Description of excavation scientists as a new kind of extinct turtle Craspedochlist Based on a wonderful fossil shell and some post -skull bones from Colombia.
Technical reconstruction Craspedochelys Renzi The shallow marine ecosystem where it lives; Forelimbs like FlipPler depends on the most completely well -known Thalassochelydian so far,. Thalassmiys Bruntrutana. Credit image: Juan Geraldo.
Craspedochelys Renzi He lived during the era of the early chalk era, between 132 and 125 million years.
The old species were a kind of Thalassochelydian, a group of air -conditioned sea turtles of modern and chalk.
“Throughout their development, various groups of turtles are not related to adapting to live in sea and luggage environments.
“One of these groups is called Tharassochelydia, which was traditionally formed by three Jurasic: Eureysternidae, PleSiochelyidae and Thassmyedaee, with indispensable and controversial relationships.”
“Among the three families that form Thaassochelydians,” PleSiochelyidae “is one of the most diverse species, including at least ten types in four different races: Craspedochlistand attractiveand PortlandsAnd Topidemys“
“Plesiochelyids” can be distinguished from the other tallasuchilians by showing large sizes (Carapace length from 40 to 55 cm), and the absence of Fontanelles carapacial in adults, bone bridge, and at most, central fantanil. “
Craspedochelys Renzi It is represented by a articulated shell with some post -skull bones. Credit image: Kadina And others. , Two: 10.1186/S13358-025-00394-1.
The fossil sample from Craspedochelys Renzi It was initially discovered by the Swiss geologist Otto Reigns during a field business trip to the Konya de Coaza region, the Ministry of Gigraera in Colombia in the fifties.
The sample included a partial shell (25.5 cm in length and 23.1 cm in width), Hindlimb bones, and fluffy vertebrae.
After that, it was sheltered in the excavation sets at the Naturhistorischeshes Basel, Switzerland, where it has been forgotten for more than 60 years in the cabinets of fossil invertebrate groups.
The excavation scientists said: “Geological evidence links the sample to the formation of Muina, which is a shallow naval deposit from Hotirivian.”
Al -Ahfouri represents the smallest known record so far for Thalassochelydians all over the world, from Hauteivian, and the second record of the group outside Europe.
“discovery Craspedochelys Renzi It represents a great contribution to the understanding of Thaassochelydian, especially “PleSiochelyid” turtles, and the expansion of its geographical scope to the Northern Gonduana and its temporal group in the Hotrerevian, “said researchers.
“This discovery emphasizes the importance of reassessing historical groups and highlights the capabilities of future discoveries in unstable regions such as Northern South America.”
“presence Craspedochelys Renzi In the formation of Moina, it also emphasizes the history of the complex geographical geography of coastal and sea turtles during the early chalk era. “
“It also provides new visions about the evolutionary dynamics of Thassochelydia and unstable and unstable evolutionary relations within the group, issues that guarantee more in -depth investigation in future studies.”
discovery Craspedochelys Renzi It was reported in a paper in The Swiss Journal of Cases Science.
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to. Kadina And others. 2025. The first thing that happened from the “Plesiochelyidae” sea turtles in the Cretaceous period in the early South America. Swiss J Palaeontol 144, 52; Second: 10.1186/S13358-025-00394-1