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Conodont biostratigraphy of the Little Cedar and Lower Coralville formations of the Cedar Valley Group (Middle Devonian) of Iowa and significance of a new species of Polygnathus
Development of ground water from the Carrizo sand and Wilcox group in Dimmit, Zavala, Maverick, Frio, Atacosa, Median, Bexar, Live Oak, McMullen, La Salle, and Webb Counties, Texas
Alberch, P., SJ Gould, GF Oster and DB Wake. 1979. Size and shape in ontogeny and phylogeny. Paleobiology 5: 296-317. Algor, J. R. 1971. Structure of the ambulacral system in some modern and early Paleozoic starfish. Geol. Soc. Amer. Abstr. Prog. 3 (7): 489-490.