BIO 113 — Dinosaurs
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Lab 9
Prehistoric Animal Teeth & Diets

Use your knowledge of modern animal diets to determine the diets and feeding styles of marine reptiles and dinosaurs

Prehistoric Reptile Teeth


Mosasaur (Marine Reptile) Teeth
Teeth are oriented with the tip up and root down
Halisaurus arambourgi tooth:
mosasaur tooth
Platecarpus ptychodon tooth with root:
Platecarpus tooth
Prognathodon sp. tooth:
Prognathodon tooth
Globidens aegypticus tooth:
Globidens tooth

Other Prehistoric Reptile Teeth
Teeth are oriented with the tip down and root up
Elosuchus cherifiensis Crocodile tooth:
croc tooth 1
Crocodilian (Amphicotylus sp.?) tooth:
croc tooth 2
Zarafasaura oceanis (plesiosaur marine reptile) tooth:
Zarafasaura tooth
Phytosaur (Machaeroprosopus sp.?) tooth:
Platecarpus tooth
Coloborhynchus moroccensis (flying reptile) tooth:
Coloborhynchus Tooth
Brachychampsa (Crocodile) Tooth:

Brachychampsa tooth
Revueltosaurus Tooth:
Revueltosaurus tooth

Dinosaur Teeth


Theropod Dinosaur Teeth
Teeth are oriented with the tip down and root up. Not to scale.
Spinosaurus Tooth:
spino tooth
Carcharodontosaurus Tooth:
carcharodont tooth
Giganotosaurus Tooth:
Giganotosaurus tooth
Allosaurus Tooth:
Allosaurus tooth

Tyrannosaurus Tooth:
Trex tooth
African Dromeosaur Tooth:
deltadromeus tooth
Saurornitholestes Tooth:
Saurornitholestes tooth
Acheroraptor Tooth:
Dromeosaur tooth

Dental Batteries
Teeth are oriented with grinding surface up and roots down
Individual Hadrosaur Tooth:
Hadrosaur teeth
Edmontosaurus (a type of Hadrosaur) Dental Battery:
Edmontosaurus

Juvenile Triceratops Jaw (top view):
Triceratops jaw
Triceratops Tooth:
Triceratops tooth

Sauropod Teeth
Teeth are oriented with tips on the right and roots on the left
Camarasaurus Tooth:
camara teeth
Rebbachisaurus Tooth:
Rebbachisaurus teeth
Titanosaur Tooth:
Titanosaur teeth

Ornithischian Dinosaur Teeth
Teeth are oriented with tips down and roots up
Ankylosaurus Tooth:
Ankylosaurus tooth
Edmontonia Tooth:
Edmontonia tooth
Thescelosaurus Teeth (anterior & posterior):
Thescelosaurus toothThescelosaurus posterior tooth
This page last updated 27 June 2025 by Udo M. Savalli ()
Images and text © Udo M. Savalli. All rights reserved.