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Cymbopleura incerta has distinctly dorsiventral valves. Cymbopleura florentina has moderately dorsiventral valves and a wider axial area. Cymbopleura incertiformis var. laterostrata has linear-lanceolate valves and broadly protracted apices. Cymbopleura incertiformis var. linearis has linear valves with subrostrate to cuneate apices. Cymbopleura metzeltinii has rhombic-lanceolate valves.

LM scalebar = 10 µm
Cymbopleura Incertiformis 0 Cymbopleura Incertiformis 0 5 Cymbopleura Incertiformis 1 Cymbopleura Incertiformis 2 Cymbopleura Incertiformis 4 Cymbopleura Incertiformis 7
Length Range
29.5-60.7 µm
Width Range
7.0-9.4 µm
Striae in 10 µm
14-17 at the valve center, 20-24 at the ends on the dorsal side

Cymbopleura incerta

(Grunow) Krammer 2003

Cymboincerta2 Cymboincerta3 Cymboincerta5 Cymboincerta6 Cymboincerta7
Length Range
31-58 µm
Width Range
7.3-10.2 µm
Striae in 10 µm
15-16 at the valve center, 18-20 near the apices

Cymbopleura incertiformis var. laterostrata

Krammer 2003

Cymbopleura inceriformis v laterostrata LM1 Cymbopleura inceriformis v laterostrata LM2 Cymbopleura inceriformis v laterostrata LM3 Cymbopleura inceriformis v laterostrata LM4 Cymbopleura inceriformis v laterostrata LM5 Cymbopleura inceriformis v laterostrata LM6
Length Range
29.6-45.9 µm
Width Range
5.9-6.9 µm
Striae in 10 µm
16-18 at the valve center, about 20 at the ends on the dorsal side

Cymbopleura incertiformis var. linearis

(Fontell) Krammer 2003

Cymbopleura incertiformis var. linearis LM1 Cymbopleura incertiformis var. linearis LM2 Cymbopleura incertiformis var. linearis LM3 Cymbopleura incertiformis var. linearis LM4 Cymbopleura incertiformis var. linearis LM6 Cymbopleura incertiformis var. linearis LM7
Length Range
41.8-55.5 µm
Width Range
6.5-8.9 µm
Striae in 10 µm
15-17 at the valve center, 20-24 at the ends on the dorsal side

Cymbopleura florentina

(Grunow) Krammer 2003

Cymbopleura florentina LM1 Cymbopleura florentina LM2 Cymbopleura florentina LM3 Cymbopleura florentina LM4 Cymbopleura florentina LM5 Cymbopleura florentina LM6
Length Range
36.1-64.3 µm
Width Range
7.9-11.9 µm
Striae in 10 µm
11-15 at the valve center, 16-19 near the apices on the dorsal side

Cymbopleura metzeltinii

Krammer 2003

Cymbopleura metzeltinii LM3 Cymbopleura metzeltinii LM4 Cymbopleura metzeltinii LM5 Cymbopleura metzeltinii LM1 Cymbopleura metzeltinii LM2
Length Range
30-61 µm
Width Range
7.6-10.3 µm
Striae in 10 µm
15-17 at the valve center, 18-21 at the ends

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