Order Summary for Pristiformes

  Main Ref
:
  Order
:
Pristiformes sawfishes
  Class
:
Elasmobranchii
  Sister Order
:
Torpediniformes 100 M years
  Ref..
:
  First Fossil Record
:
middle Cretaceous
  Occurs in
:
Marine
Fresh
Brackish
  Remark
:
Snout produced in a long flat blade with teeth on each side (teeth of equal size and embedded in deep sockets); barbels absent; body somewhat sharklike, although the head is depressed; two distinct dorsal fins and a caudal fin.
  Classetymology
:
Greek eulanein, elasmos = metal beaten out + Greek brangchia = gills. Ref. 45335.
  Orderetymology
:
Greek, pristis, -eos = a kind of shark + Latin, forma = shape (Ref. 45335).
  Families
:
( n = 1 ) -
Pristidae

Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]

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