There are 3 books in the The Quintaglio Ascension series. The newest book is Foreigner which came out in 1994.

1
Far-Seer

Book cover of Far-Seer
Sixty-five million years ago, aliens transplanted Earth's dinosaurs to another world. Now, intelligent saurians -- the Quintaglios -- have emerged. Afsan, the Quintaglio counterpart of Galileo, must convince his people of the truth about their place in the universe before astronomical forces rip the dinosaurs' new home apart.

ROBERT J.…
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2
Fossil Hunter

Fossil Hunter
Toroca, the son of Afsan the Far-Seer and a geologist searching for the rare metals needed to take his species to the stars, discovers an artifact that may reveal the true origin of the dinosaurs. Original.

3
Foreigner

Foreigner
In a dinosaur-ruled world, saurian scientist Afsan the Far-Seer struggles to overcome his new blindness with the help of a doctor who treats the mind as well as the body, while Afsan's mate, Novato, dreams of journeying to the stars. Original.