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Any of various saurischian dinosaurs of the group Prosauropoda of the Triassic and Jurassic Periods, having a small head, long neck and tail, serrated teeth, and large thumb claw, and including plateosaurus.

[New Latin Prōsauropoda, group name : Greek pro-, before; see pro-2 + New Latin Sauropoda, group name; see sauropod.]

pro′saur′o·pod′ adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Palaeontology) a herbivorous dinosaur of the Triassic and early Jurassic periods
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Locality f has produced several associated sets of skeletal remains of sauropodomorph ('prosauropod') dinosaurs.
1904 DISCOVERY * Anchisauripus (Anchisaurus foot) was first described by Richard Swann Lull in 1904 as the probable track of the prosauropod dinosaur Anchisaurus (near reptile).
The 190-million-year-old nesting site of the prosauropod dinosaur Massospondylus reveals significant clues about the evolution of complex reproductive behaviour in early dinosaurs.
However, other therizinosauroids have unusual skulls with leaf-shaped teeth, similar in many ways to those of "prosauropod" herbivores.
The preservation of the embryos was so detailed that the team was able to identify the egg-layer with confidence: the prosauropod dinosaur Massospondylus.