This era is considered as the age of medieval life. We’re sorry, but GBIF doesn’t work properly without JavaScript enabled. During the Pleistocene, A. nucleus, a tropical bay scallop, is inferred to have split from A. gibbus and to have become morphologically convergent on the true bay scallop, A. irradians. Because barrier islands seem to have played a key role in speciation within the stock, it would appear that evolutionary differences may have been caused by the active coastal tectonism of the Pacific side destroying such island barriers before genetic differences between inshore and offshore scallop populations could arise. 3, Supplement to Vol. By the end of the Miocene, on the eastern side of the Americas, this variable species had split, giving rise to a primitive bay scallop, A. anteamplicostatus (Mansfield), that, like the living bay scallop (its phyletic descendant), was probably ecologically restricted to the semienclosed waters of bays and sounds, and to another species, A. vicenarius (Conrad), probably restricted to open marine waters like the living calico scallop. With regard to nomenclature, the name Argopecten is shown to be a senior synonym of Plagioctenium; the generic name Aequipecten is rejected for American species related to Argopecten gibbus; and it is concluded that the generic name Chlamys, sensu lato, is better applied as the subfamily name Chlamydinae. Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Using an electronic digital computer, data were subjected to univariate and bivariate analyses, and samples were compared using machine-plotted, bivariate scatter diagrams, reduced major axes, and other graphical techniques. I-XIV, 1-303, Tab. Pecten (Chlamys) gibbus L. var. Sign Up Sign In Hi, Member since Balance Plan: On … The species name Argopecten vicenarius (Conrad), unused since 1898, is reinstated as the only available name for an important taxon occurring in the Caloosahatchee Marl of Florida and the Waccamaw Formation of the Carolinas. 2009. All Rights Reserved. XIII-XXVIII. meridionalis, Pecten Tate, 1887 = Pecten fumatus merriami, Pecten Arnold, 1906 = Patinopecten caurinus midwayensis, Chlamys Habe & Okutani, 1968 = Laevichlamys cuneata http://creativecommons.org/licenses/by-nc/4.0/, http://creativecommons.org/publicdomain/zero/1.0/, Argopecten imitatoides Macsotay & Campos, 2001. Pecten gibbus fossils are similar to sea shells we might find today. small to medium sized (30-70 mm),solid and very colourful pectinid. 14-Day Free Trial. Pecten gibbus are index fossils found in the Cenozoic Era in the Quaternary period, 1.8 million years ago. nucleus Born; Pecten nucleus Born; Argopecten gibbus gibbus (L.); Argopecten gibbus (Linnaeus, 1758) RMNH.MOL.323566_1 Toon alle 9 multimedia Fossils are the preserved remains or traces of animals, plants and other organisms from the past. ), Gulf of Mexico–Origins, Waters, and Biota. Select the purchase ; The bivalve shells don't really do any harm to the environment. The fossil members of the stock include the ancestors of these living species together with Argopecten eboreus (Conrad), an extinct species or species-group not ancestral to any of the later taxa. Camp (eds. Argopecten gibbus, the Atlantic calico scallop, is a species of medium-sized edible marine bivalve mollusk in the family Pectinidae, the scallops. It includes longer systematic monographs and symposia, which supplement regular issues of the Journal. 711–744 in Felder, D.L. Synonymns and other Related Names: No related names recorded. Fossilworks hosts query, analysis, and download functions used to access large paleontological data sets. Scallop (/ ˈ s k ɒ l ə p, ˈ s k æ l ə p /) is a common name that is primarily applied to any one of numerous species of saltwater clams or marine bivalve mollusks in the taxonomic family Pectinidae, the scallops.However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters. Cambridge Journals publishes over 250 peer-reviewed academic journals across a wide range of subject areas, in print and online. With a personal account, you can read up to 100 articles each month for free. pecten gibbus era and period As time passed and the Paleogene Geological Period came to an end, mammals such as cats, dogs, and pigs started evolving along with the Neogene Geological Period. This species . off Cape Canaveral. Index Fossils Index Fossils Lingula anatina is NOT AN INDEX FOSSIL !!
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