Otodontidae
Otodontidae is an extinct family of sharks belonging to the order Lamniformes. Its members have been described as megatoothed sharks. They lived from the Early Cretaceous to the Pliocene, and included genera such as Otodus, including the giant megalodon. Although traditionally classified under Carcharocles, studies of the genus Megalolamna indicate that the megatoothed sharks were likely members of Otodus. The genus Cretalamna which lived from the mid-Cretaceous-Paleogene is believed to be directly ancestral to Otodus, and thus to megalodon.

Kenshu Shimada · 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
- LamniformesPBDB
- Diet
- carnivorePBDB, for Lamniformes
- Life habit
- nektonicPBDB, for Lamniformes
- Motility
- actively mobilePBDB, for Lamniformes
Time the record covers
At least 158 million years on record.
The record covers at least 161.5 Mya to 2.58 Mya. No occurrence read is dated outside 165.3 Mya to 0 Mya.
1,159 occurrences of Otodontidae on record, most of them in the Miocene. 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
1,159 occurrences- Middle Jurassicunder 1%
- Early Cretaceous2%
- Late Cretaceous31%
- Paleocene6%
- Eocene16%
- Oligocene4%
- Miocene33%
- Pliocene6%
- Pleistoceneunder 1%
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
375 formations
- Landana Formation21
- Pisco Formation17
- Gehannam Formation17
- Calvert Formation · Chesapeake Group15
- Mooreville Chalk Formation · Selma Group13
- Pirabas Formation12
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The named rock units Otodontidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 351 further formations hold fewer occurrences each and are not listed. 309 occurrences have no formation on record, which is common for older literature.
Otodontidae and its relatives
MioceneWhere Otodontidae and its relatives were recorded in the Miocene.
Found in the same rock
3,678 taxa- Otodus megalodon75 sites
- Cretalamna appendiculata57 sites
- Myliobatis45 sites
- Carcharodon hastalis37 sites
- Carcharhinus35 sites
- Hemipristis serra30 sites
- Squalicorax kaupi29 sites
- Carcharias28 sites
- Galeocerdo aduncus25 sites
- Isurus25 sites
- Squalicorax pristodontus24 sites
- Carcharias cuspidatus23 sites
- Cretalamna23 sites
- Otodus obliquus22 sites
- Rhinobatos21 sites
- Squatina21 sites
- Teleostei21 sites
- Crocodylia20 sites
- Otodus auriculatus20 sites
- Squalicorax20 sites
- Testudines20 sites
- Cetacea18 sites
- Ischyrhiza mira18 sites
- Striatolamia macrota18 sites
The Paleobiology Database records 973 sites for Otodontidae, and this reads 240 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
489 references- Les poissons fossiles du Bas-Congo et des régions voisines49
- Carcharocles megalodon unpublished collections from Natural History Museums around the world26
- The extinct giant shark Carcharocles megalodon: A model for understanding deep-time body size trends of marine apex predators24
- Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt21
- Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type19
- Les sélaciens des terrains néocrétacés and paléocènes de Belgique and des contrées limitrophes. Eléments d'une biostratigraphie intercontinentale16
- A review of the Tertiary fossil Cetacea (Mammalia) localities in Australia13
- Late Mesozoic and Cenozoic fish faunas of Japan13
- A new species of Cretalamna sensu stricto (Lamniformes, Otodontidae) from the Late Cretaceous (Santonian-Campanian) of Alabama, USA12
- Neogene sharks and rays from the Brazilian 'Blue Amazon'12
- Contribution a l'etude des faunes ichthyologiques marines des terrains tertiaires de la plaine cotiere Atlantique et du centre des Etats-Unis12
- The marine vertebrate faunas from the Late Cretaceous phosphates of Syria11
Each of the 1,159 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. 477 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 content2
Picture of Otodontidae
- Source
- Wikipedia/Commons
- Credit
- Kenshu Shimada
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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, “Otodontidae”
- 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 itLamniformes through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Glickman 1964