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Late triassic hexactinellid sponges from the Pongo de Lorocache limestones, Peru: New evidence for siliceous sponge dominance on shallow carbonate platforms
(Asociación Paleontológica ArgentinaAR, 2018-04)
We hereby report the finding of Upper Triassic hexactinellid sponges in Pongo de Lorocache limestones, in the south edge of the Santiago basin, Peru (Fig. 1). The sponges were found in the uppermost levels of the Chambará ...
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 ...
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 ...
A Mississippian hexactinellid sponge from the Western Gondwana: Taxonomic and paleobiogeographic implications
(Polish Academy of Sciences. Institute of Paleobiology, 2018-02)
A Mississippian hexactinellid sponge from the western Argentina improves the extremely poor late Paleozoic sponge records from Gondwana. The sponge is included in the subfamily Thysanodictyinae of family Dictyospongiidae. ...
The new genus Talacastospongia: insights on the first record of a Devonian sponge from South America
(Paleontological Society, 2015-12)
The Lower Devonian (Lochkovian) hexactinellid sponge Talacastospongia minima n. gen. n. sp., is reported from the lower beds of the Talacasto Formation in the Argentine Precordillera. It represents the first Devonian ...
Cambrian, Ordovician and Silurian non-stromatoporoid Porifera
(Lyell collection, 2013-07)
The Cambrian, Ordovician and Silurian distributions of non-stromatoporoid sponges are reviewed. The earliest Cambrian faunas contain mostly hexactinellids, with protomonaxonids dominating middle Cambrian assemblages. There ...
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 ...
New reticulosan sponges from the middle Cambrian of Sonora, Mexico
(Polish Academy of Sciences. Institute of Paleobiology, 2017-11)
A small assemblage of extremely well-preserved fragments of new sponges has been discovered in calcipelites of the middle Cambrian El Mogallón Formation in the Cerro El Mogallón section, near Arivechi in eastern Sonora, ...
Siliceous sponges from the Upper Triassic-Lower Jurassic, Pucará Group, Peru: new evidence of a faunal recovery during the extinction event
(Asociación Paleontológica ArgentinaAR, 2016-10)
Across the Triassic-Jurassic transition, an important change in atmospheric pCO2 was recorded, concomitant with the eruption and emplacement of the Central Atlantic Magmatic Province and the splitting of Pangea. Upper ...