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Trilobites from the Lejopyge laevigata Zone (Guzhangian; Upper Middle Cambrian) of the San Isidro Area, Mendoza, Argentina
(Asociación Paleontológica Argentina, 2017-08)
The San Isidro area is a classic fossil locality of the Lower Paleozoic of the southern Precordillera, Mendoza. The trilobites recognized to date from this area come from various stratigraphic levels of early middle Cambrian ...
Middle Cambrian protospongiid sponges and chancelloriids from the Precordillera of Mendoza Province, western Argentina.
(E Schweizerbartsche Verlags, 2013-06-01)
A Middle Cambrian faunule from different sections of the San Isidro region, Precordillera of Mendoza Province, western Argentina, include previously unrecorded and new material. Specimens in the collections are simple ...
Lower and middle cambrian rhynchonelliform brachiopods from the precordillera terrane of Argentina
(Paleontological Society, 2012-03)
The first Cambrian rhynchonelliformean brachiopods are described from the Precordillera mountain belt of west-central Argentina, including the new species Wimanella mollensis and Nisusia ancauchensis. Other forms are ...
Scleritomes of chancelloria eros and sclerits from the middle Cambrian (Series 3, stage 5) of central Sonora, MexicoEscleritomos de Chancelloria eros y escleritos del Cámbrico medio (Serie 3, Piso 5) de Sonora central, México
(Universidad Nacional Autónoma de México. Centro de Geociencias, 2019-03)
Fragments of scleritomes of Chancelloria eros from the middle Cambrian of Sonora, Mexico are reported for the first time. Chancelloriid scleritomes partially articulated and isolated sclerites belonging to Allonnia tintinopsis ...
Late middle Cambrian trilobites from El Totoral, Mendoza, Argentina
(Association of Australasian Palaeontologists, 2012-07)
Late middle Cambrian trilobites from open-shelf lithofacies of El Totoral, Precordillera of Mendoza, western Argentina, are described. The material belongs to the Ángel Borrello collections in the Museum of Natural Sciences ...
Totoralia, a new conical-shaped mollusk from the middle Cambrian of western Argentina
(Universidad de Barcelona, 2011-06)
The new genus Totoralia from the late middle Cambrian of El Totoral (Mendoza Province, western Argentina) is described herein. It is a delicate, high, bilaterally symmetrical cone with a sub-central apex and five to seven ...
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, ...
Systematic, morphometric and palaeobiogeographic study of Blainia gregaria Walcott, 1916 (Trilobite, Ptychopariida): Middle Cambrian of the Precordillera of western Argentina
(Wiley, 2012-01-13)
The ptychoparioid trilobite Blainia gregaria Walcott, 1916 is described for the first time from the late middle Cambrian (Series 3) of the Argentine Precordillera. It occurs commonly in the upper part of La Laja Formation, ...
The worm Palaeoscolex from the Cambrian of NW Argentina: extending the biogeography of Cambrian priapulids to South America.
(Taylor & Francis Ltd, 2011-06)
Over one hundred years of palaeontological research in northwestern Argentina has provided extensive knowledge of Andean lower Palaeozoic fossil assemblages, with trilobites, graptolites, brachiopods and echinoderms being ...