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This 21st century edition of Julius von Pia's 1912 memoir entitled "Neue Studien uber die triadischen Siphoneae verticillatae" is brought to you by B. Granier (editing, photomicrographs) and N.J. Sander (translation). The artwork is due to A. Lethiers and B. Granier. The original 24 text-figures and 7 plates [II-VIII] were converted into 125 discrete photomigraphs, 5 figures and 56 videos.

The XXIst Century (the 100th Anniversary) Edition of the "New studies on Triassic Siphoneae verticillatae" by Julius von PIA