Walchia

fossil plant genus

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July 15, 2026

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Walchia is a genus of fossil coniferous trees that lived during the Permian and Triassic periods. These trees resembled modern-day araucarias and had short, triangular leaves arranged in a spiral pattern. Their cones were ovate with persistent, ovate scales. Walchia is considered a significant genus in understanding the evolution of conifers, with related genera like Lebachia being potential ancestors to extant conifers. The study of fossil plants like Walchia contributes to our understanding of ancient ecosystems and plant evolution.123

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conifer
Annotated classification
…resembled that of araucarians; include Walchia, Voltzia, and Voltziopsis. †Family Cheirolepidiaceae Mesozoic; scales shed from the cone together with the seeds; large bracts remain attached to the axis in a semblance of a complete cone; distinctive pollen, called Classopollis; foliage resembles that found in the modern Cupressaceae; great variety of…
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…resembled that of araucarians; include Walchia, Voltzia, and Voltziopsis. †Family Cheirolepidiaceae Mesozoic; scales shed from the cone together with the seeds; large bracts remain attached to the axis in a semblance of a complete cone; distinctive pollen, called Classopollis; foliage resembles that found in the modern Cupressaceae; great variety of…
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