Squaliformes
The Squaliformes are an order of sharks that includes about 126 species in seven families.

NOAA · 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- Sits inside
- SqualomorphiPBDB
- Diet
- carnivorePBDB
- Life habit
- nektonicPBDB
- Motility
- actively mobilePBDB
Time the record covers
At least 201 million years on record.
The record covers at least 201.4 Mya to 11.7 ka. No occurrence read is dated outside 205.7 Mya to 0 Mya.
1,034 occurrences of Squaliformes on record, most of them in the Miocene. 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
1,034 occurrences- Late Triassicunder 1%
- Middle Jurassicunder 1%
- Early Cretaceous5%
- Late Cretaceous24%
- Paleocene9%
- Eocene20%
- Oligocene10%
- Miocene26%
- Pliocene4%
- Pleistocene2%
- Holoceneunder 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
186 formations
- Boom Clay Formation63
- Marnes de Miretrain Formation40
- Hunstanton Formation35
- La Meseta Formation34
- Dongen Formation32
- Laksarska Nova Ves Formation28
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The named rock units Squaliformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 162 further formations hold fewer occurrences each and are not listed. 254 occurrences have no formation on record, which is common for older literature.
Squaliformes and its relatives
MioceneWhere Squaliformes and its relatives were recorded in the Miocene.
Found in the same rock
2,931 taxa- Squalus50 sites
- Squatina42 sites
- Protosqualus sigei40 sites
- Squatina (Cretascyllium) cranei38 sites
- Gladioserratus aptiensis36 sites
- Synechodus dubrisiensis31 sites
- Otodus megalodon30 sites
- Carcharhinus29 sites
- Carcharodon hastalis29 sites
- Heterodontus28 sites
- Scyliorhinus28 sites
- Dasyatis27 sites
- Myliobatis26 sites
- Archaeolamna kopingensis25 sites
- Carcharias25 sites
- Galeocerdo aduncus25 sites
- Hemipristis serra25 sites
- Carcharias acutissimus21 sites
- Odontaspis winkleri21 sites
- Cretascyliorhinus destombesi20 sites
- Carcharias cuspidatus19 sites
- Dalatias licha19 sites
- Notorynchus primigenius18 sites
- Cretorectolobus olsoni17 sites
The Paleobiology Database records 609 sites for Squaliformes, 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
229 references- Biostratigraphie et poissons fossiles de la formation de l'Argile de Boom (Oligocène moyen du Bassin Belge)59
- Les Squalidae (Euselachii) miocènes des environs d'Avignon (Vaucluse)48
- Albian and Cenomanian selachian assemblages from north-east England45
- Maastrichtian squaloid sharks from southern Sweden33
- Nouvelle faunes de sélaciens (Elasmobranchii, Neoselachii) de l'Eocène moyen des Landes (Sud-Ouest, France). Implication dans la connaissance des communautés de sélaciens d'eau profondes32
- Elasmobranch teeth (Vertebrata, Pisces) from the Dongen Formation (Eocene) in The Netherlands32
- Revealing elasmobranch diversity across the Cretaceous-Paleogene boundary in the Central Tethys (Byala, Bulgaria)28
- A new deep-marine elasmobranch fauna from the Late Cretaceous of Bergen (Bavaria, Germany) dominated by squaliform sharks27
- Deep-Water Chondrichthyans from the Early Miocene of the Vienna Basin (Central Paratethys, Slovakia)27
- Inventaire des Élasmobranches (requins, raies, chimères) des dépôts molassiques du Sud-Luberon (Miocène supérieur)25
- Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica19
- Elasmobranch assemblages from a bathyal environment spanning the Cretaceous-Paleogene boundary in Austria18
Each of the 1,034 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. 217 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 Squaliformes
- Source
- Wikipedia/Commons
- Credit
- NOAA
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Squaliformes 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
- 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 itSqualomorphi through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Goodrich 1909)