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Dercetoides
''Dercetoides'' (meaning "resemblant of ''Dercetis''") is a genus of prehistoric marine ray-finned fish from the Late Cretaceous period. It contains a single species, ''D. venator'', known from the early Cenomanian-aged Amminadav Formation of the West Bank, Palestine __NOTOC__ Palestine may refer to: * State of Palestine, a state in Western Asia * Palestine (region), a geographic region in Western Asia * Palestinian territories, territories occupied by Israel since 1967, namely the West Bank (including East .... It was a member of the Dercetidae, a group of elongated aulopiforms that were related to modern lancetfish and lizardfish. References Dercetidae Prehistoric ray-finned fish genera Late Cretaceous fish of Asia Late Cretaceous bony fish Cenomanian genera Fossils of Palestine Fossil taxa described in 1989 {{Alepisauriformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dercetis (fish)
''Dercetis'' is a genus of prehistoric marine ray-finned fish. It is the type genus of the family Dercetidae, a group of slender, elongate aulopiforms, which were related to modern lizardfish and grinners. It is known from the Late Cretaceous of Europe, the Middle East, and western North America. The following species are known: * †''D. elongatus'' Agassiz, 1835 - Turonian of England (English Chalk), Campanian of Germany (Ahlen Formation) (=''Leptotrachelus sagittatus'' von der Marck, 1873) * †''D. magnificus'' Chida, Brinkman & Murray, 2022 - Campanian of Alberta, Canada ( Bearpaw Formation) * †''D. triqueter'' Pictet, 1850 - Santonian of Lebanon (Sahel Alma), Maastrichtian of the Netherlands & Belgium (Maastricht Formation) Small ''Dercetis'' specimens corresponding to indeterminate species are known from the Turonian of the Czech Republic and Mexico. The initial type species, ''D. scutatus'' Agassiz, 1834 from the Campanian of Germany ( Baumberge Forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopterygii
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinopt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Australia and Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amminadav Formation
The Amminadav Formation is a Mesozoic geologic formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondary ... in Israel. Pterosaur fossils have been recovered from the formation. See also * List of pterosaur-bearing stratigraphic units References Geologic formations of Israel Mesozoic Asia Paleontology in Israel {{geologic-formation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Bank
The West Bank ( ar, الضفة الغربية, translit=aḍ-Ḍiffah al-Ġarbiyyah; he, הגדה המערבית, translit=HaGadah HaMaʽaravit, also referred to by some Israelis as ) is a landlocked territory near the coast of the Mediterranean Sea, Mediterranean in Western Asia that forms the main bulk of the Palestinian territories. It is bordered by Jordan and the Dead Sea to the east and by Israel (see Green Line (Israel), Green Line) to the south, west, and north. Under Israeli occupation of the West Bank, an Israeli military occupation since 1967, its area is split into 165 Palestinian enclaves, Palestinian "islands" that are under total or partial civil administration by the Palestinian National Authority (PNA), and 230 Israeli settlements into which Israeli law in the West Bank settlements, Israeli law is "pipelined". The West Bank includes East Jerusalem. It initially emerged as a Jordanian-occupied territory after the 1948 Arab–Israeli War, before being Jordani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of Palestine
Palestine ( ar, فلسطين, Filasṭīn), Legal status of the State of Palestine, officially the State of Palestine ( ar, دولة فلسطين, Dawlat Filasṭīn, label=none), is a state (polity), state located in Western Asia. Officially governed by the Palestine Liberation Organization (PLO), it claims the West Bank, including East Jerusalem, and the Gaza Strip as its territory, though the entirety of that territory has been Israeli-occupied territories, occupied by Israel since the 1967 Six-Day War. As a result of the Oslo Accords of 1993–1995, the West Bank is currently divided into 165 Palestinian enclaves that are under partial Palestinian National Authority (PNA) rule; the remainder, including 200 Israeli settlement, Israeli settlements, is under Area C (West Bank), full Israeli control. The Gaza Strip has been ruled by the militant Islamic group Hamas and has been subject to Blockade of the Gaza Strip, a long-term blockade by Egypt and Israel since 2007. After W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aulopiformes
Aulopiformes is a diverse order of marine ray-finned fish consisting of some 15 extant and several prehistoric families with about 45 genera and over 230 species. The common names grinners, lizardfishes and allies, or aulopiforms are sometimes used for this group. The scientific name means "''Aulopus''-shaped", from ''Aulopus'' (the type genus) + the standard fish order suffix "-formes". It ultimately derives from Ancient Greek ''aulós'' (αὐλός, "flute" or "pipe") + Latin ''forma'' ("external form"), the former in reference to the elongated shape of many aulopiforms.FishBase (2000) They are grouped together because of common features in the structure of their gill arches. Indeed, many authors have considered them so distinct as to warrant separation in a monotypic superorder of the Teleostei, under the name Cyclosquamata. However, monotypic taxa are generally avoided by modern taxonomists if not necessary, and in this case a distinct superorder seems indeed unwarra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lancetfish
Lancetfishes are large oceanic predatory fishes in the genus ''Alepisaurus'' ("scaleless lizard") in the monogeneric family Alepisauridae. Lancetfishes grow up to in length. Very little is known about their biology, though they are widely distributed in all oceans, except the polar seas. Specimens have been recorded as far north as Greenland. They are often caught as bycatch by vessels long-lining for tuna. The generic name is from Greek ''a-'' meaning "without", ' meaning "scale", and ''sauros'' meaning "lizard". Species The two currently recognized extant species in this genus are: * ''Alepisaurus brevirostris'' Gibbs, 1960 (short-snouted lancetfish) * '' Alepisaurus ferox'' R. T. Lowe, 1833 (long-snouted lancetfish) The anatomic difference between the two species is the shape of the snout, which is long and pointed in ''A. ferox'', and slightly shorter in ''A. brevirostris''. The long-snouted lancefish is found in the tropical and northern sub-tropical waters of the Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizardfish
The Synodontidae or lizardfishes(or typical lizardfish to distinguish them from the Bathysauridae and Pseudotrichonotidae) are benthic (bottom-dwelling) marine and estuarine bony fishes that belong to the aulopiform fish order, a diverse group of marine ray-finned fish consisting of some 15 extant and several prehistoric families. They are found in tropical and subtropical marine waters throughout the world. Lizardfishes are generally small, although the largest species measures about in length. They have slender, somewhat cylindrical bodies, and heads that superficially resemble those of lizards. The dorsal fin is located in the middle of the back, and accompanied by a small adipose fin placed closer to the tail. They have mouths full of sharp teeth, even on the tongue. Lizardfishes are benthic animals that live in shallow coastal waters; even the deepest-dwelling species of lizardfish live in waters no more than deep. Some species in the subfamily Harpadontinae live in bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Ray-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] |
