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Bladen Formation
The Bladen Formation is a geologic Formation (geology), formation from the Late Cretaceous (middle Campanian) of North Carolina and South Carolina, USA. It is known for a plethora of terrestrial and aquatic vertebrate fossils, including dinosaurs and mosasaurs.Various Contributors to the NCSM, et al. 2020. "NCSM Collection: Paleontology Database." It appears to be roughly concurrent with the Tuscaloosa Formation of Alabama. Unlike many other Cretaceous geologic formations from eastern North America, which were deposited in entirely marine environments, the Bladen Formation appears to have been deposited in a former river delta in an Estuary, estuarine habitat, allowing for a mixture of freshwater, terrestrial, and marine fauna. An important locality is the former Bladen County, North Carolina, Bladen County landfill annex in Elizabethtown, North Carolina, which contains the richest known fauna from the formation. Another notable locality is near Quinby, South Carolina, Quinby in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campanian
The Campanian is the fifth of six ages of the Late Cretaceous epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian spans the time from 83.6 (± 0.2) to 72.1 (± 0.2) million years ago. It is preceded by the Santonian and it is followed by the Maastrichtian. The Campanian was an age when a worldwide sea level rise covered many coastal areas. The morphology of some of these areas has been preserved: it is an unconformity beneath a cover of marine sedimentary rocks. Etymology The Campanian was introduced in scientific literature by Henri Coquand in 1857. It is named after the French village of Champagne in the department of Charente-Maritime. The original type locality was a series of outcrops near the village of Aubeterre-sur-Dronne in the same region. Definition The base of the Campanian Stage is defined as a place in the stratigraphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alabama
Alabama ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South, Deep Southern regions of the United States. It borders Tennessee to the north, Georgia (U.S. state), Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama is the List of U.S. states and territories by area, 30th largest by area, and the List of U.S. states and territories by population, 24th-most populous of the List of states and territories of the United States, 50 U.S. states. Alabama is nicknamed the ''Northern flicker, Yellowhammer State'', after the List of U.S. state birds, state bird. Alabama is also known as the "Heart of Dixie" and the "Cotton State". The state has diverse geography, with the north dominated by the mountainous Tennessee Valley and the south by Mobile Bay, a historically significant port. Alabama's capital is Montgomery, Alabama, Montgomery, and its largest city by population and area is Huntsville, Ala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybodontid
Hybodontiformes, commonly called hybodonts, are an extinct group of shark-like cartilaginous fish (chondrichthyans) which existed from the late Devonian to the Late Cretaceous. Hybodonts share a close common ancestry with modern sharks and rays (Neoselachii) as part of the clade Euselachii. They are distinguished from other chondrichthyans by their distinctive fin spines and cephalic spines present on the heads of males. An ecologically diverse group, they were abundant in marine and freshwater environments during the late Paleozoic and early Mesozoic, but were rare in open marine environments by the end of the Jurassic, having been largely replaced by modern sharks, though they were still common in freshwater and marginal marine habitats. They survived until the end of the Cretaceous, before going extinct. Etymology The term hybodont comes from the Greek word ''ὕβος'' or ''ὑβός'' meaning hump or hump-backed and ''ὀδούς, ὀδοντ'' meaning tooth. This name was gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meristodonoides
''Meristodonoides'' is an extinct genus of hybodont known from the mid-late Cretaceous, with potential records dating back to the Jurassic. It is one of a number of hybodont genera composed of species formerly assigned to ''Hybodus''. The genus is primarily known from remains from the Cretaceous of North America and Europe, spanning from the Aptian/Albian to Maastrichtian, making it one of the last surviving hybodont genera, though records of the genus likely extend as far back as the Late Jurassic, based on an undescribed skeleton from the Tithonian of England, and fragmentary teeth from the Kimmeridgian of Poland, England and Switzerland. Other remains of the genus are known from the Coniacian of England, the Aptian-Albian of France, the Campanian of British Columbia, Canada and the Campanian of European Russia. Taxonomy The type species is ''M. rajkovichi'', which was originally a species in the genus ''Hybodus''. The species, along with other ''Hybodus'' species such as ''H. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchidion Sp
''Lonchidion'' is a genus of extinct hybodont in the family Lonchidiidae. The genus first appears in the fossil record during the Middle Triassic (Ladinian) and was among the last surviving hybodont genera, with its youngest known fossils dating to the very end of the Cretaceous (Maastrichtian). ''Lonchidion'' was first described by Richard Estes in 1964, and the type species is ''L. selachas''. Fossils of ''Lonchidion'' have been found worldwide. The genus has been proposed to be euryhaline, and is often found in freshwater and brackish deposits. Hybodont egg cases ('' Palaeoxyris'') associated with juvenile teeth of ''L. ferganensis'' in the Triassic lake deposits of the Madygen Formation of Kyrgyzstan suggests that this species spawned in freshwater environments, with ''Palaeoxyris'' egg cases found in freshwater deposits of the Late Triassic Chinle Formation in North America suggested to have been produced by ''Lonchidion humblei''. While the genus is primarily known from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchidion
