Parent taxon: Coniferophyta according to H. N. Andrews 1970
Sister taxa: Abietoxylon, Abiocaulis, Albertia, Alloxylon, Anomaloxylon, Arctoxylon, Benstedtia, Borysthenia, Callitrites, Calloxylon, Cedrophloios, Ceratostrobus, Cheirostrobus, Cladocupressoxylon, Coniferales, Coniferoxylon, Cordaitales, Cormaraucarioxylon, Cormocedroxylon, Cormocupressoxylon, Cryptomerites, Cupressoxylon, Cycadocarpidium, Dammarophyllum, Dictyodendron, Eleoxylon, Eurysacis, Germaria, Glyptolepidium, Glyptostroboxylon, Hiltonia, Krauselcladus, Lebachia, Legnophora, Legnophora girardi, Libocedrites, Lutuginia, Macrostachya, Metacedroxylon, Paleotaxites, Paraphyllocladoxylon, Parapinuxylon, Phleboxylon, Phyllocladopitys, Phyllostrobus, Pityites, Pityocladus, Platyspiroxylon, Protobrachyoxylon, Protocedroxylon, Protojuniperoxylon, Protopinuxylon, Protopodocarpoxylon, Pseudoaraucarites, Pseudotaxodioxylon, Retinoxylon, Rhizocedroxylon, Rhizotaxodioxylon, Sboromirskia, Spiroxylon, Storgaardia, Swedenborgia, Taxeopsis, Taxoxylon, Taxoxylum, Thylloxylon, Trematoxylon, Walchia, Walchiostrobus, Zamioidea
Subtaxa: Protopiceoxylon extinctum
Type: Protopiceoxylon extinctum
Distribution: there are no occurrences of Protopiceoxylon in the database
Specimen images are retrieved through the ePANDDA API.
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