One group of samples clusters near the inner part of the sine curve, while another group falls on the right edge of the sine curve, indicating two distinct grain size ranges. This sinusoidal pattern in the sediments is a result of a proportional mixture of two sediment size classes, ...
The S.p. plate was pentagonal, longer than wide to wider than long, asymmetric, with a small or large connecting pore, closer to the right margin, united to the edge by a groove, limiting with 5‴ (Figure 2J–L,N). Additionally, the posterior sulcal plate was limiting with the ant...