description Aphelaspis Overview
Late Cambrian trilobite defining the Aphelaspis biozone, a key stratigraphic marker for the Steptoean Stage in the North American Cambrian time scale.
help Aphelaspis FAQ
What is Aphelaspis?
Aphelaspis is a Late Cambrian trilobite. It is used as the defining fossil for the Aphelaspis biozone.
What is the Aphelaspis biozone?
The Aphelaspis biozone is a stratigraphic interval identified using Aphelaspis fossils. It is an important marker for the Steptoean Stage in the North American Cambrian time scale.
When did Aphelaspis live?
Aphelaspis lived during the Late Cambrian. The catalog description links it specifically with the Steptoean Stage rather than giving a single exact calendar date.
Why do geologists study Aphelaspis?
Geologists study Aphelaspis because it helps identify and correlate Late Cambrian rock layers. Its role in defining a biozone gives it value beyond its appearance as an individual fossil.
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