Calamitopsida - Calamitales

Synonym: Weissia Rothwell and Taylor 1971 [replaced name]

Parent taxon: Calamitales according to A. M. Blazer 1975

Sister taxa: Arthroxylon, Astromyelon, Calamorrhiza, Caudaephyllum, Cingulariaceae, Crinophyllum, Dictyocalamites, Hippurites, Kallostachyaceae, Mazostachys, Myriophylloides, Stachannularia, Szecalamitina, Taphrocanna

Subtaxa: Weissistachys kentuckiense

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Type: Weissia kentuckiense

Distribution: found only at Pennsylvanian-Age Calamitean Cones from Lewis Creek Locality, Kentucky (Carboniferous of Kentucky)

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Specimen images are retrieved through the ePANDDA API.