Acanthodii

(redirected from Spiny shark)
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Acanthodii

an order of placoderm fossil fish, whose members bear spines along the anterior margin of the fins.
References in periodicals archive ?
In their study, a research team led by the University of Valencia describes a new species of spiny shark (Acanthodii), a primitive type of fish that shared characteristics with sharks and bony fish.
* On August 5, 2014, the ROM's Dave Rudkin and Carole Burrow of Queensland Museum, Australia, published a paper in the journal PLOS ONE about a 425-million-year-old spiny shark fossil, the oldest known near-complete fossil of an early jawed fish.
Also known as spiky or spiny sharks, this is a poorly understood species.