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Excerpt from Description of Parkeria and Loftusia, Two Gigantic Types of Arenaceous Foraminifera The Arenaceous group, thus definitely constituted, was considered by Messrs. Parker and T. Rupert jones as consisting only of one Family, the lituolida; under which they ranked the three Genera Trochammina, Lituola, and Valuulina, each of them possessing such a wide range of morphological variation, as to present in their aggregate a most curious series of imitations or isomorphs of true shelly Foraminifera, Vitreous as well as Porcellanous. It is not improbable, I remarked (q 205) that future research may add largely to our knowledge of these Arenaceous forms; and this anticipation has been remarkably confirmed by the results of subsequent investigations. For whilst a singular variety of recent Arenaceous Foraminifera, some of them of large dimensions, have been brought up by the Dredging operations which have been lately carried down to great depths in the Sea, it has been discovered that certain problematical fossils of very regular globose form, sometimes attaining 2 inches in diameter, occurring in the Upper Greensand near Cambridge and in the Isle of Wight, and formerly supposed to be Sponges, are in reality gigantic Arenaceous Foraminifera; and the like character has been recognized in a series of fossils which were some time since brought from Persia by the late Mr. Loftus, the striking resemblance of which, both in form and general characters, to Alueolina, seemed to justify their assignment to the Foraminiferal type, notwithstanding that their enormous dimensions seemed almost to forbid such a deter mination. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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