Mallagnostus [SEP] parent taxon
in the Eodiscina. Within the Weymouthiidae, "Mallagnostus" belongs to a clade that further includes "Tannudiscus", "Jinghediscus" and the Agnostina.
Distribution.
- "M. limbatus" has been collected from the upper Lower Cambrian of New York, and the Toyonian of the Russian Federation (Obruchev stage, Shivelig Formation, Shivelig-Khem River, Tuva, Altay-Sayan, Siberia, 51.4° N, 94.2° E)
- "M. llarenai" is found in the upper Lower Cambrian of Spain
Mallagnostus
Mallagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the upper Lower Cambrian, with remains found in USA (New York), Canada (Newfoundland), Spain, England, Russia (Tuva, Gorno-Altayskaya), Mongolia, and the lower Middle Cambrian according to fossils from China (Tian Shan) and Russia (Yakutia).
Taxonomy.
"Mallagnostus" was originally described as belonging to the Agnostina, but it is better placed