Draw the largest sediment that fits through the midpoint between the crenulations (shown in purple).
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For reference, draw the round sediment with a diameter the vertical distance of the shell opening (green circles).
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191217-brachiopod_fossil.jpg
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中心:
寬:
角度:
高度:
不透明度:
17
Equations to draw the edges of both shells. (Recommended: Do Not Change)
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技術支援
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