Field Photos From The Tucson Mountains 10/2000

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Phylum: Echinodermata
Subphylum: Echinozoa
Class: Echinoidea
Echinoid Plate
Location: Tucson Mountains.
Age: Mid to late Permian
Formation: Rain Valley
Phylum: Echinodermata
Subphylum: Echinozoa
Class: Echinoidea
Sea Urchin Spine
Location: Tucson Mountains.
Age: Mid to late Permian
Formation: Rain Valley
Phylum: Echinodermata
Subphylum: Echinozoa
Class: Echinoidea
Sea Urchin Spine
Location: Tucson Mountains.
Age: Mid to late Permian
Formation: Rain Valley
Phylum: Echinodermata
Class: Crinoidea
Crinoid Section with Urchin Spines and Branching Bryozoa
Location: Tucson Mountains.
Age: Mid to late Permian
Formation: Rain Valley
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