subtriangular

First described for a partial snout from the Brazilian Santana Formation, Tupuxuara longicristatus Kellner & Campos, 1988 is a toothless Cretaceous pterosaur with a rather long, subtriangular skull.

Those sexy tupuxuarids Darren Naish 2006

Most artists have depicted them as looking something like long-tailed pliosaurs, albeit of course with that subtriangular fin at the tail tip.

My party and those marvellous metriorhynchids Darren Naish 2006

Most artists have depicted them as looking something like long-tailed pliosaurs, albeit of course with that subtriangular fin at the tail tip.

Archive 2006-07-01 Darren Naish 2006

In contrast, in brachiosaurids it was small, subtriangular in cross-section, and not separated from the rest of the metacarpus.

Archive 2006-04-01 Darren Naish 2006

First described for a partial snout from the Brazilian Santana Formation, Tupuxuara longicristatus Kellner & Campos, 1988 is a toothless Cretaceous pterosaur with a rather long, subtriangular skull.

Archive 2006-11-01 Darren Naish 2006

But in the Yixian Formation enantiornithean Protopteryx (image at left: taken from Dinosaur. net.cn) there are just two conical, unserrated teeth in the premaxillae and two subtriangular teeth at the dentary tips (Zhang & Zhou 2000).

Archive 2006-07-01 Darren Naish 2006

But in the Yixian Formation enantiornithean Protopteryx (image at left: taken from Dinosaur. net.cn) there are just two conical, unserrated teeth in the premaxillae and two subtriangular teeth at the dentary tips (Zhang & Zhou 2000).

The war on parasites: an oviraptorosaur’s eye view Darren Naish 2006

Dog-ear marks: in bees: small, subtriangular marks of light color, just below the antennae (Cockerell).

Explanation of Terms Used in Entomology John. B. Smith

Axillae: two small, subtriangular sclerites at the lateral basal angles of the meso-scutellum in Proctytripidae.

Explanation of Terms Used in Entomology John. B. Smith

It is probable that the subtriangular figure below is intended for the head, as the two circles with central dots are good representations of eyes.

Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 William Henry Holmes 1889