dnd-4emonsters
I need to pull together a list of dinosaur equivalents for D&D by name, what dinosaur they are equivalent to, and ideally book.
I know the various monster manuals and other books have a bunch of dinosaur equivalents. I don't have all the books but I do have D&D insider which has a major weakness of no pictures. I have this big need for a plateau filled with dinosaurs (my daughter has been making tokens with dinosaurs stamped on them).
Have you looked at the system on p138 of the Dungeon Master's Guide 2? It lays out the basic system and should get you started.
This DM screen was released in August 2008, a couple of months after the first PHB, MM, and DMG were released (June 2008). MM2 and PHB2 weren't out until 2009 so this likely features exclusively MM1 monsters. It was illustrated by the late Francis Tsai, whose signature can be found in the lava in the bottom right.
Characters in the image are numbered from left to right. The indistinct background characters have been left out. Click to zoom in on the image.
Either a Gargoyle (MM p115) or a War Devil (MM p67, depicted p66)
(Not identified. Broad-built pale-skinned brooding dudes standing around holding hand-scythes aren't prominently illustrated anywhere in MM1 or DMG1.)
A Beholder, found on MM p32
A Lamia, found on MM p174, also depicted turning into beetles. Turning into a swarm is one of her abilities. (Identified by Jadasc)
A Mind Flayer, found on MM pp188–189
An Umber Hulk, found on MM p256
A Black Dragon, found on MM pp75–76, illustrated on p77
Looks like a Bugbear, MM p135, given it looks like it's fuzzy right down to its brow.
Looks like a very buff Goblin or Hobgoblin (MM pp136–141) or an Orc (pp203–205). Illustrations on all three of these varied a bunch between artists. If it's a hobgoblin they changed its colors, but they did that as well for the troglodytes next on this list.
Very likely Troglodytes, found on MM pp252–253. The anatomy's almost identical, but here they're depicted brown instead of blue. (identified by Adriano Varoli Piazza)
Best Answer
Behemoths are the D&D4 dinosauroids. I'm not sure they have obvious equivalents in all cases.
I'd also add in Fastieth (it's an Ebberon monster, but it's a nice little velociraptor guy)
Other ideas include a reskinned Destrachan, certain drakes, and maybe even reskin stirge's as pleistocene mosquitos. ;)
Also see this thread. The Fang Titan Drake (mm2) is highly recommended as a stand-in for a T-Rex.