Tremadocian trilobites from the Nochixtlan Region, Oaxaca, Mexico

R. A. Robison, and J. Pantoja-Alor

1968

Article

Journal of Paleontology 42(3):767-800

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Taxa discussed in this work:

• Akoldinioidia sulcatus
• Angelina hyeronimi
• Angelina spinosa
• Arionellus
• Asaphellus artus
• Asaphellus aspinus
• Asaphellus communis
• Asaphellus homfrayi
• Bienvillia grandis
• Bienvillia tetragonalis
• Bifodina
• Bifodina longifrons
• Colpocoryphoides
• Geragnostidae
• Gymnagnostus
• Gymnagnostus congros
• Gymnagnostus mexicanus
• Hemigyraspis
• Hemigyraspis affinus
• Leptoplastides mariana
• Leurostega
• Leurostega aphelix
• Micragnostus curvata
• Oleninae
• Onychopyge riojana
• Onychopyge sculptura
• Parabolina argentina
• Parabolinella argentinensis
• Parabolinella hecuba
• Parabolinella limitis
• Parabolinella prolata
• Parabolinella tumifrons
• Parabolinella variabilis
• Peltocare norvegicum
• Pelturinae
• Pharostomina mexicana
• Plicatolinella
• Plicatolinella ocula
• Plicatolininae
• Prionopyge
• Remopleurididae
• Richardsonella variagranula
• Saukia globosa
• Saukiidae
• Shumardia alata
• Shumardia ctenata
• Shumardiidae
• Tinaspis
• Tinaspis totoyaca

Taxonomy:

• Onychopyge riojana belongs to Onychopyge - Harrington (1938)
• Plicatolininae belongs to Olenidae - Robison and Pantoja- (1968)
• Parabolinella prolata belongs to Parabolinella - Robison and Pantoja- (1968)
• Parabolinella tumifrons belongs to Parabolinella - Robison and Pantoja- (1968)
• Parabolinella hecuba belongs to Parabolinella - Robison and Pantoja- (1968)
• Parabolinella variabilis belongs to Parabolinella - Robison and Pantoja- (1968)
• Pelturinae belongs to Olenidae - Robison and Pantoja- (1968)
• Leptoplastides mariana belongs to Leptoplastides - Robison and Pantoja- (1968)
• Parabolinopsis belongs to Leptoplastides - Robison and Pantoja- (1968)
• Leurostega belongs to Pelturinae - Robison and Pantoja- (1968)
• Leurostega aphelix belongs to Leurostega - Robison and Pantoja- (1968)
• Peltocare norvegicum belongs to Peltocare - Robison and Pantoja- (1968)
• Moxomia belongs to Parabolinella - Robison and Pantoja- (1968)
• Plicatolina belongs to Plicatolininae - Robison and Pantoja- (1968)
• Plicatolinella belongs to Plicatolininae - Robison and Pantoja- (1968)
• Plicatolinella ocula belongs to Plicatolinella - Robison and Pantoja- (1968)
• Richardsonella variagranula belongs to Richardsonella - Robison and Pantoja- (1968)
• Saukia globosa belongs to Saukia - Robison and Pantoja- (1968)
• Shumardia belongs to Shumardiidae - Robison and Pantoja- (1968)
• Shumardia alata belongs to Shumardia - Robison and Pantoja- (1968)
• Shumardia ctenata belongs to Shumardia - Robison and Pantoja- (1968)
• Bifodina belongs to Ptychopariida - Robison and Pantoja- (1968)
• Bifodina longifrons belongs to Bifodina - Robison and Pantoja- (1968)
• Onychopyge belongs to Ceratopygidae - Robison and Pantoja- (1968)
• Gymnagnostus congros belongs to Gymnagnostus - Robison and Pantoja- (1968)
• Gymnagnostus mexicanus belongs to Gymnagnostus - Robison and Pantoja- (1968)
• Asaphellus belongs to Asaphidae - Robison and Pantoja- (1968)
• Asaphellus homfrayi belongs to Asaphellus - Robison and Pantoja- (1968)
• Hemigyraspis affinus belongs to Asaphellus homfrayi - Robison and Pantoja- (1968)
• Asaphellus artus belongs to Asaphellus - Robison and Pantoja- (1968)
• Asaphellus aspinus belongs to Asaphellus - Robison and Pantoja- (1968)
• Asaphellus communis belongs to Asaphellus - Robison and Pantoja- (1968)
• Colpocoryphoides belongs to Pharostomina - Robison and Pantoja- (1968)
• Pharostomina mexicana belongs to Pharostomina - Robison and Pantoja- (1968)
• Parabolinella argentinensis belongs to Parabolinella - Robison and Pantoja- (1968)
• Prionopyge belongs to Onychopyge - Robison and Pantoja- (1968)
• Onychopyge sculptura belongs to Onychopyge - Robison and Pantoja- (1968)
• Tinaspis belongs to Leiostegiidae - Robison and Pantoja- (1968)
• Tinaspis totoyaca belongs to Tinaspis - Robison and Pantoja- (1968)
• Angelina hyeronimi belongs to Angelina - Robison and Pantoja- (1968)
• Angelina spinosa belongs to Angelina - Robison and Pantoja- (1968)
• Bienvillia grandis belongs to Bienvillia - Robison and Pantoja- (1968)
• Parabolina argentina belongs to Parabolina - Robison and Pantoja- (1968)
• Parabolinella limitis belongs to Parabolinella - Robison and Pantoja- (1968)
• Geragnostidae belongs to Agnostida - Robison and Pantoja- (1968)