lamp shells in Podcasts
personA group of marine invertebrates with a calcareous shell, related to modern mollusks, dating back to the Cambrian period.
Mentions Over Time
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mentions
Mentions in Podcasts
The Ancients
The Cambrian Explosion: When Life Began?
So back in Cambrian, there were these shellfish-like things called brachiopods, which had two shells, but they were an up and a down shell.