Hexanchus griseus

Uncredited · via Wikidata/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
- bluntnose sixgill sharkPBDB
- Sits inside
- HexanchusPBDB
- Diet
- carnivorePBDB, for Hexanchiformes
- Life habit
- nektonicPBDB, for Hexanchiformes
- Motility
- actively mobilePBDB, for Hexanchiformes
Time the record covers
At least 14 million years on record.
The record covers at least 15.98 Mya to 1.8 Mya. No occurrence read is dated outside 20.45 Mya to 774 ka.
18 occurrences of Hexanchus griseus on record, most of them in the Pliocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
18 occurrences- Miocene42%
- Pliocene47%
- Pleistocene11%
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
13 formations
- Horcón Formation2
- Kattendijk Formation2
- Bahía Inglesa Formation1
- Tirabuzón Formation1
- Blue Clay Formation1
- Globigerina Limestone Formation1
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The named rock units Hexanchus griseus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Hexanchus griseus and its relatives
PlioceneWhere Hexanchus griseus and its relatives were recorded in the Pliocene.
Found in the same rock
309 taxa- Isurus oxyrinchus10 sites
- Carcharodon hastalis8 sites
- Otodus megalodon8 sites
- Carcharias taurus6 sites
- Carcharhinus brachyurus5 sites
- Cetorhinus maximus5 sites
- Galeocerdo aduncus5 sites
- Hemipristis serra5 sites
- Carcharhinus falciformis4 sites
- Carcharodon carcharias4 sites
- Pristiophorus4 sites
- Squatina4 sites
- Lamna nasus3 sites
- Negaprion eurybathrodon3 sites
- Odontoceti3 sites
- Aetomylaeus2 sites
- Alopias2 sites
- Alopias superciliosus2 sites
- Balaenopteridae2 sites
- Carcharhinus priscus2 sites
- Cetorhinus2 sites
- Chaenogaleus affinis2 sites
- Chondrichthyes2 sites
- Dasyatis2 sites
The Paleobiology Database records 18 sites for Hexanchus griseus, 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
16 references- Condrictios fósiles del Plioceno Superior de la Formación Horcón, Región de Valparaíso, Chile central2
- Additions to, and review of, the Miocene shark and ray fauna of Malta2
- Taphonomy, palaeoecology and palaeobiological significance of the Cisterna quarry fossil site: An exceptional window into the marine vertebrate biodiversity of the early Late Miocene Mediterranean Sea1
- Evidence for different shark species feeding on a diminutive right whale and a relative of the beluga in the Early Pliocene of the southern North Sea1
- Scavengers and opportunists at work on whale carcasses: decapods, echinoids and fishes1
- A new chondrichthyan (Sharks and Rays) Fossil Assemblage from the Miocene Cacela Fm. at Albufeira (Algarve, Portugal) with two new species: Palaeoecology and Biogeography1
- Remarkable multicuspid teeth in a new elusive skate (Chondrichthyes, Rajiformes) from the Mediterranean Pliocene1
- A new marine vertebrate assemblage from the Wilson Grove Formation at Bloomfield Quarry (Late Miocene), Sonoma County, California1
- The Pliocene locality Balgoy (province of Gelderland, The Netherlands) and a new record of the great white shark, Carcharodon carcharias (Linnaeus, 1758)1
- A partial rostrum of the porbeagle shark Lamna nasus (Lamniformes, Lamnidae) from the Miocene of the North Sea Basin and the taxonomic importance of rostral morphology in extinct sharks1
- A small fossil fish fauna, rich in Chlamydoselachus teeth, from the Late Pliocene of Tuscany (Siena, central Italy)1
- Les sélaciens du Pliocène de la région d'Alba (Piémont, Italie Nord-Ouest)1
Each of the 18 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. 4 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 Hexanchus griseus
- Source
- Wikidata/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
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHexanchus through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Bonaterre 1788)