Chiloscyllium
Chiloscyllium is a genus of sharks in the family Hemiscylliidae.

This illustration was made by Citron You must credit this : Citron / CC-BY-SA-3.0 · CC BY-SA 3.0 · 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
- HemiscylliidaePBDB
- Diet
- carnivorePBDB, for Orectolobiformes
- Life habit
- nektobenthicPBDB, for Orectolobiformes
- Motility
- actively mobilePBDB, for Orectolobiformes
Time the record covers
At least 163 million years on record.
The record covers at least 174.7 Mya to 11.63 Mya. No occurrence read is dated outside 184.2 Mya to 7.246 Mya.
123 occurrences of Chiloscyllium on record, most of them in the Late Cretaceous. 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
123 occurrences- Early Jurassic2%
- Early Cretaceous7%
- Late Cretaceous69%
- Paleocene3%
- Eocene16%
- Oligoceneunder 1%
- Miocene2%
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
53 formations
- Matam Formation7
- Newhaven Chalk Formation6
- Carlile Shale Formation · Colorado Group4
- Oldman Formation · Belly River Group3
- Wahweap Formation3
- Dakota Formation3
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The named rock units Chiloscyllium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 29 further formations hold fewer occurrences each and are not listed. 42 occurrences have no formation on record, which is common for older literature.
Chiloscyllium and its relatives
Late CretaceousWhere Chiloscyllium and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,134 taxa- Rhinobatos40 sites
- Squalicorax kaupi35 sites
- Cretalamna appendiculata28 sites
- Archaeolamna kopingensis20 sites
- Heterodontus20 sites
- Scapanorhynchus raphiodon20 sites
- Cretodus semiplicatus18 sites
- Dasyatis18 sites
- Hybodus17 sites
- Squalicorax falcatus17 sites
- Squatina (Cretascyllium) hassei17 sites
- Anomotodon hermani16 sites
- Cretoxyrhina mantelli15 sites
- Pseudohypolophus mcnultyi15 sites
- Pseudoscapanorhynchus compressidens15 sites
- Scyliorhinidae15 sites
- Cantioscyllium decipiens14 sites
- Carcharias adneti14 sites
- Coupatezia14 sites
- Hadrosauridae14 sites
- Ischyrhiza mira14 sites
- Pseudocorax laevis14 sites
- Ptychotrygon triangularis14 sites
- Crassescyliorhinus germanicus13 sites
The Paleobiology Database records 116 sites for Chiloscyllium, 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
63 references- Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK18
- Late Cretaceous and Danian neoselachians from southern Sweden9
- The selachian fauna (sharks and rays) of the phosphate series of Ndendouri-Ouali Diala (Matam, Western Senegal): Dating and paleoenvironmental interests7
- Vertebrate microsite assemblages (exclusive of mammals) from the Foremost and Oldman Formations of the Judith River Group (Campanian) of southeastern Alberta: an illustrated guide5
- Les Orectolobiformes, Carcharhiniformes et Myliobatiformes (Elasmobranchii, Neoselachii) des bassins à phosphate du Maroc (Maastrichtien-Lutétien basal). Systématique, biostratigraphie, évolution et dynamique des faunes5
- Elasmobranchs from Upper Cretaceous freshwater facies in southern Utah4
- Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt4
- Les sélaciens des terrains néocrétacés and paléocènes de Belgique and des contrées limitrophes. Eléments d'une biostratigraphie intercontinentale4
- New sharks and rays from the Cenomanian and Turonian of Charentes, France3
- Albian and Cenomanian selachian assemblages from north-east England3
- A new chondrichthyan (Sharks and Rays) Fossil Assemblage from the Miocene Cacela Fm. at Albufeira (Algarve, Portugal) with two new species: Palaeoecology and Biogeography2
- Microvertebrates from the Lower Greensand Group (Lower Cretaceous) of Clophill, Bedfordshire, UK, and Nutfield, Surrey, UK2
Each of the 123 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. 51 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 Chiloscyllium
- Source
- Wikipedia/Commons
- Credit
- This illustration was made by Citron You must credit this : Citron / CC-BY-SA-3.0
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Chiloscyllium plagiosum · l-mc
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 itHemiscylliidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Müller and Henle 1837