Baltoy (Japanese: ヤジロン Yajilon) is a dual-type Ground/Psychic Pokémon introduced in Generation III.
It evolves into Claydol starting at level 36.

Baltoy is a small Pokémon that resembles a tan figurine made out of clay or mud. There are arching, red markings over its eyes, which usually appear closed. A red stripe encircles its body, and forms a ring on its belly. It has flat appendages that resemble arms. A spike protrudes from the top of its head and another, smaller spike under its body. It moves by spinning on this single, pointed foot, and balance upright on it to sleep. Baltoy is usually found in ruins and old graveyards, where it congregates with its own kind and cries noisily. Old cave wall paintings depict it living with people in ancient times.

Until now,no other Pokémon has the same type combination as Baltoy and its evolution.
(The above content is from the bulbapedia.)