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Nelson, J.S., 1994

Pristiformes sawfishes

Elasmobranchii

Torpediniformes 100 M years

Shirai, S., 1996  | 

middle Cretaceous

Marin

Eau douce

Saumâtre

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.

Greek eulanein, elasmos = metal beaten out + Greek brangchia = gills. Ref. 45335.

Greek, pristis, -eos = a kind of shark + Latin, forma = shape (Ref. 45335).

( n = 1 ) -

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]