Middle Ordovician
Investigating the Death of the Early Paleozoic Moyero River Geomagnetic Superchron: Middle Ordovician Paleomagnetism from Estonia
... the Middle Ordovician, which is coincident with deformation events (Hints, ...the Ordovician, whereas the rocks in the southern part of the country are from the Devonian (Meidla, ...the ...
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Palynology of the Middle Ordovician Hawaz Formation in the Murzuq Basin, south-west Libya
... Mid Ordovician and most likely mid Darriwilian (Llanvirn) in ...Mid Ordovician-earliest Silurian and does not permit further age ...for Middle Ordovician terrestrial vegetation at this very ...
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Lithofacies-influenced ostracod associations in the middle Ordovician Bromide Formation, Oklahoma, USA
... Correspondingly the Leperditalla Association, which in the Bromide Formation is characteristic of lithofacies indicative of marginal marine environments, shows no rela[r] ...
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Middle Ordovician Aparchitidae and Schmidtellidae: the significance of ‘featureless’ ostracods
... or equilateral. Leiocopes are characterized by valve asymmetry, manifested by inequally sized valves and by ventral or dorsal modifications of one or both of the valve[r] ...
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Effect of the Ordovician paleogeography on the (in)stability of the climate
... the Ordovician. Since then, numerous studies widely documented the Ordovician glacial sedimentary record in North Africa ...Late Ordovician Hirnan- tian (445–443 Ma) (Brenchley et ...Late ...
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The earliest leperditicope arthropod: a new genus from the Ordovician of Spitsbergen
... Leperditicopida are large bivalved arthropods typically 5–50 mm in length. Conventionally treated as ostracods (e.g. Whatley et al., 1993), their biological a ffi nities are unclear, compounded by a lack of evidence from ...
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Aspects of Ordovician conodonts and the stratigraphy of Thailand, Malaysia, and Tasmania
... Conodonts from the Karmberg Limestone Lower to Middle Ordovician within the Florentine Valley, central southern Tasmania.. The Florentine Valley Formation.[r] ...
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Evolution of the Late Ordovician Plaesiomyid Brachiopod Lineage in Laurentia
... Late Ordovician was a episode of elevated volcanic activity (see Huff et ...the Middle Ordovician has been linked to the one of the largest ash fall deposits in area known from the Phanerozoic over ...
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Study on the Main Controlling Factors of the Early Ordovician Stromatolites Development in Liujiachang Area of Songzi City
... of Ordovician organisms, especially after the middle Ordovician, the num- ber of phytophagous gastropods, sea urchins, ostracods, ...early Ordovician micro-organisms were gradually replaced by ...
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The earliest ostracods from the Ordovician of the Prague Basin, Czech Republic
... Text-fig. 8. Palaeogeographical distribution of the ostracod genera occurring in the Klabava and Šárka formations in strata of Early to Middle Ordovician age. (Palaeogeographic map modified after Cocks and ...
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PALYNOSTRATIGRAPHY AND PALAEOBIOGEOGRAPHY OF LOWER PALAEOZOIC STRATA IN THE GHELLI AREA, NORTHEASTERN ALBORZ RANGE OF IRAN (KOPET-DAGH REGION)
... Late Ordovician acritarch taxa to supplement those recorded in Zone IV, ...Late Ordovician (Ashgill age), by comparison with their previously recorded occurrence from the United States [37-39], Canada [27], ...
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Ordovician Snatigraphy of the Florentine Synclinorium, south west Tasmania
... The a unit of siliceou::;; fanglomeT;:1tc up Upper Ct-lmbrian sequence on the Denison sandstone unit on the southeastern side is also given The overlying sequence of marine sandstone :ul[r] ...
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Geology of the Ordovician rocks between Leadhills and Abington, Lanarkshire
... 2.1 INTRODUCTION 2.1.1 General stratigraphy 2.2 MILL BLKN' BLOCK 2.2.1 Mill Burn Member 2.2.2 Haggis Rock 2.2.3 Relationship between major lithostratigraphical units 2.2.4 Local correlat[r] ...
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Evolution, Paleoecology, and Paleobiogeography of the Late Ordovician Brachiopod Fauna of Laurentia
... Late Ordovician, marking the beginning of the Tippecanoe cratonic sequence (Sloss 1963), an interval of submergence that would last through to the Devonian, with only minor interruptions of sea- level ...the ...
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Aspects of Ordovician conodonts and the stratigraphy of Thailand, Malaysia, and Tasmania
... Conodonts from the Lower Setul Limestone in the Langkawi Islands, the Thung Song Group on Ko Tarutao and mainland Thailand, and Tasmania show close affiliation to the Ordovician conodont[r] ...
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The Ordovician ostracodes established by Aurel Krause, Part II
... of Middle/early Late Ordovi- cian was subdivided in Sweden into four sections such as Lower Red, Lower Grey, Upper Red and Upper Grey Orthoceras Limestone (Hessland 1949, ...
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Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician
... the Middle and Late Ordovician of Baltoscandia are described and their systematic frame is ...the Middle, and Late Ordovician annulate ...
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The Ordovician ostracodes established by Aurel Krause, Part I
... Krause’s material came from glacial erratic boulders of both Berlin region and Mark Brandenburg. Most of the samples were collected in the former sand and gravel pits near Mggelheim at the Mggel Isle (Berlin) (Krause ...
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Ordovician corals from Ida Bay, Queenstown and Zeehan, Tasmania
... Remarks: This species differs from that of the coral zone of the Oceana No.2 Core of Zeehan in its coarser corallites and slender branches, though the growth form is similar.. Several sp[r] ...
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Diversity and Distribution of the Genus Platypeltoides (Nileidae) in Morocco
... Lower Ordovician (Tremadocian) of the Fezouata Shale of Morocco: ...the Ordovician of Morocco, supported by the Museo Geológico del Seminario de Barcelona (Spain) and the Department of Paleontology of the ...
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