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Seed pods Bob Campbell Geology Museum
Sequoia (Sequoia sp.) seed cone Bob Campbell Geology Museum 66 million years old; Formation: Hell Creek Formation.
Spruce (Picea sp.) Bob Campbell Geology Museum
Spruce pine (Picea sp.) Bob Campbell Geology Museum Formation: Willapa Formation
Sweet gum (Liquidambar sp.) Bob Campbell Geology Museum Formation: Green River Formation.
Sycamore (Platanus sp.) Bob Campbell Geology Museum 60 million years old; Formation: Ludlow Formation.
Walnut (Juglans sp.) Bob Campbell Geology Museum