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  1. Stratigraphic Occurrences/

Silica Formation

Euomphalina

Platyceras bucculentum
Platyceras carinatum
Platyceras thetis

Monobathrida

Corocrinus nodosus

Orthotetida

Eoschuchertella arctostriata

Phacopida

Eldredgeops rana

Rynchonellida

Eumetabolotoechia multicostatum

Spiriferida

Ambocoelia umbonata
Cyrtina hamiltonensis
Mediospirifer audaculus
Mucrospirifer mucronatus
Mucrospirifer profundus
Mucrospirifer prolificus
Paraspirifer bownockeri

Strophomenida

Arcuaminetes scitulus (Hall, 1857)
Devonochonetes coronatus