The current taxonomy version is ott3.6 (click for more information). See the OTT documentation for an explanation of the taxon flags used below, e.g., extinct
Thucydiaceae gbif:4892628 (irmng:105408) barren, extinct, incertae_sedis, unplaced (OTT id 4737064)
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life > cellular organisms > Eukaryota > Archaeplastida > Chloroplastida > Streptophyta > Embryophyta > Tracheophyta > Euphyllophyta > Spermatophyta > Acrogymnospermae