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Craniops
''Craniops'' is an extinct genus of brachiopods in the family Craniopsidae with species known from the Ordovocian to the Devonian. ''C. curvata'', ''C. elegans'', ''C. estona'' and ''C. obtusa'' are from the Kukruse Stage (Ordovician) of Kohtla-Järve, in north-eastern Estonia. ''C. tenuis'' is a pooleville member of the Bromide Formation from the Middle and Upper Ordovician of Oklahoma.Amsden, T.W. Catalogue of Fossils from the Middle and Upper Ordovician of Oklahoma. Oklahoma Geological Survey, Circular 43. 1957 See also * List of brachiopod genera This is a list of brachiopod genera which includes both extinct (fossil) forms and extant (living) genera (bolded). Names are according to the conventions of the International Code of Zoological Nomenclature. A *'' Aalenirhynchia'' *'' Aberia ... References External links * * ''Craniops'' at fossiilid.info Prehistoric brachiopod genera Paleozoic brachiopods Craniopsida Ordovician first appearances Devonian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craniopsida
Craniopsidae is an extinct family of craniiform brachiopods which lived from the Lower Cambrian (Botomian) to the Lower Carboniferous (Tournaisian). It is the only family in the monotypic superfamily Craniopsoidea and the monotypic order Craniopsida. Craniopsids were among the earliest and simplest brachiopods to appear. The calcitic shell was rounded in profile and biconvex, with both valves equally convex. Like other craniiforms, they had two pairs of adductor (vertical closing) muscles and two pairs of oblique (diagonal sliding) muscles, with the muscle scars shifted to near the center of the shell. They show some similarities with kirengellids The Kirengellids are a group of problematic Cambrian fossil shells of marine organisms. The shells bear a number of paired muscle scars on the inner surface of the valve. These fossils have conventionally been regarded as monoplacophoran mol ..., a group of problematic Cambrian fossil shells of marine organisms. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craniopsidae
Craniopsidae is an extinct family of craniiform brachiopods which lived from the Lower Cambrian (Botomian) to the Lower Carboniferous (Tournaisian). It is the only family in the monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ... superfamily Craniopsoidea and the monotypic order Craniopsida. Craniopsids were among the earliest and simplest brachiopods to appear. The calcitic shell was rounded in profile and biconvex, with both valves equally convex. Like other craniiforms, they had two pairs of adductor (vertical closing) muscles and two pairs of oblique (diagonal sliding) muscles, with the muscle scars shifted to near the center of the shell. They show some similarities with kirengellids, a group of problematic Cambrian fossil shells of marine organisms. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craniforma
Craniata is a class of brachiopods originating in the Cambrian period and still extant today. It is the only class within the subphylum Craniiformea, one of three major subphyla of brachiopods alongside linguliforms and rhynchonelliforms. Craniata is divided into three orders: the extinct Craniopsida and Trimerellida, and the living Craniida, which provides most information on their biology. Living members of the class have shells which are composed of calcite, though some extinct forms my have aragonite shells. The shells are inarticulate (lack a hinge with distinct tooth-and-socket connections) and are usually rounded in outline. There is no pedicle, with the rear edge of the body cavity having the form of a smooth and flat wall perforated by the anus. This class of brachiopods has an unsupported lophophore with only a single row of tentacles. In the absence of a pedicle, the shell is usually attached directly to a hard substrate. Many craniiforms are encrusting animals wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopod
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major categories are traditionally recognized, articulate and inarticulate brachiopods. The word "articulate" is used to describe the tooth-and-groove structures of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic skeletal feature, by which the two main groups can be readily distinguished as fossils. Articulate brachiopods have toothed hinges and simple, vertically-oriented opening and closing muscles. Conversely, inarticulate brachiopods have weak, untoothed hinges and a more complex system of vertical and oblique (diagonal) muscles used to keep the two valves aligned. In many brachiopods, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromide Formation
The Bromide Formation is a geological formation in Oklahoma, USA. It is well known for its diverse echinoderm and trilobite fossil fauna. Location The Bromide Formation crops out in the Arbuckle and Wichita Mountains and in the Criner Hills of Southern Oklahoma. It appears at the surface in particular within Carter, Johnston, Murray and Pontotoc counties (34.0° N, 97.0° W). Stratigraphy The Bromide Formation is the uppermost part of the Simpson Group, and originates from the Upper Ordovician (early Sandbian). This mostly carbonate succession is divided into the Mountain Lake and overlying Pooleville members. Although it primarily consists of limestone, limestone interbedded with shale, and sandstone, also occur. The Bromide Formation is a shallow water marine sediment.Bauer, J.A. Conodonts from the Bromide Formation (Middle Ordovician), South-Central Oklahoma. Journal of Paleontology 68-2 (1994). Much of the Mountain Lake Member comprises meter-scale, deep ramp cyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Brachiopod Genera
