Bumastus vs Asaphus
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Bumastus
Bumastus is an extinct genus of Silurian trilobites in the family Illaenidae. Its inflated, smooth exoskeleton has weakly expressed segmentation, producing a rounded profile that distinguishes it from more strongly furrowed trilobites. Species are known from marine rocks in North America and Europe, including reef-associated Silurian deposits. The genus is useful for recognizing illaenid form and...
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Asaphus
Asaphus is a genus of trilobite from the Ordovician period, belonging to the family Asaphidae, with fossils primarily found in the Baltic region including Russia, Estonia, and Sweden. Several species within the genus developed prominent stalked eyes, with Asaphus kowalewskii bearing eyestalks that can reach several centimeters in height. These elongated eyes are thought to have been an adaptation...
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