On Saturday, Kim Kardashian celebrated the birthday of her son Saint (who turned 4 on Thursday) with a dinosaur-filled celebration that included everything from a giant nest of dinosaur “eggs” and cookies covered in dinosaur footprints to a smoke-filled cave, and a “raptor juice” stand.

“Okay look guys, Saint’s dinosaur party is today,” said Kardashian in her Instagram Stories, where she showed off the elaborate setup.

Kim Kardashian celebrated the 4th birthday of son Saint on Saturday with a dinosaur-filled birthday bash.

Oversized T-Rex sculptures and leafy trees overshadowed activity stations such as “Jurassic Jewelry,” for kids to make dino accessories and a dig site to strap on headlamps and hunt for fossils.

“Do you think we’re going to find some, Saint?” Kardashian asks, to which her son, wearing bright yellow pants and a camouflage vest, answered “Yeah!”

Naturally, there was an over-the-top birthday cake. The chocolate delight, which read “Happy Birthday Saint,” was covered in individually-placed M&M’s in color-coordinated rings around the cake.

The birthday cake for Kim Kardashian and Kanye West's son Saint, who celebrated his 4th birthday with a dinosaur-filled bash on Saturday.

On Thursday, Kardashian posted a heartfelt message on Instagram to her son.

"I have no words to describe how much I love your smile and those curls of yours Saint!" Kim wrote, captioning an adorable photo of a smiling Saint. "You bring so much joy into my soul. You are so kind, loving and just so thoughtful and sweet! I am so happy today if your 4th birthday and We get to celebrate how much you’ve grown!" 

Kim Kardashian's two youngest children, Chicago West, and Psalm West, hang together at Saint West's 4th birthday party.