Spinicaudatans from the Upper Jurassic of Argentina and their paleoenvironments
- Monferran, Mateo Daniel
- Cabaleri, Nora Graciela
- Gallego, Oscar Florencio
- Armella, Claudia
- Cagnoni, Mariana Celina
DOIAbstract
Spinicaudatans are a diverse and geographically widespread group of small branchiopod crustaceans with an excellent fossil record. They inhabit ephemeral freshwater habitats with warm conditions and pH levels from neutral to alkaline. Many studies have been performed on the systematics of this group, also known as ´conchostracans´, although the paleoecology of these clam shrimp has not been widely analyzed. This paper examines some aspects of the relationship between spinicaudatans and their environments from the Upper Jurassic (Canadon Asfalto Formation) of Argentina. We used sedimentological analysis to infer paleoenvironmental factors. Spinicaudatan features were also measured, including carapace size, growth band width, and growth lines...
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