This is a list of brachiopod genera which includes both extinct (fossil) forms and extant (living) genera (bolded). Names are according to the conventions of the International Code of Zoological Nomenclature. A *'' Aalenirhynchia'' *'' Aberia'' *''Aboriginella'' *''Abrekia'' *'' Absenticosta'' *''Abyssorhynchia'' *''Abyssothyris'' *'' Acambona'' *'' Acanthalosia'' *'' Acanthambonia'' *'' Acanthatia'' *'' Acanthobasiliola'' *'' Acanthocosta'' *'' Acanthocrania'' *'' Acanthoglypha'' *'' Acanthoplecta'' *'' Acanthoproductus'' *'' Acanthorhynchia'' *'' Acanthorthis'' *'' Acanthospirifer'' *'' Acanthospirina'' *'' Acanthothyris'' *'' Acanthothyropsis'' *'' Acanthotoechia'' *'' Acareorthis'' *'' Acculina'' *'' Achunoproductus'' *'' Acidotocarena'' *'' Acolosia'' *'' Acosarina'' *'' Acritosia'' *''Acrobelesia'' (fossil per IRMNG) *''Acrobrochus'' *'' Acrospirifer'' *'' Acrothele'' *'' Acrothyra'' *'' Acrothyris'' *'' Acrotreta'' *'' Acrotretella'' *'' Actinoconchus'' *'' Actinomena'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kukruse
Kukruse (german: Kuckers) is a village in Toila Parish, Ida-Viru County in northeastern Estonia. It is located by the Tallinn–Narva road (E20), between the cities of Kohtla-Järve and Jõhvi. Adjacent to the village is a district of Kohtla-Järve sharing the same name, Kukruse. Before the 2017 Administrative Reform, the village belonged to Kohtla Parish. As of 2011 Census, the settlement's population was 52. Kukersite, a marine type oil shale of Ordovician age, is named after Kukruse. During the road construction in 2009, a cemetery approximately 800 years old was revealed. Fifty graves were studied. The human remains and objects placed in the graves provide a good picture of 13th century society, culture and beliefs. Some of the finds from Kukruse were displayed at the Estonian History Museum. Kukruse Manor Kukruse (german: link=no, Kuckers) knight manor was first mentioned in 1453. The present building received its appearance in the 19th century when a second floor wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kohtla-Järve
Kohtla-Järve is a city and municipality in northeastern Estonia, founded in 1924 and incorporated as a town in 1946. The city is highly industrial, and is both a processor of oil shales and is a large producer of various petrochemical products. During the 1944–1991 Soviet occupation, large numbers of immigrant workers from Russia and other parts of the former USSR were brought in to populate the rapidly growing city. The population in the Kohtla-Järve area which had been, as of 1934 census, over 90% ethnic Estonian, became overwhelmingly non-Estonian in the second half of the 20th century. According to more recent data (as of 2006) 21% of the city's population are ethnic Estonians; most of the rest are Russians. Kohtla-Järve is the fifth-largest city in Estonia in terms of population. Kohtla-Järve is unusual among the municipalities of Estonia due to its territory being made of several discontiguous parts. The two main parts, Järve (Kohtla-Järve proper) and Ahtme, bot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pooleville
Pooleville is a community located in Carter County, Oklahoma, United States. It is west of the Arbuckles. During the territorial days, the community was originally known as Elk.Shirk, George H. ''Oklahoma Place Names'', Norman, Oklahoma: University of Oklahoma Press, 1965, p.71. At the time of its founding, the community was located in Pickens County, Chickasaw Nation.Charles Goins. ''Historical Atlas of Oklahoma'' (Norman: University of Oklahoma Press, 2006), p. 105. The Elk post office opened January 15, 1890, and the name was changed to Pooleville on July 20, 1907. The current ZIP Code is 73401 assigned to Ardmore. The community was named for an Ardmore banker, E.S. Poole.Shirk, George H. ''Oklahoma Place Names'', Norman, Oklahoma: University of Oklahoma Press, 1965, p.170. In 1907, when Oklahoma became a state, it was decided that Elk should be renamed because the mail kept getting mixed up with Elk City, and so a town meeting was called. Three possible names were chose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Brachiopod Genera
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic Brachiopods
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ''zōḗ'' (), "life", meaning "ancient life" ). It is the longest of the Phanerozoic eras, lasting from , and is subdivided into six geologic periods (from oldest to youngest): # Cambrian # Ordovician # Silurian # Devonian # Carboniferous # Permian The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon and is followed by the Mesozoic Era. The Paleozoic was a time of dramatic geological, climatic, and evolutionary change. The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most modern phyla first appeared. Arthropods, molluscs, fish, amphibians, reptiles, and synapsids all evolved during the Paleozoic. Life began in the ocean but ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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