List of Species in The Land Before Time

* Apatosaurus: Ali's Mother, Ali, Bron, Grandma and Grandpa Longneck, Littlefoot's Mother, Littlefoot, Pat, Rhett, etc.
* Argentinosaurus
* Brachiosaurus: Shorty, etc.
* Camarasaurus
* Cetiosaurus
* Diplodocus: Dara, Doc, Mrs. Mama
* Plateosaurus
* Saltasaurus
* Supersaurus: Sue
* Ultrasaurus: Sue's Boyfriend

### Tinysauruses

* Mussaurus: Big Daddy, Lizzie, Skitter, Rocky and Dusty, etc

### Sharpteeth

* Dimetrodon
* Deinosuchus: Dil
* Postosuchus
* Rutiodon: Belly Draggers (The Amazing Threehorn Girl)
* Sarcosuchus: Belly Dragger (The Great Longneck Migration)

### Threehorns

* Chasmosaurus
* Protoceratops
* Styracosaurus
* Triceratops: Daddy Topps, Tria, Cera, Tricia, Dinah & Dana etc.

### Tickly Fuzzies

* Ceratogaulus: Lydia, Milo, Plower, etc.
* Didelphodon: Skip
* Megazostrodon: Tickles
* Ptilodus

### Spiketails

* Kentrosaurus
* Stegosaurus: Spike, Spiketail Leader, Tippy, Tippy's Mother

### Crawlers

* Eryops
* Greererpeton
* Ichthyostega

## Twofooters

### Domeheads

* Pachycephalosaurus
* Prenocephale
* Stegoceras

### Egg Stealers

* Struthiomimus: Ozzy & Strut
* Ornithomimus

### Fast Runners

* Oviraptor: Ruby's Parents, Ruby's Siblings, Ruby

### Flyers

* Archaeopteryx
* Cearadactylus: Sierra
* Dimorphodon
* Preondactylus
* Pteranodon: Mama Flyer, Petrie's Siblings, Petrie, Pterano, Etta, Swooper, etc.
* Pterodactylus: Sharptooth Flyer
* Quetzalcoatlus
* Rhamphorhynchus: Rinkus
* Scaphognathus

### Hollowhorns

* Corythosaurus
* Hypacrosaurus
* Lambeosaurus
* Parasaurolophus

### Sharpteeth

* Acrocanthosaurus: Sharptooth Family (The Lonely Journey)
* Albertosaurus: Mountain Sharptooth (The Big Freeze)
* Allosaurus: Browridge Sharptooth (The Secret of Saurus Rock)
* Baryonyx: Hookthumb Sharpteeth (The Wisdom of Friends)
* Carnotaurus: Horned Sharptooth (Journey of the Brave)
* Daspletosaurus: Sharptooth Trio (The Great Longneck Migration)
* Giganotosaurus: Plated Sharptooth (The Mysterious Island)
* Gorgosaurus
* Spinosaurus: Sailback Sharptooth (The Great Day of The Flyers), Sailback Sharpteeth (The Hermit of Black Rock)
* Tarbosaurus: Fantasy Sharpteeth (The Brave Longneck Scheme)
* Tyrannosaurus: Sharptooth (character), Chomper, Chomper's Mother, Chomper's Father, Meanest Sharptooth, Canyon Sharptooth (The Secret of Saurus Rock), Red Claw
* Yangchuanosaurus
* Yutyrannus: Featherhead Sharpteeth (Journey of The Brave)

### Fast Biters

* Achillobator
* Deinonychus: Sharpteeth (The Stone of Cold Fire), Screech and Thud
* Dromaeosaurus
* Herrerasaurus: Stampeding Sharpteeth (The Lonely Journey)
* Ornitholestes
* Utahraptor: Sharpteeth (Invasion of The Tinysauruses), Sharptooth Mom
* Velociraptor: Sharpteeth (The Time of The Great Giving), Sharpteeth (The Lonely Journey)

### Bigmouths

* Camptosaurus
* Edmontosaurus
* Iguanodon
* Maiasaura: Mrs. Maia
* Muttaburrasaurus: Mutt's Father, Mutt
* Ouranosaurus
* Parasaurolophus
* Saurolophus: Ducky and Spike's Siblings, Ducky, Mama Swimmer, Papa Swimmer, etc

### Others

* Beipiaosaurus: Loofah & Doofah, Foobie, etc.
* Coelophysis
* Compsognathus
* Dryosaurus
* Hypsilophodon: Hyp's Father, Hyp
* Microceratus: Great Hideous Beast
* Nothronychus: Wild Arms

## Swimmers

### Swimming Sharpteeth

* Cretoxyrhina: Swimming Sharptooth (The Mysterious Island)
* Eusthenopteron
* Hydrotherosaurus: Swimming Sharptooth (Journey Through the Mists)
* Kronosaurus
* Liopleurodon: Sharptooth Swimmer (Journey to Big Water)
* Megalodon
* Aigialosaurus
* Mosasaurus
* Metriorhynchus: Swimming Sharptooth (The Land Before Time)
* Pliosaurus
* Tylosaurus

### Others

* Archelon: Archie
* Cryptoclidus
* Elasmosaurus: Elsie
* Muraenosaurus
* Ophthalmosaurus: Mo
* Protostega

## Other Creatures

### Swimmers

* Starfish
* Ammonite
* Jellyfish
* Sea Horse
* Mawsonia
* Eusthenopteron
* Caproberyx
* Protosphyraena
* Bananogmius
* Cyclobatis
* Megalograptus
* Estonioceras
* Trilobite
* Leptolepis
* Lepidotes

### Others

* Crab: Scuttle, Crunch, etc.
* Locust: Swarming Leaf Goblers (The Mysterious Island)
* Dragonfly
* Bee
* Crayfish
* Spider
* Butterfly