Plate P2. Note: all micrographs of coccoliths are of the proximal view unless otherwise noted as distal (D). All micrographs are from Sample 183-1139A-1R-CC. Pol = polarized electron micrograph, SEM = scanning electron micrograph. Gephyrocapsids in various states of preservation. 1, 2. Characteristic gephyrocapsid interference patterns (Pol). 3. Specimen showing the remnant of a central-area bridge but with elements around the outer periphery distinctly separated by etching (D). 4. Well-preserved specimen with most bridge and shield elements intact (D). 5, 6. Specimens with moderate separation of the proximal and distal shield elements, respectively. 7. Specimen with moderate secondary calcite overgrowth along central area (D). 8. Small specimen with selective separation of some shield elements (possibly a very small Pseudoemeliania lacunosa?) (D). 9. Well-preserved specimen showing no signs of etching.

Plate P2. Note: all micrographs of coccoliths are of the proximal view unless otherwise noted as distal (D). All micrographs are from Sample 183-1139A-1R-CC. Pol = polarized electron micrograph, SEM = scanning electron micrograph. Gephyrocapsids in various states of preservation. 1, 2. Characteristic gephyrocapsid interference patterns (Pol). 3. Specimen showing the remnant of a central-area bridge but with elements around the outer periphery distinctly separated by etching (D). 4. Well-preserved specimen with most bridge and shield elements intact (D). 5, 6. Specimens with moderate separation of the proximal and distal shield elements, respectively. 7. Specimen with moderate secondary calcite overgrowth along central area (D). 8. Small specimen with selective separation of some shield elements (possibly a very small Pseudoemeliania lacunosa?) (D). 9. Well-preserved specimen showing no signs of etching.