phragmocone
- noun
- /ˈfræɡməˌkoʊn/
- Specialized
- The fossilized phragmocone of the belemnite revealed its internal chambered structure.
Examples
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Paleontologists examined the curvature of the phragmocone to identify the species.
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A well-preserved phragmocone can provide insights into the habitat of ancient cephalopods.
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The phragmocone of the belemnite is well preserved.
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Researchers found several phragmocones in the fossil bed.
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A well-preserved phragmocone can provide insights into the habitat of ancient cephalopods.
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Paleontologists examined the curvature of the phragmocone to identify the species.
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The fossilized phragmocone of the belemnite revealed its internal chambered structure.
Synonyms
A thin cone-shaped inner shell with chambers that helped an extinct sea animal like a squid float
Surface Forms
Etymology
Phragmocone comes from Greek parts phragm- meaning 'fence' or 'partition' and -cone meaning 'cone'. A helpful way to remember it is to imagine a cone with 'fenced' chambers inside, because the phragmocone is the thin, cone-shaped internal shell made of separate chambers.