Cucullaea Gigantea
''Cucullaea gigantea'' is an extinct species of false ark shell found in the United States, in the Aquia Formation in Maryland and Virginia along the Potomac River and its tributaries, and in Alabama. They flourished in marine environments during the Paleocene, ranging from 58.7 to 55.8 million years ago. ''Cucullaea gigantea'' average about 8–14 cm in length, about twice the size of its relative ''Cucullaea'' ''recendens'' which average 5–8 cm. ''Cucullaea'' were infaunal suspension feeders, meaning they burrowed into the seafloor and strained their food from the water. References Cucullaeidae Prehistoric bivalves of North America {{Paleo-bivalve-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Journal Of Paleontology
The ''Journal of Paleontology'' is a peer-reviewed scientific journal covering the field of paleontology. It is managed and published by Cambridge University Press on behalf of the Paleontological Society. Indexing The ''Journal of Paleontology'' is indexed in: *BIOSIS Previews *Science Citation Index *The Zoological Record *GeoRef __NOTOC__ The GeoRef database is a bibliographic database that indexes scientific literature in the geosciences, including geology. Coverage ranges from 1666 to the present for North American literature, and 1933 to the present for the rest of th ... References Paleontology journals Academic journals established in 1927 Academic journals published by learned and professional societies Cambridge University Press academic journals Bimonthly journals Paleontological Society {{paleo-journal-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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False Ark Shell
The false ark shells (''Cucullaea'') are a small genus of Marine (ocean), marine bivalve molluscs related to the ark clams. The genus is the only member of the Family (biology), family Cucullaeidae. Species The World Register of Marine Species lists the following species: *extinction, †''Cucullaea elegans'' (Fischer) *extinction, †''Cucullaea gigantea'' Conrad, 1862Cucullaea gigantea Conrad, 1862 in Paleobiology Database (2018) https://www.gbif.org/species/121408017 *''Cucullaea granulosa'' Jonas, 1846 *''Cucullaea labiata'' John Lightfoot FRS, Lightfoot, 1786) *''Cucullaea petita'' Tom Iredale, Iredale, 1939 *''Cucullaea vaga'' Tom Iredale, Iredale, 1930 References Cucullaeidae {{bivalve-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Aquia Formation
The Aquia Formation is a geologic sandstone formation that extends from the upper Chesapeake Bay to the James River near Hopewell, Virginia. It consists of clayey, silty, very shelly, glauconitic sand. Fossil records indicate that this stratigraphic unit was created during the Paleocene. The Aquia formation was named for Aquia Creek where it is exposed in cliff faces along the banks. Geology Lithology When uncovered, it appears dark green to gray-green, argillaceous, with well sorted fine- to medium-grained sand and locally indurated shell beds. It is between 0 and 100 feet thick in Maryland. Quartz and phosphatic pebbles and/or very coarse glauconitic quartz sand mark the base of the unit. A few hard streaks of shells or thin "rock" layers are often reported but appear to be more abundant in the sections south of the James River. Stratigraphy The Aquia formation is overlain by the Nanjemoy Formation and overlies the Brightseat Formation. The Aquia formation is broken d ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Paleobiology Database
The Paleobiology Database (PBDB) is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database originated in the NCEAS-funded Phanerozoic Marine Paleofaunal Database initiative, which operated from August 1998 through August 2000. From 2000 to 2015, PBDB received funding from the National Science Foundation. PBDB also received support form the Australian Research Council. From 2000 to 2010 it was housed at the National Center for Ecological Analysis and Synthesis, a cross-disciplinary research center within the University of California, Santa Barbara. It is currently housed at University of Wisconsin-Madison and overseen by an international committee of major data contributors. The Paleobiology Database works closely with the Neotoma Paleoecology Database, which has a similar intellectual history, but has focused on the Quaternary (with an emphasis on the late Pleistocene and Holoc ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Paleocene
The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by an asteroid impact (Chicxulub impact) and possibly volcanism (Deccan Traps), marked the beginning of the Paleocene and killed off 75% of species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cucullaea Gigantea (back)
''Cucullaea gigantea'' is an extinct species of false ark shell found in the United States, in the Aquia Formation in Maryland and Virginia along the Potomac River and its tributaries, and in Alabama. They flourished in marine environments during the Paleocene The Paleocene ( ), or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), ..., ranging from 58.7 to 55.8 million years ago. ''Cucullaea gigantea'' average about 8–14 cm in length, about twice the size of its relative ''Cucullaea'' ''recendens'' which average 5–8 cm. ''Cucullaea'' were infaunal suspension feeders, meaning they burrowed into the seafloor and strained their food from the water. References Cucullaeidae Prehistoric bivalves of North America {{Paleo-bivalve-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Cucullaeidae
The false ark shells (''Cucullaea'') are a small genus of marine bivalve molluscs related to the ark clams. The genus is the only member of the family Cucullaeidae. Species The World Register of Marine Species lists the following species: *†'' Cucullaea elegans'' (Fischer) *† A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species or languages). It is one of the mo ...'' Cucullaea gigantea'' Conrad, 1862Cucullaea gigantea Conrad, 1862 in Paleobiology Database (2018) https://www.gbif.org/species/121408017 *'' Cucullaea granulosa'' Jonas, 1846 *'' Cucullaea labiata'' Lightfoot, 1786) *'' Cucullaea petita'' Iredale, 1939 *'' Cucullaea vaga'' Iredale, 1930 References Cucullaeidae [Baidu]   |