Alopias
Thresher sharks are large mackerel sharks of the family Alopiidae found in all temperate and tropical oceans of the world; the family contains three extant species, all within the genus Alopias.

Pierre Pericard · CC BY 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- Also called
- thresher sharkPBDB
- Sits inside
- AlopiidaePBDB
- Diet
- carnivorePBDB, for Lamniformes
- Life habit
- nektonicPBDB, for Lamniformes
- Motility
- actively mobilePBDB, for Lamniformes
Time the record covers
At least 48 million years on record.
The record covers at least 48.07 Mya to 11.7 ka. No occurrence read is dated outside 56 Mya to 0 Mya.
154 occurrences of Alopias 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
154 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
70 formations
- Gehannam Formation6
- Calvert Formation · Chesapeake Group4
- Birket Qarun Formation4
- Chucunaque Formation4
- Marnes de Donzacq Formation4
- Jewett Formation3
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The named rock units Alopias has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 further formations hold fewer occurrences each and are not listed. 35 occurrences have no formation on record, which is common for older literature.
Alopias and its relatives
MioceneWhere Alopias and its relatives were recorded in the Miocene.
Found in the same rock
2,241 taxa- Hemipristis serra45 sites
- Carcharodon hastalis40 sites
- Galeocerdo aduncus37 sites
- Otodus megalodon36 sites
- Carcharhinus33 sites
- Dasyatis31 sites
- Isurus oxyrinchus31 sites
- Carcharhinus priscus26 sites
- Myliobatis25 sites
- Squatina25 sites
- Carcharias cuspidatus23 sites
- Notorynchus primigenius21 sites
- Aetobatus20 sites
- Carcharias taurus20 sites
- Rhinoptera20 sites
- Rhizoprionodon19 sites
- Squalus19 sites
- Sphyrna zygaena18 sites
- Carcharias17 sites
- Chaenogaleus affinis17 sites
- Isurus16 sites
- Physogaleus contortus16 sites
- Raja16 sites
- Scyliorhinus16 sites
The Paleobiology Database records 118 sites for Alopias, 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
89 references- Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt14
- Paralopias follioti n. gen. n. sp., un nouvel Alopiidae Bonaparte, 1838 (Elasmobranchii, Lamniformes) provenant du Serravallien (Miocène Moyen) de Salles (Gironde, France)5
- Inventaire des Élasmobranches (requins, raies, chimères) des dépôts molassiques du Sud-Luberon (Miocène supérieur)5
- 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 profondes5
- Fossiles de Belgique. Dents de Requins et de Raies du Tertiare de la Belgique5
- Late Miocene chondrichthyans from Lago Bayano, Panama: Functional diversity, environment and biogeography4
- A new Early Miocene (Aquitanian) Elasmobranchii assemblage from the la Guajira Peninsula, Colombia4
- Records of elasmobranchian teeth in the Bartonian of the northern Caucasus (Russia) and Crimea (Ukraine)4
- Additions to, and review of, the Miocene shark and ray fauna of Malta4
- New selachian assemblages from the Oligocene of Moravia (Czech Republic)3
- The Neogene sharks, rays, and bony fishes from Lee Creek Mine, Aurora, North Carolina3
- Late Mesozoic and Cenozoic fish faunas of Japan3
Each of the 154 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. 77 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 Alopias
- Source
- Wikipedia/Commons
- Credit
- Pierre Pericard
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Credit
- LACM Ichthyology
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Alopias vulpinus · LACM:Fish:36227.001
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 itAlopiidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1810