''Lonchidion'' is a genus of extinct hybodont in the family Lonchidiidae. The genus first appears in the fossil record during the Middle Triassic (Ladinian) and was among the last surviving hybodont genera, with its youngest known fossils dating to the very end of the Cretaceous (Maastrichtian). ''Lonchidion'' was first described by Richard Estes in 1964, and the type species is ''L. selachas''. Fossils of ''Lonchidion'' have been found worldwide. The genus has been proposed to be euryhaline, and is often found in freshwater and brackish deposits. Hybodont egg cases ('' Palaeoxyris'') associated with juvenile teeth of ''L. ferganensis'' in the Triassic lake deposits of the Madygen Formation of Kyrgyzstan suggests that this species spawned in freshwater environments, with ''Palaeoxyris'' egg cases found in freshwater deposits of the Late Triassic Chinle Formation in North America suggested to have been produced by ''Lonchidion humblei''. While the genus is primarily known from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybodontiformes
Hybodontiformes, commonly called hybodonts, are an extinct group of shark-like cartilaginous fish (chondrichthyans) which existed from the late Devonian to the Late Cretaceous. Hybodonts share a close common ancestry with modern sharks and rays (Neoselachii) as part of the clade Euselachii. They are distinguished from other chondrichthyans by their distinctive fin spines and cephalic spines present on the heads of males. An ecologically diverse group, they were abundant in marine and freshwater environments during the late Paleozoic and early Mesozoic, but were rare in open marine environments by the end of the Jurassic, having been largely replaced by modern sharks, though they were still common in freshwater and marginal marine habitats. They survived until the end of the Cretaceous, before going extinct. Etymology The term hybodont comes from the Greek word ''ὕβος'' or ''ὑβός'' meaning hump or hump-backed and ''ὀδούς, ὀδοντ'' meaning tooth. This name was g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aguja Formation
The Aguja Formation is a geological formation in North America, exposed in Texas, United States and Chihuahua and Coahuila in Mexico, whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, "Dinosaur distribution (Late Cretaceous, North America).", pp.574-588 Fossil palms have also been unearthed here. Age The ages of the Aguja Formation and its primary fossil-bearing unit, the Alto Shale, are not well understood. Due to the presence of the ammonite '' Baculites mclearni'', which only occurs from 80.67 - 80.21 Ma, in the underlying Rattlesnake Mountain Sandstone and the Terlingua Creek Sandstone, it is likely that the Upper Shale was younger than 80.2 Ma. A radiometric date of 76.9 Ma was recovered in the Alto Shale, making it likely the formation wasn't younger than 76.9 Ma. The contact with the overlying Javelina Formation has been estimated at about 70 Ma agoWoodward, H. N. (20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maastrichtian
The Maastrichtian ( ) is, in the International Commission on Stratigraphy (ICS) geologic timescale, the latest age (geology), age (uppermost stage (stratigraphy), stage) of the Late Cretaceous epoch (geology), Epoch or Upper Cretaceous series (stratigraphy), Series, the Cretaceous geologic period, Period or system (stratigraphy), System, and of the Mesozoic geologic era, Era or Erathem. It spanned the interval from . The Maastrichtian was preceded by the Campanian and succeeded by the Danian (part of the Paleogene and Paleocene). It is named after the city of Maastricht, the capital and largest city of the Limburg (Netherlands), Limburg province in the Netherlands. The Cretaceous–Paleogene extinction event (formerly known as the Cretaceous–Tertiary period, Tertiary extinction event) occurred at the end of this age. In this extinction event, mass extinction, many commonly recognized groups such as non-avian dinosaurs, plesiosaurs and mosasaurs, as well as many other lesser-kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florence County, South Carolina
Florence County is a county located in the U.S. state of South Carolina. As of the 2020 census, its population was 137,059. Its county seat is Florence. Florence County is included in the Florence, SC Metropolitan Statistical Area. History Florence County was formed from main sections of Darlington and Marion Counties, plus other townships from Williamsburg and Clarendon Counties, starting in 1888. The last section of Williamsburg County was not added until 1921. Florence County was named after its county seat, Florence, which its founder, General William Harllee in turned named for his daughter, Florence. On December 26, 1921, Black American male Bill McAllister was lynched for having an affair with a white woman. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.47%) is water. State and local protected areas * Lynches River County Park * Moore Farms Botanical Garden (part) * Pee Dee Station Site Wildlife Managem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quinby, South Carolina
Quinby is a town in Florence County, South Carolina, United States. The population was 932 at the 2010 census, up from 842 in 2000. It is part of the Florence Metropolitan Statistical Area. Geography Quinby is located in northern Florence County at (34.228445, -79.732460). It is bordered on the south and west by the city of Florence, the county seat. The town limits extend north to Black Creek, a tributary of the Pee Dee River. Interstate 95 passes north and west of the town, with the closest access from Exit 169, to the north. According to the United States Census Bureau, the town has a total area of , all land. Demographics As of the census of 2000, there were 842 people, 331 households, and 254 families residing in the town. The population density was . There were 351 housing units at an average density of . The racial makeup of the town was 42.87% White, 56.18% African American, 0.12% Native American, and 0.83% from two or more races. Hispanic or Latino of any race w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
