Coming back to this with Eberron Campaign Setting Stuff:
Medium
2HD
Dinosaur, Clawfoot (ECS); Str +6, Dex +6, Con +4; Run; 40ft speed, Full attack Talons 1d8 + 2 foreclaws 1d3 + bite 1d6
Dinosaur, Fastieth (ECS); Str +4, Dex +2, Con +2; Run; 50ft speed
Large
3HD
Dinosaur, Glidewing (ECS); Str +8, Dex +4, Con +6; Alertness, Flyby Attack; 20ft, Fly 80ft (average)
Horse, Valenar Riding (ECS); Str +4, Dex +4, Con +4; Endurance, Run; 80ft speed