Yemen
| Country: | Yemen |
| Type: | Postage stamps |
| Series: | Prehistorical Animals |
| Nominal: | 40 Yemeni fils |
| Year: | 1990 |
| Perforation: | comb 12½ x 12 |
Prehistorical Animals
 Protembolotherium 0.08$ |  Diatryma 0.08$ |  Mammmoth 0.1$ |  Edaphosaurus |
 Dimorphodon 0.21$ |  Phororhacos 0.24$ |  Ichthyosaurus |