Equisetopsida - Sphenophyllales

Parent taxon: Sphenophyllales according to H. N. Andrews 1970

Sister taxa: Anastachys, Bowmanites, Elaterites, Eviostachya, Koinostachys, Litostrobus, Mesidiophyton, Siderella, Sphenophyllaceae, Sphenophyllostachys, Sphenophyllum

Subtaxa: Stylocalamites arborescens

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Type: Volkmannia arborescens

Distribution: found only at Zhungeerqi, eastern (Permian of China)

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Specimen images are retrieved through the ePANDDA API.