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 |
: |
Converted to PHP by Kit 06.10.09 |