Kardashian showed off the party's elaborate dinosaur theme on Instagram, as well as sharing a pic of the M&M-encrusted chocolate cake. The M&Ms were meant to replicate dinosaur eggs.
What do kids love more than dinosaurs?!
The party also featured punch called "Raptor Juice," a "Jurassic jewelry"-making station, and a "Dino Dome" for kids to create imaginary dinosaur living spaces.
Yummy dinosaur eggs
Loyal fans knew what was coming if they'd followed the prep on Kardashian's Instagram Stories. "Look guys! Saint's dinosaur party is today. How cute is everything? We are still setting up," Kim wrote prior to the kickoff.
A roarin' good time
"Jurassic Jewelry" for everyone
On Thursday — Saint's actual birthday — Kim wrote on Instagram, "I have no words to describe how much I love your smile and those curls of yours 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! Happy birthday my sweet sweet Sainty."