Reddit reviews Encyclopedia Prehistorica: Sharks and Other Sea Monsters

I don't know of anything great for kids on fossil crocodylians, but there are definitely kids' books on living alligators and a few on crocodiles. There are a few on Sarcosuchus like this and this They don't get the press that dinosaurs get.

A friend gave me this pop-up book as a gift and it has a couple crocodylomorphs in it (extinct non-crown-group crocs). That whole series seems to hit on fossil taxa that other books don't. The book itself is a little fragile but it's really gorgeous.

This book is a good basic reference on all the living species. It's not a kids' book, and it's advanced for a young child.

A couple books I can give off the top of my head that I have would be

1. The Complete Guide to Prehistoric Life by Tim Haines, it's basically a field guide to all of the prehistoric life in the BBC dinosaur shows
   
   
2. A Field Guide to Dinosaurs: The Essential Handbook for Travelers in the Mesozoic by Henry Gee with illustrations by Luis V. Rey is one of my personal favorites and is a really cool field guide with great drawings and a really updated assortment of dinosaurs. Big recommendation on this one!
   
   
3. Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages by Dr. Thomas R. Holtz Jr. and more illustrations by Luis V. Rey (easily one of the best dino artists ever) is also sick and worth the mention just as much
   
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4. [Encyclopedia Prehistorica Dinosaurs : The Definitive Pop-Up] (https://www.amazon.com/Encyclopedia-Prehistorica-Dinosaurs-Definitive-Pop-Up/dp/0763622281/ref=asap_bc?ie=UTF8) and Encyclopedia Prehistorica: Sharks and Other Sea Monsters are the best pop up books I've ever read and are so multi-layered, colorful and impressively informative, the perfect ting for a coffee table book to show people
   
   I just realized you didn't really ask for dinosaur books but more future animals field guides, not really sure why I did that lmaoo still check those out