1. Edaphosaurus; dimetrodon
   - order Pelycosauria

Type of: animal order

Part of: subclass Synapsida, Synapsida

Encyclopedia: Pelycosauria

• orange-colored
• orange-coloured
• orange-flowered
• orange-hued
• orange-juice concentrate
• orange-red
• orange-sized
• orangeade
• Orangeism
• Orangeman
• orangeness
• orangery
• orangewood
• orangish
• orangish-red
• orangutan
• orangutang
• Orasone
• orate
• oration
• orator
• oratorical
• oratorio
• oratory
• oratrix