What does periostraca mean?
Periostraca means plural of periostracum.
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Pronunciation varies by accent · noun
plural of periostracum.
Use periostraca when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Periostraca means plural of periostracum.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use periostraca where its definition matches the intended context.
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