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Portlandian Uncommon

Proper Noun

Definitions
Proper Noun
1

The Tithonian stage or age, now considered strata about 150 million years old.

See Also
strata age stage tithonian
Related Terms
Rhyming Words
ian sian jian bian rian dian qian kian vian xian gian lian asian elian brian ilian apian arian avian chian
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Portlandian vs