Paleocene
Jun 08, 2019
This stellate and hexagonal form is rarely recorded in Late Paleocene sediments and shows similarity to Didemnid Ascidian spicules. In Plan view, it is strongly birefringent and its c-axis is axial. The jointed part of the segments raised to form a hexagonal structure (similar to sutural ridges) without protrusion and its apices aligned with the inter ray area of the stellate form. It is also strongly birefringent at the side view and only one cycle is visible. One side is more convex than the other.
Set number: 3
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10µm
In mobile mount