Rarity Cephalopod Fossil Spiroceras sanbartolomense Positive & Negative Bolivia

Description

Rarity Cephalopod Fossil Spiroceras sanbartolomense Positive & Negative Bolivia
This Cephalopod fossil
displays both sides of the positive/negative nodule-concretion.
It hasn't been repaired and
is without restoration, showing natural textures and colors. Same concretion contains trilobite head and gastropod.
Species:
Spiroceras sanbartolomense (Kozlowski 1923)
Geological time:
Devonian (416 to 359,2 million years ago)
Origin:
Patacamaya (Departament of La Paz) Bolivian Altiplano.
Stratigraphy:
Belen Formation.
Measures:
-Long: 39 mm
-Wide: 24 mm
-Weight: 107 grams
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