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Articles, 1 registres trobats
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5 p, 1.0 MB Early Cambrian sponge spicules from the Cerro Clemente and Cerro Rajón, Sonora, México / McMenamin, Mark A. S. (Mount Holyoke College. Department of Geology and Geography)
Acid maceration and thin section analysis of archaeocyathan limestones of the Cerro Clemente and Cerro Rajón, Sonora, México, have yielded some of the most ancient sponge fossils reported from the North American Cordillera. [...]
2008 - 10.1344/105.000000263
Geologica acta, Vol. 6, Núm. 4 (Desembre 2008) , p. 363-367  

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