Original Description The subcylindrical skeleton is about 150 μm long. There is an unusually large distance between the outer wall and the central layers of the shell. In many specimens the outer wall is absent, either due to breakage or incomplete development. The central shell shows caps, which are arranged one on top of the other, so the shell looks like a biconcave lens in cross- section. The thin outer wall is perforated by large circular pores of irregular size, which lack frames. It is connected with the central shell by long spines. A pylome is not obvious. Late Miocene specimens become more spongy. Etymology: Derivation of name. In reference to the extended external shell or mantle, which gives this form a ‘majestic dignity or grandeur’ (Webster’s New Collegiate Dictionary). Extra details from original publication
Remarks. As noted under L. pylomaticus, L. augusti appears to evolve into L. pylomaticus in the Late Miocene. Transitional forms are noted separately in the range chart (Table 1).
Lazarus, D., Faust, K. & Popova-Goll, I. (2005). New species of prunoid radiolarians from the Antarctic Neogene. Journal of Micropalaeontology. 24(2): 97-121. gsVO
Larcopyle augusti compiled by the radiolaria@mikrotax project teamviewed: 29-5-2023