous, ranging from the Cenomanian to the Coniacian. The genus is well-known from strata deposited in the Western Interior Seaway, and from the Late Cretaceous of Europe, Africa, and possibly Asia. Cretodus is primarily represented in the fossil record by isolated teeth and vertebral centra, though a couple of associated dentitions and vertebral columns have been found.

Uncredited · 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
- PseudoscapanorhynchidaePBDB
- Diet
- carnivorePBDB, for Lamniformes
- Life habit
- nektonicPBDB, for Lamniformes
- Motility
- actively mobilePBDB, for Lamniformes
Time the record covers
At least 29 million years on record.
The record covers at least 113.2 Mya to 83.6 Mya. No occurrence read is dated outside 121.4 Mya to 72.2 Mya.
113 occurrences of Cretodus 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
113 occurrencesThese 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
42 formations
- Carlile Shale Formation · Colorado Group9
- Paluxy Formation · Trinity Group7
- Greenhorn Limestone Formation · Colorado Group6
- Aïn el Guettar Formation4
- Mancos Shale Formation4
- Carlile Formation3
Loading coastlines…
The named rock units Cretodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 further formations hold fewer occurrences each and are not listed. 35 occurrences have no formation on record, which is common for older literature.
Cretodus and its relatives
Late CretaceousWhere Cretodus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
572 taxa- Cretalamna appendiculata46 sites
- Squalicorax falcatus38 sites
- Cretoxyrhina mantelli34 sites
- Pseudohypolophus mcnultyi28 sites
- Scapanorhynchus raphiodon26 sites
- Squalicorax23 sites
- Haimirichia amonensis18 sites
- Chiloscyllium greeni17 sites
- Archaeolamna kopingensis16 sites
- Hybodus16 sites
- Ptychodus whipplei16 sites
- Pseudoscapanorhynchus compressidens15 sites
- Ptychodus anonymus14 sites
- Ptychotrygon triangularis14 sites
- Onchopristis dunklei13 sites
- Protolamna13 sites
- Rhinobatos13 sites
- Cenocarcharias tenuiplicatus12 sites
- Cretomanta canadensis12 sites
- Paranomotodon angustidens12 sites
- Plesiosauria12 sites
- Rhinobatos incertus12 sites
- Enchodus shumardi11 sites
- Johnlongia parvidens11 sites
The Paleobiology Database records 105 sites for Cretodus, 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
69 references- Cartilaginous fishes of the Trinity Group and related rocks (Lower Cretaceous) of north central Texas9
- Les sélaciens des terrains néocrétacés and paléocènes de Belgique and des contrées limitrophes. Eléments d'une biostratigraphie intercontinentale8
- New sharks and rays from the Cenomanian and Turonian of Charentes, France5
- Sélaciens du Crétacé (Albien-Maastrichtien) d'Angola4
- Catalogue des poissons fossiles du terrain Crétacé du Nord de la France4
- Additions aux faunes de sélaciens du Crétacé du Texas (Albien supérieur-Campanien)3
- Selachians from the Greenhorn Cyclothem ("Middle" Cretaceous: Cenomanian-Turonian), Black Mesa, Arizona, and the paleogeographic distribution of Late Cretaceous selachians3
- A middle Cenomanian euselachian assemblage from the Dunvegan Formation of northwestern Alberta2
- Fossil fishes from the basal Greenhorn Limestone (Upper Cretaceous, Late Cenomanian) in Russell County, Kansas2
- Les espèces et genres de poissons Sélaciens fossiles (Crétacé, Tertiaire) créés dans le Bassin d'Aquitaine ; recensement, taxonomie2
- Marine vertebrates from the Blue Hill Shale Member of the Carlile Shale (Upper Cretaceous: Middle Turonian) in Kansas2
- Late Cretaceous chondrichthyans from the Carlile Shale (Middle Turonian to Early Coniacian) of the Black Hills region, South Dakota and Wyoming2
Each of the 113 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. 57 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 content1
Picture of Cretodus
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Cretodus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Cretodus”
- 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 itPseudoscapanorhynchidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sokolov 1965