Nefudina Temporal range: Early Emsian | |
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Artist's reconstruction | |
Scientific classification | |
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Genus: | Nefudina |
Species: | N. qalibahensis |
Nefudina qalibahensis is a rhenanid placoderm from the early Emsiane during the Early Devonian Epoch of Northeastern Saudi Arabia. It is known from skull fragments and scales. [1] it died out during the end of the emsiane.
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2. It is a white crystalline solid at room temperature, and it is highly soluble in water. It can be created by neutralising hydrochloric acid with calcium hydroxide.
Julius Lothar Meyer was a German chemist. He was one of the pioneers in developing the earliest versions of the periodic table of the chemical elements. The Russian chemist Dmitri Mendeleev and he had both worked with Robert Bunsen. Meyer never used his first given name and was known throughout his life simply as Lothar Meyer.
Albite is a plagioclase feldspar mineral. It is the sodium endmember of the plagioclase solid solution series. It represents a plagioclase with less than 10% anorthite content. The pure albite endmember has the formula NaAlSi
3O
8. It is a tectosilicate. Its color is usually pure white, hence its name from Latin, albus. It is a common constituent in felsic rocks.
Mindat.org is a non-commercial interactive online database covering minerals across the world. Originally created by Jolyon Ralph as a private project in 1993, it was launched as a community-editable website in October 2000. As of 2023 it is operated by the Hudson Institute of Mineralogy.
Latimeriidae is the only extant family of coelacanths, an ancient lineage of lobe-finned fish. It contains two extant species in the genus Latimeria, found in deep waters off the coasts of southern Africa and east-central Indonesia. In addition, several fossil genera are known from the Mesozoic of Europe, the Middle East, and the southeastern United States, dating back to the Triassic.
Tsada is a relatively big village 8 km North of Paphos city center. Although the proximity between them, the 612 m elevation difference gives to the Tsada area a totally different identity. It receives 610 millimetres (24 in) of rainfall annually. The climate is much cooler all year long and it also is one of the few areas in the Paphos District that snows almost every year by the end of January. Tsada was the home village of EOKA national hero Evagoras Pallikarides. Although the history of the village can be counted 500 years ago, there is no significant architectural character, and only a few residences were reconstructed in the traditional way. The Melisovouno hill between Tsada and Koili village hosts Paphos television and radio antenna.
Kabanda is a village in the Bassar Prefecture in the Kara Region of north-western Togo. The village is located west the towns of Afoou and Kalia and east of Sante Bas.
Malioma is a village in the Manni Department of Gnagna Province in eastern Burkina Faso. The village has a population of 378. The climate of the village is a 'semi-arid steppe'.
Ganorhynchus is an extinct genus of prehistoric lungfish from the Devonian period. It is only found in Mansfield, Pennsylvania.
Aluminium carbonate (Al2(CO3)3), is a carbonate of aluminium. It is not well characterized; one authority says that simple carbonates of aluminium are not known. However related compounds are known, such as the basic sodium aluminium carbonate mineral dawsonite (NaAlCO3(OH)2) and hydrated basic aluminium carbonate minerals scarbroite (Al5(CO3)(OH)13•5(H2O)) and hydroscarbroite (Al14(CO3)3(OH)36•nH2O).
Darah District or formerly known as Darah Hazara is a District of Panjshir Province in Afghanistan. The inhabitants are predominantly Sunni Hazaras. The population in 2019 was estimated to be 15,407.
The borate fluorides or fluoroborates are compounds containing borate or complex borate ions along with fluoride ions that form salts with cations such as metals. They are in the broader category of mixed anion compounds. They are not to be confused with tetrafluoroborates (BF4) or the fluorooxoborates which have fluorine bonded to boron.
The fluoride phosphates or phosphate fluorides are inorganic double salts that contain both fluoride and phosphate anions. In mineralogy, Hey's Chemical Index of Minerals groups these as 22.1. The Nickel-Strunz grouping is 8.BN.
The borate carbonates are mixed anion compounds containing both borate and carbonate ions. Compared to mixed anion compounds containing halides, these are quite rare. They are hard to make, requiring higher temperatures, which are likely to decompose carbonate to carbon dioxide. The reason for the difficulty of formation is that when entering a crystal lattice, the anions have to be correctly located, and correctly oriented. They are also known as borocarbonates. Although these compounds have been termed carboborate, that word also refers to the C=B=C5− anion, or CB11H12− anion. This last anion should be called 1-carba-closo-dodecaborate or monocarba-closo-dodecaborate.
The sulfate chlorides are double salts containing both sulfate (SO42–) and chloride (Cl–) anions. They are distinct from the chlorosulfates, which have a chlorine atom attached to the sulfur as the ClSO3− anion.
The sulfate carbonates are a compound carbonates, or mixed anion compounds that contain sulfate and carbonate ions. Sulfate carbonate minerals are in the 7.DG and 5.BF Nickel-Strunz groupings.
Borate sulfates are mixed anion compounds containing separate borate and sulfate anions. They are distinct from the borosulfates where the borate is linked to a sulfate via a common oxygen atom.
Paleollanosaurus is an extinct genus of sphenodontid reptile that lived during the Late Triassic.
Pelecymala is an extinct genus of sphenodontian reptile that lived in southwest England during the Triassic period. It has been recovered in recent studies as a primitive member of the group.
https://www.mindat.org/taxon-4842435.html