Chinger’s -Not good exactly but not as bad as the (mostly awful) Earthmen
And, of course, in Terry Pratchett’s Small Gods, the Great God Om has found himself, due to a lack of true believers, incarnated as a small turtle. While Om is, admittedly, arrogant, lazy, selfish, and obnoxious, he’s not really a villain, and ends up saving our hero.
Tooth and Claw by Jo Walton is a pastiche of a Victorian romance, except all the characters are dragons.
The Biggest Secret by David Icke.
Not entirely relevant, since there’s only one reptile, a triceratops – but let me plug one of my all-time favorite kids’ books, The Enormous Egg.
Well, now I know where one Doper got his name.
Ya beat me to it. Pah!
If you don’t mind Children’s books, there’s Verdi by Janell Cannon
Nitpick: Tortoise. The turtle was what all the theological controversy was about, as to the nature of the world.
I was going to say Silverberg’s Majipoor, but the species I thought was reptilian is actually monotreme mammalian with scales. I assume this doesn’t count for the OP.
David Bischoff’s Dragonstar trilogy has sentient dinosaurs ( evolved from a dinosaur-era ecology left in a very large and ancient space habitat, apparently put there by preservationist minded aliens ). They are neither particularly good nor bad as I recall.
I’m surprised that no one’s mentioned James Blish’s classic A Case of Conscience, about a society of reptilian humanoids who have achieved an atheistic utopia.
There’s Robert Sawyer’s Quintaglio trilogy (Far-Seer, Fossil Hunter and Foreigner) which is about a race of intelligent T-Rex like dinosaurs. (And I can’t go too much further into it than that without spoiling something, so…)
In Britain, he’s a tortoise. I’m an American, so he’s a turtle…
Do not tortoises live exclusively on land, while turtles spend much of their time in the water?
Doc Smith’s Lensmen books feature the Velantians, who produced a second-stage lensman, Worsel. They fought against the evil Eddorians and their puppets.
Another kid’s book: The Shy Stegosaurus of Cricket Creek by Evelyn Sibley Lampman and Hubert Buel.
Which reminds me of… “though apparently out of print (used copies available on the Web), Evelyn Sibley Lampman’s “The Shy Stegosaurus of Cricket Creek” is a charming children’s book about twins who find a talking Stegosaurus on their ranch.” (From Wikipedia)
I came into this thread specifically to mention this book.
“Lizard Music” (and Daniel Pinkwater) is fantastic.
Alan Dean Foster’s The Damned trilogy (A Call To Arms, The False Mirror, The Spoils of War) includes among its poly-species alliance the reptilian Hivistahm, who are a bit fussbudgety but highly intelligent and benign.
If you count dragons as reptiles, there’s a bunch of stuff–Walton’s *Tooth and Claw *has already been mentioned. There’s also Naomi Novik’s Temeraire series (starting with Her Majesty’s Dragon) and of course Anne McCaffrey’s famous Pern series.
Oh, and I loved the Dinosaurs sitcom too.