Odontaspis
Odontaspis and Greek: ἀσπίς aspís 'shield') is a genus of sand shark with two extant species.

Dr. Ken Sulak, U.S. Geological Survey · Public Domain · 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- Also called
- sand tiger sharkPBDB
- Sits inside
- OdontaspididaePBDB
- Diet
- carnivorePBDB, for Lamniformes
- Life habit
- nektonicPBDB, for Lamniformes
- Motility
- actively mobilePBDB, for Lamniformes
Time the record covers
At least 132 million years on record.
The record covers at least 132.6 Mya to 129 ka. No occurrence read is dated outside 143.1 Mya to 0 Mya.
300 occurrences of Odontaspis on record, most of them in the Eocene. The Paleobiology Database records this as a living group. 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
300 occurrences- Early Cretaceous3%
- Late Cretaceous22%
- Paleocene17%
- Eocene33%
- Oligocene7%
- Miocene16%
- Pliocene2%
- 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
132 formations
- Landana Formation18
- Mesaverde Formation12
- London Clay Formation11
- Judith River Formation · Montana Group7
- Navesink Formation · Monmouth Group6
- Waipara Greensand Formation6
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The named rock units Odontaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 108 further formations hold fewer occurrences each and are not listed. 55 occurrences have no formation on record, which is common for older literature.
Odontaspis and its relatives
EoceneWhere Odontaspis and its relatives were recorded in the Eocene.
Found in the same rock
3,352 taxa- Myliobatis46 sites
- Ischyrhiza mira39 sites
- Striatolamia macrota34 sites
- Cretalamna appendiculata33 sites
- Aetomylaeus dixoni32 sites
- Carcharias32 sites
- Archaeolamna kopingensis30 sites
- Squalicorax kaupi29 sites
- Hypotodus verticalis26 sites
- Brachycarcharias lerichei25 sites
- Carcharodon hastalis24 sites
- Dasyatis24 sites
- Protoplatyrhina renae24 sites
- Carcharhinus23 sites
- Carcharias samhammeri22 sites
- Cretorectolobus olsoni22 sites
- Scapanorhynchus texanus22 sites
- Squatina22 sites
- Crocodylia21 sites
- Heterodontus21 sites
- Meristodonoides montanensis21 sites
- Squatina prima21 sites
- Isurus20 sites
- Myledaphus bipartitus20 sites
The Paleobiology Database records 276 sites for Odontaspis, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
157 references- Les poissons fossiles du Bas-Congo et des régions voisines25
- A new selachian fauna from the late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin)12
- Casier, 19669
- On fossil-fish remains from the Tertiary and Cretaceo-Tertiary formations of New Zealand8
- Fossil fish remains from the Late Paleocene Tuscahoma and Early Eocene Bashi Formations of Meridian, Lauderdale County, Mississippi, Part I. Selachians7
- Descriptions and Revisions of the Cretaceous and Tertiary Fish-remains of New Zealand7
- An early Cenozoic neoselachian shark fauna from the South Pacific6
- The Selsey Division (Bracklesham Group) at Lee-on-the-Solent, Gosport, (Hants)5
- A new selachian fauna from the Judith River Formation (Campanian) of Montana5
- New or little-known fossils in the National Museum, Part XXVII.-Some Cainozoic fish remains, with a revision of the group5
- Structure and ichthyofauna of the upper part of Eocene sediments in Belogorsk area (Crimea)4
- Late Mesozoic and Cenozoic fish faunas of Japan4
Each of the 300 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. 145 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 content3
Picture of Odontaspis
- Source
- Wikipedia/Commons
- Credit
- Dr. Ken Sulak, U.S. Geological Survey
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Odontaspis noronhai · TCWC:Ichthyology:3922.01
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
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, “Odontaspis”
- 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 itOdontaspididae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Agassiz 1838)