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Crenatosiren
''Crenatosiren'' is an extinct genus of dugongid sirenian known from the late Oligocene (Chattian) of Florida, North Carolina, and South Carolina. The type and only known species is ''Crenatosiren olseni''. Taxonomy ''Crenatosiren'' was originally named ''"Halitherium" olseni'' by Rinehart (1976), who described the species from marine deposits of the late Oligocene (Arikareean NALMA) Parachucla Formation in the Suwannee River in Hamilton County, Florida. Domning (1991) eventually recognized the taxon as more derived than the ''Halitherium'' type species and assigned it to the new genus ''Crenatosiren'', classifying it as a relative of the dugongid ''Rytiodus''. The genus name is derived from the Latin words ''crenatus'' (meaning 'notched') and ''Siren (mythology), siren''. More specimens of ''C. olseni'' were later found in the Ashley Formation, Ashley and Chandler Bridge Formation, Chandler Bridge formations of South Carolina. Palaeoecology ''C. olseni'' primarily ate Seagra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenatosiren ALMNH
''Crenatosiren'' is an extinct genus of dugongid sirenian known from the late Oligocene ( Chattian) of Florida, North Carolina, and South Carolina. The type and only known species is ''Crenatosiren olseni''. Taxonomy ''Crenatosiren'' was originally named ''"Halitherium" olseni'' by Rinehart (1976), who described the species from marine deposits of the late Oligocene (Arikareean NALMA) Parachucla Formation in the Suwannee River in Hamilton County, Florida. Domning (1991) eventually recognized the taxon as more derived than the ''Halitherium'' type species and assigned it to the new genus ''Crenatosiren'', classifying it as a relative of the dugongid '' Rytiodus''. The genus name is derived from the Latin words ''crenatus'' (meaning 'notched') and '' siren''. More specimens of ''C. olseni'' were later found in the Ashley and Chandler Bridge formations of South Carolina South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parachucla Formation
The Parachucla Formation is a geologic formation in the southeastern United States. It preserves fossils from the Aquitanian stage of the early Miocene period. The formation is included in the Hawthorn Group. An exposure at the northern end of the formation has produced fossils estimated to be 19.4 to 20.5 Million years ago (Ma). Another exposure at the southern end of the formation has produced fossils estimated to be 23.9 to 24.7 Ma. Descriptive history The Parachucla Formation was defined in 1908 by Earle Sloan as "weakly lithified shales and mudstones, olive-grey to dark-greenish-grey in color, that crop out on the Savannah River". In 1988, Paul Huddlestun added calcareous beds that underlay Sloan's Parachucla Formation to the formation, calling the new addition the Tiger Leap Member, and the original formation defined by Sloan the Porters Landing Member. In 2001, Weems and Edwards removed the Tiger Leap Member from the Parachucla Formation, raising it in rank to the Tige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metaxytherium
''Metaxytherium'' is an extinct genus of dugong that lived from the Oligocene until the end of the Pliocene. Fossil remains have been found in Africa, Europe, North America and South America. Generally marine seagrass specialists, they inhabited the warm and shallow waters of the Paratethys, Mediterranean, Caribbean Sea and Pacific coastline. American species of ''Metaxytherium'' are considered to be ancestral to the North Pacific family Hydrodamalinae, which includes the giant Steller's sea cow. Discovery and naming The first remains of ''Metaxytherium'' were described in 1822 by Anselme-Gaëtan Demarest as a species of Hippopotamus, Hippo, ''H. medius'' before the genus name ''Metaxytherium'' was coined in 1840 by De Christol. Although the type species was initially designated to be ''M. cuvieri'', later publications argued that the two species are synonymous and ''M. medium'' thus holds precedence. The grammatical changes of the species name were made to match the rules of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashley Formation
The Ashley Formation is a Formation (geology), geologic formation in South Carolina. It preserves fossils dating back to the Paleogene Period (geology), period. Vertebrate fauna Mammals Reptiles Fish Cartilaginous fish Bony fish See also * List of fossiliferous stratigraphic units in South Carolina * Paleontology in South Carolina References Further reading * {{cite web, title= Fossilworks: Gateway to the Paleobiology Database, author= ((Various Contributors to the Paleobiology Database)), url= https://www.fossilworks.org, access-date= 17 December 2021 Paleogene geology of South Carolina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chandler Bridge Formation
The Chandler Bridge Formation is a Formation (geology), geologic formation in South Carolina. It preserves fossils dating back to the Chattian (Late Oligocene) of the Paleogene Period (geology), period, corresponding to the Arikareean in the North American land mammal age, NALMA classification.Chandler Bridge Formation at Fossilworks.org The formation overlies the Ashley Formation and is overlain by the Edisto Formation.Albright et al., 2019, p.84 Vertebrate paleofauna Mammals Carnivorans Cetaceans Sirenians Reptiles Birds Crocodilian ...
