Asaphida
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.
7 branches of this order, most-observed first
Asaphidae
familyAsaphidae
Cyclopygidae
familyCyclopygidae
Trinucleidae
familyTrinucleidae
Ptychaspididae
familyPtychaspididae
Asaphoidea
superfamilyAsaphoidea
Anomocaridae
familyAnomocaridae
Dikelocephalidae
familyDikelocephalidae
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Asaphida in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 317829.