Asaphida
Extinct order of trilobites / From Wikipedia, the free encyclopedia
"Loganellidae" redirects here. Not to be confused with Loganelliidae.
Asaphida is a large, morphologically diverse order of trilobites found in marine strata dated from the Middle Cambrian until their extinction during the Silurian. Asaphida contains six superfamilies (Anomocaroidea, Asaphoidea, Cyclopygoidea, Dikelocephaloidea, Remopleuridoidea and Trinucleioidea), but no suborders. Asaphids comprise some 20% of described fossil trilobites.
Quick Facts Scientific classification, Superfamilies ...
Asaphida | |
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Asaphus lepidurus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | †Trilobita |
Subclass: | †Librostoma |
Order: | †Asaphida Fortey & Chatterton, 1988 |
Superfamilies | |
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In 2020, the superfamily Trinucleioidea was proposed to be raised to an order (Trinucleida) and removed from Asaphida.[1]