What group of plants dominated the Early Cretaceous environment where Xenoposeidon lived?
Answer
Gymnosperms, including conifers, cycads, and ginkgoes
The environment of the Early Cretaceous period, where Xenoposeidon existed, was characterized by vegetation dominated by gymnosperms. This included significant populations of conifers, cycads, and ginkgoes. Although the emerging angiosperms (flowering plants) were present, the bulk of the available flora consisted of these tougher, less easily digestible gymnosperm types. Survival for a gigantic herbivore like Xenoposeidon depended on its ability to process this abundant but fibrous and chemically defended vegetation.
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