Category:Triassic formations in the United States
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Countries of North America: Canada · Mexico · United States of America‡
‡: partly located in North America
‡: partly located in North America
Subcategories
This category has the following 18 subcategories, out of 18 total.
Media in category "Triassic formations in the United States"
This category contains only the following file.
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Early Triassic stratigraphic distribution of the earliest archosaurs.png 2,411 × 903; 6.24 MB