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Retodus
''Retodus'' is an extinct genus of prehistoric lungfish found in Cretaceous-aged freshwater strata of Egypt (Baharija Formation), Algeria and Niger. The type species, ''R. tuberculatus'', was named in 2006.Churcher, Charles & De Iuliis, Gerry & Kleindienst, Maxine. (2006). A new genus for the Dipnoan species ''Ceratodus tuberculatus'' Tabaste, 1963. ''Geodiversitas''. 28. 635-647. It was originally named as a species of ''Ceratodus'' and ''Neoceratodus'' in 1963.Tabaste, N. (1963). — Études de restes de poissons du Crétacé saharien, in Mélanges ichthyologiques dédiés à la mémoire d’Achille Valenciennes (1794-1865). ''Mémoires de l’Institut français d’Afrique noire'' 68: 475-485. Description Tooth plates of ''R. tuberculatus'' are characterised by four transverse ridges, broadly rounded crests, a reticular pattern of ridges and hollows, and large adult size. See also * Sarcopterygii * List of sarcopterygians * List of prehistoric bony fish A ''list'' is any ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baharija Formation
The Bahariya Formation (also transcribed as Baharija Formation) is a List of fossiliferous stratigraphic units in Egypt, fossiliferous Formation (stratigraphy), geologic formation dating back to the early Cenomanian, which outcrops within the Bahariya Oasis, Bahariya depression in Egypt, and is known from oil exploration drilling across much of the Libyan Desert, Western Desert where it forms an important oil Petroleum reservoir, reservoir.Weishampel, David B; et al (2004). "Dinosaur distribution (Late Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 604. . Extent The Bahariya Formation forms the base of the depression, the lower part of the enclosing escarpment and all of the small hills within. The type section for the formation is found at Gebel El-Dist, a hill at the northern end of the Bahariya depression. Stratigraphy and sedimentology Four depositional seque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratodontidae
Ceratodontidae is an extinct family of lungfish with fossils known from the earliest Triassic to the Eocene. Taxonomy Although the extant Queensland lungfish was formerly also classified in this family due to its similar appearance, phylogenetic evidence indicates that it belongs in a different family, Neoceratodontidae. Despite the family's name, Neoceratodontidae actually diverged from other lungfish earlier than Ceratodontidae did, although both are estimated to have diverged during the Late Carboniferous along with the rest of Ceratodontoidei. Due to diverging later, Ceratodontidae is also closer to the crown group of the suborder Ceratodontoidei (which contains the extinct Gnathorhizidae and the extant Lepidosirenidae) than Neoceratodontidae is. Ceratodontidae serves as a sister group to a clade containing Ptychoceratodontidae, Lepidosirenidae, and Gnathorhizidae, whereas Neoceratodontidae is a sister group to the clade of Ceratodontidae and the other three families. Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Sarcopterygians
This list of lobe-finned fish is a comprehensive listing of all genera that have ever been included in the class Sarcopterygii, excluding purely vernacular terms and Tetrapods. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful ('' nomen dubium''), or were not formally published ('' nomen nudum''), as well as junior synonyms. Extant genera are bolded. All non-bolded genera are extinct. Scope and terminology There is no official, canonical list of lobe-finned fish genera. Authors and Year The authors column lists the authors of the formal description responsible for the erection of the genus listed. They are not necessarily the same as the authors of the type species as sometimes a species from one genus is determined sufficiently distinct to warrant the erection of a new genus to house it. If this is the case, only the latter authors will be listed. The year column notes the year the description was published. Status Nami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stomatosuchus Inermis
''Stomatosuchus'' (type species ''S. inermis'') is an extinct stomatosuchid neosuchian from the Late Cretaceous (Cenomanian) of Egypt. Much of what is known about ''Stomatosuchus'' has been inferred from the related genus ''Laganosuchus''. Description It grew to a length of , and possessed a long, flattened skull with lid-like jaws that were lined with small, conical teeth and the skull reached up to long. The mandible may have been toothless and perhaps even supported a pelican-like throat pouch.Naish, D. 2002Fossils explained 34: Crocodilians ''Geology Today'' 2: 71-77Archived copyfrom 24 January 2019. This pouch however could have been used to scoop up fish and sharks much like a modern day pelican, the conical teeth would prevent the prey for escaping. Due to such a bizarre skull structure, much about the diet of ''S. inermis'' remains unknown. The only known specimen of ''S. inermis'' consisted of a partial skull and two caudal vertebrae. It was collected in Egypt during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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 bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Lobe-finned Fish 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. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Prehistoric Bony Fish
A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College Albert A. List College of Jewish Studies, known simply as List College, is the undergraduate school of the Jewish Theological Seminary of America (JTS). It was founded by Solomon Schechter in 1909 as the Teachers Institute with the original goa ..., an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union club Other uses * Angle of list, the leaning to either port or starboard of a ship * List (information), an ordered collection of pieces of information ** List (abstract data type), a method to organize data in computer science * List on Sylt, previously called List, the northernmost village in Germany, on the island of Sylt * ''List'', an alternative term for ''roll'' in flight dynamics * To ''list'' a building, etc., in the UK it means to designate it a listed building that may not be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niger
) , official_languages = , languages_type = National languagesRépublique du Niger, "Loi n° 2001-037 du 31 décembre 2001 fixant les modalités de promotion et de développement des langues nationales." L'aménagement linguistique dans le monde (accessed 21 September 2016) , languages = , religion_ref = , religion_year = 2012 , religion = , demonym = Nigerien , capital = , coordinates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algeria
) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , religion = , official_languages = , languages_type = Other languages , languages = Algerian Arabic (Darja) French , ethnic_groups = , demonym = Algerian , government_type = Unitary semi-presidential republic , leader_title1 = President , leader_name1 = Abdelmadjid Tebboune , leader_title2 = Prime Minister , leader_name2 = Aymen Benabderrahmane , leader_title3 = Council President , leader_name3 = Salah Goudjil , leader_title4 = Assembly President , leader_name4 = Ibrahim Boughali , legislature = Parliament , upper_house = Council of the Nation , lower_house ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egypt
Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Mediterranean Sea to the north, the Gaza Strip of Palestine and Israel to the northeast, the Red Sea to the east, Sudan to the south, and Libya to the west. The Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia. Cairo is the capital and largest city of Egypt, while Alexandria, the second-largest city, is an important industrial and tourist hub at the Mediterranean coast. At approximately 100 million inhabitants, Egypt is the 14th-most populated country in the world. Egypt has one of the longest histories of any country, tracing its heritage along the Nile Delta back to the 6th–4th millennia BCE. Considered a cradle of civilisation, Ancient Egypt saw some of the earliest developments of writing, agriculture, ur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chordata
A chordate () is an animal of the phylum Chordata (). All chordates possess, at some point during their larval or adult stages, five synapomorphies, or primary physical characteristics, that distinguish them from all the other taxa. These five synapomorphies include a notochord, dorsal hollow nerve cord, endostyle or thyroid, pharyngeal slits, and a post-anal tail. The name “chordate” comes from the first of these synapomorphies, the notochord, which plays a significant role in chordate structure and movement. Chordates are also Bilateral symmetry, bilaterally symmetric, have a coelom, possess a circulatory system, and exhibit Metameric, metameric segmentation. In addition to the morphological characteristics used to define chordates, analysis of genome sequences has identified two conserved signature indels (CSIs) in their proteins: cyclophilin-like protein and mitochondrial inner membrane protease ATP23, which are exclusively shared by all vertebrates, tunicates and cep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
