Ananaspis vs Asaphus
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Ananaspis
Ananaspis is an extinct genus of phacopid trilobites in the family Phacopidae, established by Campbell in 1967. It is known from Silurian marine strata, including the Henryhouse Formation of Oklahoma, Upper Silurian deposits in the East Baltic, and Silurian rocks of central Victoria in Australia. The genus is placed in the order Phacopida and has been discussed in studies of phacopid evolution 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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