411 REFERENCE · Wiktionary
Helicoprion
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Translingual
vertical Helicoprion reccon.png life restoration of †Helicoprion davisii species Helicoprion tooth whorl.jpg †Helicoprion davisii species
tooth whorl fossil
Etymology
From mul grc ἕλιξ helix + grc πρίων saw.
Noun
†m 1
genus family †Helicoprionidae family certain extinct shark-like fish from the Permian, known for their spirally arranged tooth whorls
Hypernyms
genus ; Holocephali subclass subclass; †Eugeneodontida order order; †Edestoidea superfamily superfamily; †Helicoprionidae family family
Hyponyms
genus †Helicoprion bessonowi species type species, †Helicoprion davisii species, †Helicoprion ergassaminon species extinct species
References
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mul Fish