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The oldest record of Eothinoceratidae (Ellesmerocerida, Nautiloidea): Middle Tremadocian of the Cordillera Oriental, NW Argentina
(John Wiley & Sons Ltd, 2011-01)
Middle Tremadocian cephalopods from the Sierra de Mojotoro, Cordillera Oriental, NW Argentina, are assigned to Saloceras cf. sericeum (Salter) based on the siphuncle morphology and general shape of the conch. Saloceras ...
New insights into the early diversification of the ostracoda: Tremadocian ostracods from the cordillera oriental, Argentina
(Polish Academy of Sciences. Institute of Paleobiology, 2012-03)
New species of ostracods from the Tremadocian in the northwest region of Argentina are described. These are among the earliest well-documented records of ostracods, which shed new light onto the early diversification of ...
Diversification of Asaphellus Callaway, 1877 (Asaphidae: Trilobita) during the Tremadocian in South West Gondwana (Cordillera Oriental, Argentina)
(Publications Scientifiques Du Museum, 2015-02)
Asaphellus Callaway, 1877 is the earliest widespread genus of the family Asaphidae Burmeister, 1843, and although its systematics bears several problematic issues, an input to overcome these difficulties has been attempted. ...
Conodonts and graptolites of the Santa Rosita Formation (Tremadocian) at the Nazareno area, Santa Victoria Range, Cordillera Oriental de Salta, Argentina
(Asociación Paleontológica Argentina, 2013-07)
New records of Tremadocian conodonts (Early Ordovician) from the Zenta Range, Jujuy Province, Argentina
(Asociación Paleontológica Argentina, 2013-07)
THE study area is located nearby the Santa Ana village, province of Jujuy, in the Zenta Range of the Cordillera Oriental, northwestern Argentina. Localities can be reached by the national Route 9 to the town of Humahuaca, ...
Morphometrics of Leptoplastides marianus (Hoek) (Trilobita, Olenidae) from the Tremadocian of north-western Argentina: taxonomic implications
(Cambridge University Press, 2018-02)
Morphometrics can be an important tool in systematic studies, providing taxonomists with strong elements of quantification and formal hypothesis testing. Here, these tools are tested for the trilobite Leptoplastides marianus ...
Late tremadocian graptolites from the Mojotoro Range, Argentine Eastern Cordillera
(Instituto Superior de Correlación Geológica, 2003)
The aim of this contribution is to make known a graptolite assemblage from the Upper Tremadocian coming from the Mojotoro Range on the southeast part of the Argentine Eastern Cordillera (Figure 1a,b). The fossiliferous ...
Trilobites and sedimentary facies of the upper Coquena Formation (late Tremadocian; Notopeltis orthometopa Zone), Cordillera Oriental, northwestern Argentina
(Association of Australasian Palaeontologists, 2016-05)
The area west of Purmamarca is a classic locality of the upper Tremadocian (Lower Ordovician) of the central Cordillera Oriental, northwestern Argentina. There, the upper member of the Coquena Formation documents the ...
Late Cambrian – Tremadocian faunas and events from Angosto del Moreno Section, Eastern Cordillera, Argentina
(Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto Superior de Correlación Geológica, 2003)
The Santa Victoria Group (SVG, late Upper Cambrian – Caradocian) comprises pre–Ashgillian Ordovician deposits of the Argentinean Eastern Cordillera. The most significant section of the SVG in the western flank of the Eastern ...