Compare Craticula coloradensis
Compare
Craticula coloradensis can be distinguished from other large Craticula taxa by its fusiform valve shape and unprotracted ends. Craticula cuspidata has valves that are more strongly tapered and have a higher transapical stria density. Craticula acidoclinata has narrow, rostrate apices and weakly radiate transapical striae. Craticula johnstoniae has narrower valves with rostrate to subcapitate ends, narrower breadth, a higher transapical stria density and an expanded central area. Craticula pampeana has much larger valves, slightly protracted, rounded apices and a lower transapical stria density. Craticula sardiniana has smaller valves with broadly rounded, subrostrate apices and an expanded central area.
LM scalebar = 10 µm
Length Range
101-162 µm
101-162 µm
Width Range
22.5-26.7 µm
22.5-26.7 µm
Striae in 10 µm
transverse striae 11.9-14.3; longitudinal striae 20.0-23.8
transverse striae 11.9-14.3; longitudinal striae 20.0-23.8
Craticula johnstoniae
Length Range
78-105 µm
78-105 µm
Width Range
18.0-19.3 µm
18.0-19.3 µm
Striae in 10 µm
14 (center) to 17 (apices); 10-15 Heribaudii stage
14 (center) to 17 (apices); 10-15 Heribaudii stage
Craticula cuspidata
Length Range
95-157 µm
95-157 µm
Width Range
24-36 µm
24-36 µm
Striae in 10 µm
12-14 transverse, 24-26 longitudinal
12-14 transverse, 24-26 longitudinal
Craticula sardiniana
Length Range
68-113 µm
68-113 µm
Width Range
15.6-19.5 µm
15.6-19.5 µm
Striae in 10 µm
14 (middle) to 18 (ends)
14 (middle) to 18 (ends)