A modern assessment of Ordovician chitinozoans from the Shelve and Caradoc areas, Shropshire, and their significance for correlation [PDF]
New chitinozoan data are presented from the classical section along the Onny River in the type Caradoc area, and from the deeper-water sections in the Shelve area, including the former British candidate GSSP for the base of the Upper Ordovician Series ...
Achab +23 more
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The casa colorada formation at the Quebrada de Moya (cambrian-ordovician): contributions to the chronostratigraphy of a classical locality in the cordillera oriental of Jujuy (argentina) [PDF]
La Formación Casa Colorada constituye una potente secuencia silicoclástica aflorante en el sector medio de la quebrada de Humahuaca en la provincia de Jujuy.
Aceñolaza, Guillermo Federico +2 more
core
A spinose appendage fragment of a problematic arthropod from the Early Ordovician of Morocco [PDF]
A highly spinose fragment of a possibly raptorial appendage from the Arenig (Early Ordovician) of the Upper Fezouata Formation north of Zagora, southeastern Morocco is described as the arthropod Pseudoangustidontus duplospineus gen. et sp. nov.
Tetlie, Odd Erik, Van Roy, Peter
core +1 more source
Global Series and Stages for the Ordovician System : a Progress Report [PDF]
There is no global standard set of chronostratigraphic/geochronologic subdivisions for the Ordovician System/Period. British series/epochs are often used as de facto nomenclature on stratigraphic correlation charts and geologic time scales. However, they
Finney, S.
core +3 more sources
An Early Ordovician (Floian) Conodont Fauna from the Eastern Cordillera of Peru (Central Andean Basin) [PDF]
Late Floian conodonts are recorded from a thin limestone lens intercalated in the lower part of the San José Formation at the Carcel Puncco section (Inambari River), Eastern Cordillera of Peru.
Albanesi, G. L., +4 more
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PALYNOLOGICAL STUDY OF PALEOZOIC SEDIMENTS OF THE CHAL-I-SHEH AREA, SOUTHWESTERN IRAN [PDF]
The Paleozoic sediments of the Chal-i-Sheh area in southwestern Iran comprising of Mila Formation, Ilebek Formation and Faraghan Formation, were studied palynologically. The samples containing well-preserved palynomorphs include acritarchs, chitinozoans,
doaj
Storm deposits of the Coquena Formation (Upper Tremadocian) at the Chalala creek, Cordillera Oriental [PDF]
En la quebrada de Chalala aflora una sucesión heterolítica dominantemente arenosa caracterizada por abundantes niveles bioclásticos, que ha sido asignada a la Formación Coquena (Tremadociano superior).
Benítez, María del Huerto
core +1 more source
The subject of this paper is new geological and stratigraphical data regarding the Paleozoic in the Sarrabus area (Southeastern Sardinia). More particularly Tremadocian (Lower Ordovician) acritarchs have been found in samples taken for microfossils ...
SEBASTIANO BARCA +2 more
doaj
PYRITE VARIETIES IN ESTONIAN TREMADOCIAN ARGILLITE (DICTYONEMA SHALE) [PDF]
Toivo Kallaste, Eduard Pukkonen
openaire +1 more source
Acritarches du Cambro-Ordovicien du massif du Brabant, Belgique [PDF]
The outcrops of the « Quartzophyllades de Chevlipont » and the« Quartzophyllades de Villers-la-Ville » in both the Dyle and Thylevalleys, in the Province of Brabant, contain acritarch assemblages ofsixty-eight species and two subspecies.
Martin, F.
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