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Guide to Neidium bobmarshallense

Bahls 2013

Neidium Bobmarshallensis Guide
Credit: Loren Bahls
  1. Valves lanceolate
  2. Central area diagonal
  3. Striae diagonal

Valves are lanceolate, 14-18 µm wide. The central area is diagonal. Striae are also diagonal and number 13-15 in 10 µm. The proximal raphe ends are hooked in opposite directions.