File:Carcharhinus_isodon.jpg · Wikimedia Commons · See Wikimedia Commons
Carcharhiniformes
Sign in to savethumb|253px|Ground sharks, like this blacknose shark, have a [[nictitating membrane which can be drawn over the eye to protect it.]]
OverviewAI-generated
Carcharhiniformes is an order of sharks within the class Elasmobranchii and phylum Chordata. It belongs to the kingdom Animalia and falls under the parent taxon Euselachii. The taxon is governed by the International Code of Zoological Nomenclature and holds an accepted status. Common names for this group include gråhaier, pravi morski psi, and gråhajartade hajar.
Members of this order inhabit marine, brackish, and freshwater environments. The taxon has 1,886,643 recorded occurrences. Additional records are held by institutions including USNM, UCMP, SDNHM, and NHMUK, with data from the United States and the United Kingdom. The subject is referenced by 672 other encyclopedia articles.
Synthesized by Vinony from 27 facts across 6 sources: Wikidata, WoRMS, GBIF, Gbif Occ, iDigBio, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Species
gråhajartade hajar
ORDER
- KingdomAnimalia
- PhylumChordata
- ClassElasmobranchii
- OrderCarcharhiniformes
Les Carcharhiniformes forment un ordre qui regroupe plus de 270 espèces de requins. Sommaire 1 Caractéristiques 2 Taxinomie 3 Liste des familles 3.1 Familles et genres 4 Références taxinomiques 5 Notes et références Caractéristiques Les requins-marteau comme ce requin-marteau halicorne (Sphyrna lewini) font partie de la famille des Sphyrnidae. Ils se caractérisent par la présence d'une membrane nictitante sur l'œil, deux nageoires dorsales (sans épine), une nageoire anale, et cinq fentes branchiales dépourvues de peignes branchiaux[2]. Les Carcharhinidae et les Sphyrnidae (requin marteau) sont principalement de type vivipare placentaire (ou vivipare gestant), c'est-à-dire qu'ils possèdent un placenta vitellin comme celui des mammifères évolués. Taxinomie Les familles qui le composent, au vu des analyses d'ADN récente, devraient être révisées. Le groupe traditionnel ne semble pas être monophylétique. Liste des familles Selon FishBase (6 janvier 2014)[3], World Register of Marine Species (1er février 2016)[2], NCBI (6 janvier 2014)[4], ITIS (6 janvier 2014)[5] et Paleobiology Database (6 janvier 2014)[6] : famille Carcharhinidae Jordan & Evermann, 1896 famille Hemigaleidae Hasse,
via GBIF
Museum specimens
- Specimen records
- 738
- With media
- 2
- Collections
- USNM, UCMP, SDNHM, NHMUK
- Recorded in
- United States, United Kingdom
~5 min read
Encyclopedic overview
5 sectionsContents
- Families
- Fossil genera
- References
- Further reading
- External links
thumb|253px|Ground sharks, like this blacknose shark, have a [[nictitating membrane which can be drawn over the eye to protect it.]]
Carcharhiniformes (; ), commonly called ground sharks, are the largest order of sharks, with over 270 species. They include a number of common types, such as cat sharks, swellsharks, and hound sharks.
Excerpted from Wikipedia’s “Carcharhiniformes” article, available under the CC BY-SA 4.0 licence.