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Nelson, J.S., 1994

Pristiophoriformes saw sharks

Elasmobranchii

Pristiformes 145 M years

Shirai, S., 1996  | 

late Jurassic

เกี่ยวกับทะเล,น้ำเค็ม

สด

กร่อย

Body sharklike; snout produced in a long flat blade with teeth on each side (teeth unequal in size, usually alternating large and small, and weakly embedded); one pair of long barbels; no dorsal fin spines (sometimes present as internal rudiments); anal fin absent; spiracles large. Maximum length 1.4 m.

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

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

( n = 1 ) -
Pristiophoridae

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]