Order Summary for Orectolobiformes

  Main Ref
:
  Order
:
Orectolobiformes carpet sharks
  Class
:
Elasmobranchii
  Sister Order
:
Carchariniformes 155 M years
  Ref..
:
  First Fossil Record
:
late Jurassic
  Occurs in
:
Marine
Fresh
Brackish
  Remark
:
Two dorsal fins, without spines; mouth very short, confined to being well in front of eyes; nostrils specialized, with prominent nasoral grooves wit barbels in most; spiracles too large, below the eye except in Rhincodon; many with small gill slits and with fifth slit overlapping the fourth behind the origin of pectoral fin.
  Classetymology
:
Greek eulanein, elasmos = metal beaten out + Greek brangchia = gills. Ref. 45335.
  Orderetymology
:
Greek, orektos = lengthened, prolongued + Greek, lobos = lobe + Latin, forma = shape (Ref. 45335).
  Families
: