Richard C. Hulbert

1955

• Calippus and protohippus (mammalia, perissodactyla, equidae) from the Miocene (Barstovian-early Hemphillian) of the Gulf Coastal Plain
• Cenozoic vertebrates of the Americas
• Cormohipparion and Hipparion (Mammalia, Perissodactyla, Equidae) from the Late Neogene of Florida
• The fossil vertebrates of Florida