Classical Hatha Yoga Postures

The traditional number of asanas is symbolically 84, though the Hatha Yoga Pradipika (15th century) describes only 15 postures in detail, with four being considered most important: Siddhasana, Padmasana, Bhadrasana, and Simhasana (Asana - Wikipedia)

The 15 Asanas from Hatha Yoga Pradipika:

1. Swastikasana (Auspicious Pose)
2. Gomukhasana (Cow Face Pose)
3. Virasana (Hero Pose)
4. Kurmasana (Tortoise Pose)
5. Kukkutasana (Rooster Pose)
6. Uttana Kurmasana (Stretched Tortoise Pose)
7. Dhanurasana (Bow Pose)
8. Matsyendrasana (Lord of the Fishes Pose)
9. Paschimottanasana (Seated Forward Bend/Western Stretch Pose)
10. Mayurasana (Peacock Pose)
11. Shavasana (Corpse Pose)
12. Siddhasana (Accomplished Pose/Perfect Pose)
13. Padmasana (Lotus Pose)
14. Simhasana (Lion Pose)
15. Bhadrasana (Gracious Pose/Throne Pose)