Tetrapodophis (The First Snake) ISN’T A SNAKE!? – Plus Paleontological Colonialism At Work
2,013The evolution of snakes has long been one of the most contentious evolutionary transitions in vertebrate evolution. Snakes definitely originated from reptiles with limbs, but exactly which ones remains a mystery. To date, no definitive robust evidence of a four-limbed snake ancestor has been found. That seemed like the case until a small fossil of a snake-like reptile was uncovered in Brazil and described in 2015 as Tetrapodophis. Now a new study has put forth evidence that the thing was neither snake nor lizard. What the hell was it and why did it take so long? Come with me and journey through the story of the four-legged snake Tetrapodophis.
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RESEARCH
Martill, D. M., Tischlinger, H. & Longrich, N. R. 2015. A four-legged snake from the Early Cretaceous of Gondwana. Science, 349, 416–419.
Michael W. Caldwell, Tiago R. Simões, Alessandro Palci, Fernando F. Garberoglio, Robert R. Reisz, Michael S. Y. Lee & Randall L. Nydam (2021) Tetrapodophis amplectus is not a snake: re-assessment of the osteology, phylogeny and functional morphology of an Early Cretaceous dolichosaurid lizard, Journal of Systematic Palaeontology, DOI: 10.1080/14772019.2021.1983044
Stemwedel, Janet D. “Laws Restricting Fossil Collection Can Be Good for Science.” Forbes, Forbes Magazine, 25 July 2015, https://www.forbes.com/sites/janetstemwedel/2015/07/25/laws-restricting-fossil-collection-can-be-good-for-science/?sh=63e0bb16d6c1.
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