Shell surface with thick beading or thick mesh-like appearance.
01a. Egg with obvious protruding bi-polar plugs, collar around plugs, shell surface with thick beading or thick mesh-like appearance.
Shell very folded in cross-section, shell surface with large irregular shaped pits.
01b. Egg with non-protruding bi-polar plugs, no collar around plugs, Shell very folded in cross-section, shell surface with large irregular shaped pits.
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