Craticula cuspidata has narrower apices and a central area with concave sides. Craticula pampeana is much larger and has broader apices.

LM scalebar = 10 µm
Length Range
94-168 µm
Width Range
22-29 µm
Striae in 10 µm
12-14
Cratacid1
Cratacid2
Cratacid3
Cratacid4
Cratacid5
Cratacid6
Cratacid7
Cratacid1 Cratacid2 Cratacid3 Cratacid4 Cratacid5 Cratacid6 Cratacid7

Craticula cuspidata

(Kütz.) D.G.Mann 1990

Length Range
95-157 µm
Width Range
24-36 µm
Striae in 10 µm
12-14 transverse, 24-26 longitudinal
C Cuspidata Gray 1 C Cuspidata Gray 5 C Cuspidata Gray 4 C Cuspidata Valve Forms Gray C Cuspidata Gray 3 C Cuspidata Gray 2

Craticula pampeana

(Freng.) Lange-Bert. 2003

Length Range
139-274 µm
Width Range
29-45 µm
Striae in 10 µm
10-12
Craticula pampeana LM4 Craticula pampeana LM2 Craticula pampeana LM3 Craticula pampeana LM1 Craticula pampeana LM5

Craticula coloradensis

Edlund, D.R.L.Burge and S.A.Spauld. 2017

Length Range
101-162 µm
Width Range
22.5-26.7 µm
Striae in 10 µm
transverse striae 11.9-14.3; longitudinal striae 20.0-23.8
Craticula coloradensis LM5 Craticula coloradensis LM4 Craticula coloradensis LM7 Craticula coloradensis LM6 Craticula coloradensis LM3 Craticula coloradensis LM2 Craticula coloradensis LM1