Seabed/Benthic

Archelon Turtle

Titan turtle of the inland sea

Basilosaurus

The long-bodied king of Eocene seas

Tylosaurus

Ram-snouted ruler of Cretaceous seas

Dickinsonia

Quilted giant of Earth's deep past

Plesiosaur

Four flippers, many lifestyles

Tully Monster

Illinois' Carboniferous mystery creature

Leedsichthys

Jurassic seas' gentle giant filter-feeder

Mosasaurus

Apex lizard of the Cretaceous seas

Ichthyosaurus

Fish-lizard, built for speed

Livyatan

Big-toothed terror of the Miocene seas

Labout's Fairy Wrasse

Small fish, big reef fireworks

Anomalocaris

Cambrian seas' original superpredator

Leopard Shark

Spots of the surf zone

Galapagos Shark

The drop-off guardian of island seas

White Shark

Warm-bodied ruler of the blue

Kitefin Shark

Deep-slope slicer with a stealthy bite

Great Hammerhead Shark

Biggest hammerhead, biggest comeback needed

Pacific Sleeper Shark

Deep, cold, and quietly formidable

Bronze Whaler Shark

Copper sheen, surf-zone speed.

Blacknose Shark

Spot the snout-smudge shark

Dusky Shark

Slow to grow, easy to lose

Pyjama Shark

Striped night hunter of South Africa

Blacktip Reef Shark

Black tip. Bright reef. Loyal patrol.

Caribbean Reef Shark

The reef's resident requiem shark