Type Species

Micula prinsii Perch-Nielsen, 1979

Etymology

In honour of Dr A. R. Bowman, nannofossil specialist, Alabama, U.S.A., in recognition of his contributions to taxonomy and biostratigraphy of calcareous nannofossils.

Diagnosis

Cuboid or stellate calcareous nannofossils have blocks of crystals arranged in an intriguing pattern. A small central cross, with its arms aligned diagonally, often occupies the central area.

Description

Optical Properties: The blocks of Bowmania exhibit parallel extinction with length-slow (+) elongation.

Remarks

Bowmania differs from Micula by having blocks with length-slow (+) elongation, whereas Micula has blocks with length-fast (-) elongation.

References

Varol, O. 2025a. A practical guide to optical studies of calcareous nannofossils. Grzybowski Foundation Special Publication. 29: 1-222