Dinosaurs make a great theme for online slots. They are imposing creatures and there is a fair variety of them. And from the era they ruled the earth there are other items that can be used visually in online slot games. Therefore it is hardly surprising that all leading software providers have slot games based on the dinosaur theme.

The dinosaur themed online slot from Cryptologic is titled Dino Delight. It takes players back to the Flintstones comics with caricatured symbols on the reels. The cave girl is the wild symbol and emits hearts in the animations. She also awards a whopping jackpot payout of 10,000 coins. The baby dinosaur is the scatter symbol and triggers the bonus game. In this game players have to match three symbols from six dinosaur eggs and can win extra credits or free spins. The prizes in the free spins are doubled. The other thematic symbols include dinosaurs, tree and the cave man. The high value card symbols have been crafted from stone. Dino Delight has a unique side bet in which the player selects one from head and tail. While the reels spin a dinosaur tosses a coin. If the player has called correctly then the side bet amount is doubled.

Microgaming has named its dinosaur themed slot game as Dino Might. The introductory clip takes players back to a savage world that has been lost in time. The high paying symbols on the reels are the caricature likeness of various dinosaurs. The lower paying symbols are exotic plants from the Jurassic era. The Dino Might logo is the wild symbol. It also awards the highest line payout of 8,000 coins. This Microgaming slot machine offers two bonus games. The Reel Bonus is triggered when three or more Triggersaurus symbols appear in a payline and let out a ferocious roar. Players choose one of the symbols on the reels to win up to 4,500 bonus credits. The Match Bonus is triggered when three or more amber fossil symbols appear on the reels. Players have to match four of the same symbol to win up to 20,000 coins in this game. If they find the mighty multiplier then they will get a boost to their winnings.

Easily the best dinosaur themed slot game is T-Rex from the software provider Realtime Gaming. The symbols are more realistic. The reels are set in a dense Jurassic landscape. The T-Rex is the wild symbol. It appears on only the third reel in the main game but doubles payouts when participating in winning combinations. During the animations it breaks the boundaries of the symbol and lets out a ferocious roar. The dinosaur egg is the scatter symbol. It awards scatter payouts and triggers the free spins feature. Each egg awards up to 10 free spins. During the free spins the T-Rex symbol can appear on all reels. It awards a line payout of 10,000 coins. When it appears on the third reel in the free spins it devours all the other dinosaurs on the reels and replaces them with the wild T-Rex symbols before payouts are awarded. The other thematic symbols are various dinosaurs, volcano and plant. The high value card symbols are also used. T-Rex is a Real Series slot from Realtime Gaming and therefore offers a randomly triggered progressive jackpot.