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Dugongidae
Dugongidae is a Family (biology), family in the Order (biology), order of Sirenia. The family has one surviving species, the dugong (''Dugong dugon''), one recently Extinction, extinct species, Steller's sea cow (''Hydrodamalis gigas''), and a number of extinct Genus, genera known from fossil records. Dugongidae's body weight ranges from 217 to 307 kg for juveniles, 334 to 424 kg for subadults, and 435 to 568.5 kg for adults. Oral temperatures for individual dugongs is determined from 24° to 34.2 °C. Heart rate readings are from 40 to 96 bpm and vary between individual dugongs. Respiration rate during the out-of-water phase is from 1 to 33. Taxonomy * Family Dugongidae ** Genus extinction, †''Anisosiren'' ** Genus †''Caribosiren'' ** Genus †''Indosiren'' ** Genus †''Lentiarenium'' ** Genus †''Kaupitherium'' ** Genus †''Paralitherium'' ** Genus †''Priscosiren'' ** Genus †''Prohalicore'' ** Genus †''Sirenavus'' ** Subfamily †Halitheriinae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligocene Sirenians
The Oligocene ( ) is a geologic epoch of the Paleogene Period that extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from Ancient Greek (''olígos'') 'few' and (''kainós'') 'new', and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during the Oligocene included a global expansion of gras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleobiology (journal)
Paleobiology is a scientific journal promoting the integration of biology and conventional paleontology, with emphasis placed on biological or paleobiological processes and patterns. It attracts papers of interest to more than one discipline, and occasionally publishes research on recent organisms when this is of interest to paleontologists. Paleontology journals Academic journals published by learned and professional societies Academic journals established in 1975 Quarterly journals English-language journals Paleobiology Cambridge University Press academic journals {{paleontology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioplotherium
''Dioplotherium'' is an extinct genus of sirenian related to the dugongs, known from Neogene-aged deposits from southern North America. Species *''Dioplotherium allisoni'', described as ''Halianassa allisoni'' by Kilmer in 1965 from remains found in the middle Miocene Isidro Formation of Baja California, Mexico, and known from marine deposits in Baja California and California. The species was referred to ''Dioplotherium'' by Domning in 1989.D. P. Domning. 1996. Bibliography and Index of the Sirenia and Desmostylia. ''Smithsonian Contributions to Paleobiology'' 80:1-611 *''Dioplotherium manigaulti'', was described by Edward Drinker Cope in 1883 on the basis of a partial premaxilla with a tusk found near Charleston, South Carolina. Nothing more was known of the species until a nearly complete skull was found in the Suwannee River by Gary S. Morgan in 1985. Additional fossils ascribed to ''D. manigaulti'' have been found in the Charleston Phosphate Beds and Ashley River phosphat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seagrass
Seagrasses are the only flowering plants which grow in marine (ocean), marine environments. There are about 60 species of fully marine seagrasses which belong to four Family (biology), families (Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae), all in the order Alismatales (in the clade of monocotyledons). Seagrasses evolved from terrestrial plants which recolonised the ocean 70 to 100 million years ago. The name ''seagrass'' stems from the many species with long and narrow Leaf, leaves, which grow by rhizome extension and often spread across large "Seagrass meadow, meadows" resembling grassland; many species superficially resemble terrestrial grasses of the family Poaceae. Like all autotrophic plants, seagrasses photosynthesize, in the submerged photic zone, and most occur in shallow and sheltered coastal waters anchored in sand or mud bottoms. Most species undergo submarine pollination and complete their life cycle underwater. While it was previously believed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida Museum Of Natural History
The Florida Museum of Natural History (FLMNH) is Florida's official state-sponsored and chartered natural history museum. Its main facilities are located at 3215 Hull Road on the campus of the University of Florida in Gainesville, Florida, Gainesville. The main public exhibit facility, Powell Hall and the attached McGuire Center, is located in the Cultural Plaza, which it shares with the Samuel P. Harn Museum of Art and the Curtis M. Phillips Center for the Performing Arts. The main research facility and former public exhibits building, Dickinson Hall, is located on the east side of campus at the corner of Museum Road and Newell Drive. On April 18, 2012, the American Institute of Architects's Florida chapter placed Dickinson Hall on its list of Florida Architecture: 100 Years. 100 Places as the Florida Museum of Natural History / Formerly Florida Museum of Natural Sciences. Powell Hall's permanent public exhibits focus on the flora, fauna, fossils, and historic peoples of the st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
