"Balanidae" Quotes from Famous Books
 ... sandstone abounding with Scutellae; and the lowest bed (F) is an indurated, greenish, sandy clay, including large concretions of calcareous sandstone, many shells of the great oyster, and in parts almost made up of fragments of Balanidae. Out of these three beds, I procured the following twelve species, of which the two first were exceedingly numerous in individuals, as were the Terebratulae ...
— South American Geology - also: - Title: Geological Observations On South America • Charles Darwin |
