hyperprognathous

hyperprognathous

[¦hī·pər¦präg·nə·thəs]
(anthropology)
Having prominent jaws with a facial profile angle less than 70°.
References in periodicals archive ?
In contrast to this subprognathic species, Thermonectus basillaris (Harris) is somewhat hyperprognathous (5) with the first and third corneal lenses greatly enlarged and dorsally orientated, suggesting that this taxon is more suited for feeding in the open water column or at or near the water's surface (24).