. Animals before man in North America; their lives and times. Paleontology. Animals Before Man. A polyzoan, Flustra tnmcata. tlieir own, are Polyzoa, or moss animals, and Brachiopoda, or lamp-shells. The former are of small size, and are associated in colonies, which often bear a strong superficial likeness to a piece of seaweed, although on closer examination this resolves itself into an assemblage of little animals each occupying a sort of pocket or cell. The brachiopods bear shells, and were long and not unnatu- rally considered as belonging with bivalve mol- lusks, which they closely resem
. Animals before man in North America; their lives and times. Paleontology. Animals Before Man. A polyzoan, Flustra tnmcata. tlieir own, are Polyzoa, or moss animals, and Brachiopoda, or lamp-shells. The former are of small size, and are associated in colonies, which often bear a strong superficial likeness to a piece of seaweed, although on closer examination this resolves itself into an assemblage of little animals each occupying a sort of pocket or cell. The brachiopods bear shells, and were long and not unnatu- rally considered as belonging with bivalve mol- lusks, which they closely resemble in outside appearance. It may be said, however, that while the two halves of such a shell as that of a clam represent the two sides of the occu- pant, in a brachiopod the valves cover the upper and lower portions of the animal. The inside of these shells often has curious loops or spirals for the attachment of the muscles that move them, and in some species there is a sort of stalk running through the point of the shell, by which the animal is attached to the sea-bot- 48. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lucas, Frederic A. (Frederic Augustus), 1852-1929. New York, D. Appleton and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpaleont, bookyear1902
