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Nelson, J.S., 1994

Chimaeriformes chimaeras

Holocephali

Hexanchiformes 400 M years

Carroll, R., 1988  |  Helfman, G., B. Collette and D. Facey, 1997

early Devonian

Seewasser

Süsswasser

Brackwasser

Dentition consisting of a few large permanent grinding tooth plates; palatoquadrate fused to neurocranium. Two dorsal fins, the first erectile, with short base, and preceded by an erectile spine, the second nonerectile, low, and with a long base; mouth inferior. Internal fertilization; eggs encased in a brown horny capsule. Water for breathing is chiefly taken in through the nostrils. Maximum length about 1.5 m.

Greek holos = whole + Greek kephale = head. Ref. 45335.

Latin, chimaera = monster. 1634 + Latin, forma = shape (Ref. 45335).

( n = 3 ) -
Callorhinchidae Chimaeridae Rhinochimaeridae

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]