Poole, Karen E.
Species
ネコザメ属
KINGDOM
- KingdomAnimalia
- PhylumChordata
- ClassElasmobranchii
- OrderHeterodontiformes
- FamilyHeterodontidae
Le genre Heterodontus est un genre de requins primitifs. La famille et l'ordre de ce groupe sont monotypiques.
via GBIF
Museum specimens
- Specimen records
- 263
- With media
- 70
- Family
- Heterodontidae
- Collections
- NHMUK, SDNHM, USNM
- Recorded in
- United Kingdom, United States
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Heterodontidae
- Image
- Hornhai (Heterodontus francisci).JPG
Show 5 more facts
- Commons category
- Heterodontus
- taxon rank
- genus
- taxon name
- Heterodontus
- topic's main category
- Category:Heterodontus
- start time
- 183000000-
Sources (2)
via Wikidata · CC0
~5 min read
Encyclopedic overview
The bullhead sharks are members of the genus Heterodontus, the only members of the family Heterodontidae and only living members of the order Heterodontiformes. All are relatively small, with the largest species reaching just 1.65 metres (5.5 ft) in maximum length. They are bottom feeders in tropical and subtropical waters.
The Heterodontiforms appear in the fossil record in the Early Jurassic. The oldest fossils of the modern genus date to the Late Jurassic. Despite the very ancient origins of this genus and its abundance in the fossil record, phylogenetic evidence indicates that all extant species in the genus arose from a single common ancestor that survived the Cretaceous-Paleogene extinction, with diversification into modern species only starting around the mid-Eocene.
Excerpted from Wikipedia’s “Heterodontus” article, available under the CC BY-SA 4.0 licence.