This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Trilobite cephalon areas numbered.svg en Diagram showing the detailed areas of the cephalon of trilobite Preocular area Palpebral area Postocular area Posterolateral projection Occipital ring Glabella Posterior area Lateral border Librigenal area Preglabellar area trilobites info Sam Gon III trilobites info File SamGonIIIcephareas