Name - Ptychagnostus atavus (Tullberg 1880)

Life Sciences Identifier (LSID)

urn:lsid:organismnames.com:name:436087 [metadata]

Variants and Synonyms

• Ptychagnostus atavus

• Ptychagnostus mesostatus Opik 1979

• Ptychagnostus atavus (Tullb.)

• Ptychagnostus atavus (Tullberg)

Reported Taxonomic Ranks

Species

Reported Taxonomic Hierarchies

Recent Publications

• Taxonomy of Ptychagnostus atavus: a key trilobite in defining a global Cambrian stage boundary.
• Middle Cambrian trilobites of the suborders Agnostina and Eodiscina from the Oslo region, Norway.
• Cambrian series 3 agnostoid trilobites Ptychagnostus sinicus and Ptychagnostus atavus from the Machari Formation, Yeongwol Group, Taebaeksan Basin, Korea.
• [Ptychagnostus atavus (Tullberg, 1880) (Trilobita: Agnostida) of the Middle Cambrian (Miaolingian-Drumian) of Arivechi, Sonora, Mexico: biostratigraphic significance.]
• BIOSTRATIGRAPHY AND TAXONOMY OF DRUMIAN ( MIDDLE CAMBRIAN) AGNOSTID TRILOBITES OF THE MANUELS RIVER FORMATION, AVALONIAN NEWFOUNDLAND, CANADA.

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