description Leiagnostus Overview
Leiagnostus is an extinct genus of agnostid trilobites in the family Agnostidae, established by Otto Jaekel in 1909. It is known from late Cambrian and Ordovician strata, including records from Baltoscandia, central Europe, China, Kazakhstan, and Argentina. The genus is highly effaced: facial sutures and eyes are absent or not expressed, the cephalon is smooth, and the pygidium has weakly defined axial segmentation; its species have been used in Cambrian-Ordovician correlation.
help Leiagnostus FAQ
What kind of trilobite was Leiagnostus?
Leiagnostus was an extinct agnostid trilobite in the family Agnostidae. Agnostids were small, compact trilobites with a head and tail that could look broadly similar.
Who established the genus Leiagnostus?
Otto Jaekel established Leiagnostus in 1909. The genus has since been recorded from late Cambrian and Ordovician strata.
Where are Leiagnostus fossils known from?
Records include Baltoscandia, central Europe, China, Kazakhstan, and Argentina. This wide distribution shows that the genus occurred across several ancient marine regions.
When did Leiagnostus live?
Leiagnostus is known from the late Cambrian and the Ordovician Period. Its fossils therefore span the transition between two major Paleozoic time intervals.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
