Snakes you have never seen before
Solid fossil record is quite poor because snake skeletons are typically small and fragile, making the fossils are not common. Fossils can be identified as solid (although usually maintaining the hindquarters) first appeared in the fossil record in the Cretaceous.  The earliest fossils known snake was found at the sites in Utah and Algeria region, representing respectively for expenditure Coniophis and Lapparentophis. The fossil is thought to correspond dating Alba floor or floors Cenomanum (though not sure) in the late Cretaceous Period, about 112 to 94 Ma. However, dating back even earlier than had been proposed for one of the sites in Algeria, can stock up to the level corresponding to the floor Apt, 125 to 112 Ma.
Based on comparative anatomy, it is the consensus that snakes descended from a group of lizards. It also said that in their python Boidae Pythonidae and is the most primitive group of modern-snakes they form traces of hind limbs: tiny toes with claws called anal spurs , get them used to turn to, while mating. : 11  the typhlopidae they leptotyphlopidae and also traces of pelvic girdle, sometimes appearing as horny protrusions substance when looking see.
All currently known snake species are no forelimbs. This is due to the evolution of the HOX genes, controlling the forming limbs. The spine of the common ancestor of snakes, like most other four-legged animals, there are specialized areas including spine, chest, waist, and (pots) and tail. From the beginning of the evolution of snakes, the expression of HOX genes in the spinal cord responsible for the development of thoracic vertebrae has prevailed. The result is all the vertebrae in front of hind limb buds (when present) are the same type of recognition like thoracic vertebrae (except from the vertebrae, vertebral axis and 1-3 neck vertebrae ). In other words, the majority of the solid skeleton can be seen as an extremely long pull chest. The ribs are only found on the thoracic vertebrae. The cervical spine, lumbar and pelvis were greatly reduced in volume (only 2-10 lumbar vertebrae and pelvic), while only traces of the caudal vertebrae short. However, the tail is still long enough to have important uses in many species, and it is modified in some aquatic species or tree-dwellers.
The modern snakes have diversified significantly in Paleocene. This goes along with distribution adapting block of mammals, immediately after the dinosaur extinction event of non-bird. The snakes of the family Colubridae, one of the most common solid group, have become extremely diverse because their food is rodents, a group of mammals particularly successful.