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spanning approximately 21 million years
• Devonian of Australia (2)
Upper Duboviki Formation
Osteichthyes - Teleostei - Aspidorhynchidae
Their fossils are found in present day Morocco
30741 - Partial Prepared 2.94 Inch Dicranurus monstrosus Lower Devonian Trilobite Ptychagnostus cuyanus spanning approximately 21 million yearsDicranurus sp. Conrad 1841 (trilobite) Trilobita Lichida Odontopleuridae Parent taxon: Odontopleuridae according to H. B. Whittington 1956 See also Jell and Adrain 2002 and Sepkoski 2002 Sister taxa: Acidaspidinae, Apianurinae, Borkopleura, Ceratocephalinae, Ceratonurus, Chlustinia, Dudleyaspis, Eoleonaspis, Exallaspis, Gaotania, Hispaniaspis, Isoprusia, Ivanopleura, Koneprusia, Koneprusiinae, Laethoprusia, Meadowtownella, Miraspidinae,
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