This first agnostid trilobite is Lotagnostus which is from the Upper Cambrian. Lotagnostus trisectus can be found near the Malvern Hills. It is sometimes known as Agnostus trisectus.
This agnostid trilobite is Eodiscus punctatus, from the Middle Cambrian. It can be found in Wales and is sometimes referred to as Microdiscus punctatus.