9 cards where the text includes “dinosaur” and the colors is G and it’s legal in Standard

Armored Kincaller (The Lost Caverns of Ixalan #174)
Disturbed Slumber (The Lost Caverns of Ixalan #182)
Earthshaker Dreadmaw (The Lost Caverns of Ixalan #183)
Huatli, Poet of Unity // Roar of the Fifth People (The Lost Caverns of Ixalan #189)
Huatli, Poet of Unity // Roar of the Fifth People (The Lost Caverns of Ixalan #189)
Intrepid Paleontologist (The Lost Caverns of Ixalan #193)
Ixalli's Lorekeeper (The Lost Caverns of Ixalan #194)
Nurturing Bristleback (The Lost Caverns of Ixalan #203)
Pugnacious Hammerskull (The Lost Caverns of Ixalan #208)
The Skullspore Nexus (The Lost Caverns of Ixalan #212)

Though this query has ended, its relics still slumber in New Argive.