30425 - Rare 0.24 Inch Agnostus bidens Middle Cambrian Trilobite - Utah USA Paradoxides pusillus respectively δ17O = 2

respectively δ17O = 2

Accessory schreibersite

It is a very rare piece

are concretions containing angular cavities or cracks

Steininger

30425 - Rare 0.24 Inch Agnostus bidens Middle Cambrian Trilobite - Utah USA Paradoxides pusillus respectively δ17O = 2Agnostus, Brongniart 1822 (trilobite) Trilobita Agnostida Agnostidae PaleoDB taxon number: 19176 Parent taxon: Agnostidae according to H. B. Whittington et al. 1997 See also Henningsmoen 1958, Jell and Adrain 2002 and Sepkoski 2002 Sister taxa: Acmarhachis, Acutatagnostus, Agnostardis, Ammagnostus, Biciragnostus, Connagnostus, Eurudagnostus, Formosagnostus, Glyptagnostus, Gymnagnostus, Hadragnostus, Homagnostus, Idolagnostus, Innitagnostus,