†Protonyssa Reid and Chandler 1933
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Angiospermae - Cornales - Nyssaceae
Parent taxon: Nyssaceae according to H. N. Andrews 1970
Sister taxa: Camptotheca, Davidoidea, Lucknowia, Nyssa, Nyssites, Nyssoidea, Nyssoxylon, Palaeonyssa, Paleodavidia, Pseudonyssa, Tsukada
Subtaxa: Protonyssa bilocularis
Ecology: "photoautotroph"
Distribution: found only at The London Clay Flora - Herne Bay (Eocene of the United Kingdom)
Specimen images are retrieved through the ePANDDA API.
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