Please read Patch Notes for v204, for reference to them fixing Plesiosaur spawns.
I have added back in Plesiosaurs from my mod.

Put Spinos and Sarcos back in, but Plesiosaurs are still vanilla.
This is a Temp Fix until Remap NPCs is fixed for Plesiosaurs, all current Plesiosaurs will be lost if tamed before this mod update.

Temporarily removed Plesiosaurs, Spinos, and Sarcos from my mod.
The Vanilla Plesiosaurs, Spinos, and Sarcos should spawn normally and there should be no more spawn issues.

Fixed an issue where none of the Color Variety Mod colors were taking effect on Trilobites
Also fixed an issue with not being able to summon Trilobites from the mod

Made some minor tweaks internally
Added Trilobite to the mod and all the colors to the Trilobite's color scheme. (I have no idea how I overlooked this one.......)

Updated to Devkit V201.6
Added Bigfoot to the mod and all the colors to his color scheme.
I also added 4 custom colors to every dinosaur which was requested by BiOniC.

Fixed Sarco tails so that they no longer stick straight up!

Updated to v200.5 Devkit and finished all the Dinosaur colors for every Dinosaur currently available.