first valid description

formal description of a new taxon

en-US/ˈfɝst ˈvælɪd dɪˈskɹɪpʃən/
en-GB/ˈfɜːst ˈvælɪd dɪˈskɹɪpʃən/

ক্যাটাগরি:

scientific publicationtaxonomy