Archaeagnostus

{{Short description|Extinct genus of trilobites}}

{{Automatic taxobox

| fossil_range = {{fossilrange|510|507|terminal Toyonian to early Amgaian (Nephrolenellus multinodus-zone, Ovatoryctocara granulata-zone, earliest Kounamkites-zone)}}

| image =

| image_caption =

| taxon = Archaeagnostus

| authority = Kobayashi, 1939

| subdivision_ranks = Species

| subdivision =

• A. primigeneus Kobayashi, 1939(Type)
• A. evansi Rasetti and Theokritoff, 1967
• A. majiangensis Lu, 1974

}}

Archaeagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from the terminal Toyonian to early Amgaian. Species belonging to this genus have been found in Eastern North America, the Newfoundland in Canada, the Henson Gletscher Formation in Greenland, the Nekekit and Molodo Rivers in Eastern Siberia, and in Guizhou, China.{{cite journal|last= Naimark|first= E.B.|year= 2012|title= Hundred species of the Genus Peronopsis Hawle et Corda, 1847|journal= Paleontological Journal|volume= 46|issue= 9|pages= 945–1057|doi= 10.1134/S0031030112090018|bibcode= 2012PalJ...46..945N|s2cid= 85130465}}

File:Gradogram Archaeagnostus.jpg