The earliest snake fossil considered a member of the "true snakes" (Serpentes) discovered so far is Haasiophis terrasanctus.
Here's a breakdown:
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The Significance of Haasiophis terrasanctus: This snake fossil, dating back to the Late Cretaceous period (Cenomanian age, approximately 112 to 94 million years ago), offers valuable insights into the evolutionary history of snakes. It was found in the West Bank.
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Why It's Important: Haasiophis belonged to the Simoliophiidae family, which represents some of the oldest known true snakes. This discovery sheds light on the origins and early diversification of snakes.
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Key Characteristics: While Haasiophis terrasanctus possessed some snake-like features, it also retained some hind limbs, indicating a transitional stage in snake evolution from limbed ancestors.
Therefore, while older snake-like fossils exist, Haasiophis terrasanctus is currently considered the earliest-known true snake discovered, based on the crown group Serpentes classification.
