Systematics and Paleoecology of Miocene Portunid and Cancrid Decapod Fossils from the St. Marys Formation, Maryland PDF Download
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Author: Heedar Bahman Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A collection of decapod fossils from the Miocene St. Marys Formation, Little Cove Point Member, was examined. Three different genera were recognized, Necronectes A. Milne Edwards, 1881, Callinectes Stimpson, 1860, and Cancer Linnaeus, 1758, comprising 6 species. Cancer included 4 species, Cancer irroratus Say, 1817; Cancer borealis Stimpson, 1859; and two new species. Necronectes is represented by Necronectes drydeni Rathbun, 1935. Callinectes was also represented by a single species within the collection, Callinectes sapidus Rathbun, 1896. Most of the fossils were small relative to normal adult size. The paleoecology was similar to the present day ecology based on study of recent faunas, lithology, and paleoecology. The paleo-environment was shallow marine within the temperate climate zone.
Author: Heedar Bahman Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A collection of decapod fossils from the Miocene St. Marys Formation, Little Cove Point Member, was examined. Three different genera were recognized, Necronectes A. Milne Edwards, 1881, Callinectes Stimpson, 1860, and Cancer Linnaeus, 1758, comprising 6 species. Cancer included 4 species, Cancer irroratus Say, 1817; Cancer borealis Stimpson, 1859; and two new species. Necronectes is represented by Necronectes drydeni Rathbun, 1935. Callinectes was also represented by a single species within the collection, Callinectes sapidus Rathbun, 1896. Most of the fossils were small relative to normal adult size. The paleoecology was similar to the present day ecology based on study of recent faunas, lithology, and paleoecology. The paleo-environment was shallow marine within the temperate climate zone.
Author: Edward J. Petuch Publisher: CRC Press ISBN: 1439811601 Category : Nature Languages : en Pages : 180
Book Description
The Chesapeake Miocene will always be considered a paleontological treasure. Given the richness and accessibility of the Maryland and Virginia Miocene shell beds, it seems remarkable that very few people have ever described new species from these strata over the past 185 years. Until now. Integrating elements from paleontology, geology, environmental science, and ecology, Molluscan Paleontology of the Chesapeake Miocene assembles previous research and the authors’ experience into a synoptic field guide. The most complete compendium of Miocene species created since 1904, this long-awaited resource lists nearly 500 species. It contains illustrations of 260 species, including more than 60 not found in any previous book and 26 newly discovered. It describes Chesapeake molluscan faunas in terms of local geology, paleoceanography, and marine paleobiology. Organized by stratigraphic geology, the book covers fossils of the Eastover, St Mary’s, Choptank, and Calvert Formations. It illustrates 24 collecting sites and fossil exposures, showing details of in situ specimens, along with maps of 4 Miocene paleoseas and detailed stratigraphic columns for Maryland and northern Virginia. The text is accompanied by downloadable resources with color illustrations of the forty known species of ecphora shells. Armed with these, you should be able to identify the species found in the amazingly rich shell beds of the Chesapeake Bay area.
Author: Heedar Bahman
Author: Heedar Bahman
Author: Leonidas Chalmers Glenn
Author: Edward J. Petuch
Author: Maryland Geological Survey
Author: Thomas G. Gibson
Author: Maryland Geological Survey
Author: Lauck W. Ward
Author: Maryland Geological Survey
Author: Maryland. Department of Geology, Mines, and Water Resources
Author: Robert E. Gernant