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Spathicephalus
''Spathicephalus'' is an extinct genus of stem tetrapods (early four-limbed vertebrates) that lived during the middle of the Carboniferous Period. The genus includes two species: the type species ''S. mirus'' from Scotland, which is known from two mostly complete skulls and other cranial material, and the species ''S. pereger'' from Nova Scotia, which is known from a single fragment of the skull table. Based on the ''S. mirus'' material, the appearance of ''Spathicephalus'' is unlike that of any other early tetrapod, with a flattened, square-shaped skull and jaws lined with hundreds of very small chisel-like teeth. However, ''Spathicephalus'' shares several anatomical features with a family of stem tetrapods called Baphetidae, leading most paleontologists who have studied the genus to place it within a larger group called Baphetoidea, often as part of its own monotypic family Spathicephalidae. ''Spathicephalus'' is thought to have fed on aquatic invertebrates through a combinati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baphetoidea
Baphetoidea is a superfamily of early tetrapods. It includes the family Baphetidae and several more basal genera such as '' Eucritta'' and ''Spathicephalus'' (which has been given its own family Spathicephalidae). The superfamily has also been called Loxommatoidea, but this name is a junior synonym of Baphetoidea. Taxonomy Baphetoidea was named by Edward Drinker Cope Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested ... in 1875. The name Loxommatoidea was erected by D.M.S. Watson in 1929 for baphetids such as '' Loxomma'', which were then known as loxommatids. Loxommatids were later shown to be members of Baphetidae, and Loxommatoidea was synonymized with Baphetoidea as a result. Because Baphetoidea was the first erected name, it has priority over Loxommatoidea. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baphetidae
Baphetidae is an extinct family of early tetrapods. Baphetids were large labyrinthodont predators of the Late Carboniferous period (Namurian through Westphalian) of Europe. Fragmentary remains from the Early Carboniferous of Canada have been tentatively assigned to the group. The phylogenetic relationships of baphetids is uncertain; while many studies have placed the group as a close relative of Amniota, other analyses have found Baphetidae to be a more basal clade of early stem tetrapods. Baphetids were among the first of the Carboniferous fossil tetrapods to be found and were originally described in 1850 by John William Dawson. The baphetids have been referred to the family Loxommatidae, but this group was later shown to be a junior synonym of Baphetidae, which was named earlier in 1865. Baphetids are known mainly from skulls; very little postcranial material has been found. Palaeobiology The presence of lateral lines and the long rows of needle-like teeth show that most were f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Carboniferous
Early may refer to: History * The beginning or oldest part of a defined historical period, as opposed to middle or late periods, e.g.: ** Early Christianity ** Early modern Europe Places in the United States * Early, Iowa * Early, Texas * Early Branch, a stream in Missouri * Early County, Georgia Other uses * Early (Scritti Politti album), ''Early'' (Scritti Politti album), 2005 * Early (A Certain Ratio album), ''Early'' (A Certain Ratio album), 2002 * Early (name) * Early effect, an effect in transistor physics * Early Records, a record label * the early part of the morning See also * Earley (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone Coal Group
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limestone co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Breton Island
Cape Breton Island (french: link=no, île du Cap-Breton, formerly '; gd, Ceap Breatainn or '; mic, Unamaꞌki) is an island on the Atlantic coast of North America and part of the province of Nova Scotia, Canada. The island accounts for 18.7% of Nova Scotia's total area. Although the island is physically separated from the Nova Scotia peninsula by the Strait of Canso, the long Canso Causeway connects it to mainland Nova Scotia. The island is east-northeast of the mainland with its northern and western coasts fronting on the Gulf of Saint Lawrence with its western coast forming the eastern limits of the Northumberland Strait. The eastern and southern coasts front the Atlantic Ocean with its eastern coast also forming the western limits of the Cabot Strait. Its landmass slopes upward from south to north, culminating in the highlands of its northern cape. One of the world's larger saltwater lakes, ("Arm of Gold" in French), dominates the island's centre. The total population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Edward, Nova Scotia
Point Edward (2001 pop.: 396) is a community in Nova Scotia's Cape Breton Regional Municipality Cape Breton Regional Municipality (often referred to as simply "CBRM") is the Canadian province of Nova Scotia's second largest municipality and the economic heart of Cape Breton Island. As of 2016 the municipality has a population of 94,285. The .... It is located on the southwest shore of the North West Arm of Sydney Harbour, immediately north of the community of North West Arm, south of Edwardsville and west of Westmount. Point Edward is also the name of a headland extending into Sydney Harbour, bifurcating it into the North West Arm and the South Arm. This tip of this headland is located in Edwardsville. ReferencesPoint Edward on Destination Nova Scotia General Service Areas in Nova Scotia Communities in the Cape Breton Regional Municipality {{CapeBretonNS-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard Museum Of Comparative Zoology
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States and one of the most prestigious and highly ranked universities in the world. The university is composed of ten academic faculties plus Harvard Radcliffe Institute. The Faculty of Arts and Sciences offers study in a wide range of undergraduate and graduate academic disciplines, and other faculties offer only graduate degrees, including professional degrees. Harvard has three main campuses: the Cambridge campus centered on Harvard Yard; an adjoining campus immediately across Charles River in the Allston neighborhood of Boston; and the medical campus in Boston's Longwood Medical Area. Harvard's endowment is valued at $50.9 billion, making it the wealthiest academic institution in the world. Endowment inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
