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Discovery of Silurian sponge spicules from the Argentine Precordillera
(Wiley, 2011-12-06)
An association of silicified spicules of hexactinellid sponges was collected from Silurian sandstones at the top of the La Chilca Formation, cropping out at Cerro del Fuerte, 20 km east of Jáchal, in the San Juan Precordillera ...
Upper Ordovician sponge spicules from Gondwana: New data from Peru and Libya
(Ghent UniversityBE, 2016-07)
The record of Middle to Upper Ordovician sponges outside Laurentia and north-Gondwana
(=Australia) is too sparse that any new record significantly contribute to the global diversity and biogeographic knowledge of the group ...
Ordovician sponge spicules from Spitsbergen, Nevada and Newfoundland: new evidence for hexactinellid and demosponge early diversification
(Taylor & Francis, 2014-02)
Unusually well-preserved spicule assemblages from three Lower to Middle Ordovician localities are examined: Spitsbergen (Floian-Dapingian), Nevada (Vinini Formation, Dapingian) and Newfoundland (Cow Head Group, Tremadocian-lower ...
Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil
(2013-01-01)
Freshwater sponge spicules were analyzed as a paleoenvironmental proxy indicator in five cores of ponds and alluvial fan sediments in the Upper Paraná River's left bank, near Querência do Norte town, northwestern of State ...
Late Pleistocene and Holocene paleoenvironments in ponds and alluvial sediments of Upper Paraná River, Brazil
(2013-01-01)
Freshwater sponge spicules were analyzed as a paleoenvironmental proxy indicator in five cores of ponds and alluvial fan sediments in the Upper Paraná River's left bank, near Querência do Norte town, northwestern of State ...
Freshwater sponge spicules: a new agent of ocular pathology
(Fundação Oswaldo Cruz. Instituto Oswaldo Cruz, 2012)
Sponge spicules indicate Holocene environmental changes on the Nabileque River floodplain, southern Pantanal, Brazil
(2013-01-01)
Sponge spicules are siliceous microfossils that are especially useful for analysis of sandy fluvio-lacustrine sediments. Sponge spicules in a long sediment core (~550 cm below surface), consisting of fine sand, sandy silt, ...
Sponge spicules indicate Holocene environmental changes on the Nabileque River floodplain, southern Pantanal, Brazil
(2013-01-01)
Sponge spicules are siliceous microfossils that are especially useful for analysis of sandy fluvio-lacustrine sediments. Sponge spicules in a long sediment core (~550 cm below surface), consisting of fine sand, sandy silt, ...