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Huntoniatonia Lingulifer
''Huntoniatonia'' is genus of trilobites, an extinct group of marine arthropods of average to large size (up to 15 cm long). Description Like all sighted Phacopina, ''Huntoniatonia'' has eyes with relatively large, individually set calcite lenses (so-called schizochroal eyes). The natural fracture lines coming from the back of the eye, cross the margin of the headshield (or cephalon) to the side (or proparian sutures in science jargon). From the front of the eye the sutures from both sides run along the edge of the central raised area (or glabella) into each other, and do not cross the margin of the cephalon, resulting in yoked free cheeks (or librigenae). Like in all Dalmanitidae, the articulated midsection of the body (or thorax) has 11 segments. The cephalon of ''Huntoniatonia'' has a broad, flat frontal margin, with an extension to the front, a bit like a dolphin. The frontal lobe of the moderately convex glabella is much wider and longer than the other three pairs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lochkovian
The Lochkovian is one of three faunal stages in the Early Devonian Epoch. It lasted from 419.2 ± 3.2 million years ago to 410.8 ± 2.8 million years ago. It marked the beginning of the Devonian Period, and was followed by the Pragian Stage. It is named after the village of Lochkov in the Czech Republic, now part of the city of Prague Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate .... The GSSP is located within the Lochkow Formation at the Klonk Section in Prague. In North America the Lochkovian Stage is represented by Gedinnian or Helderbergian time. References Early Devonian {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began domina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bois D'Arc Formation
The Bois d'Arc Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Devonian period. See also * List of fossiliferous stratigraphic units in Oklahoma * Paleontology in Oklahoma Paleontology in Oklahoma refers to paleontological research occurring within or conducted by people from the U.S. state of Oklahoma. Oklahoma has a rich fossil record spanning all three eras of the Phanerozoic Eon. Oklahoma is the best source of Pe ... References * Devonian geology of Oklahoma Devonian southern paleotemperate deposits {{Devonian-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntoniatonia Lingulifer
''Huntoniatonia'' is genus of trilobites, an extinct group of marine arthropods of average to large size (up to 15 cm long). Description Like all sighted Phacopina, ''Huntoniatonia'' has eyes with relatively large, individually set calcite lenses (so-called schizochroal eyes). The natural fracture lines coming from the back of the eye, cross the margin of the headshield (or cephalon) to the side (or proparian sutures in science jargon). From the front of the eye the sutures from both sides run along the edge of the central raised area (or glabella) into each other, and do not cross the margin of the cephalon, resulting in yoked free cheeks (or librigenae). Like in all Dalmanitidae, the articulated midsection of the body (or thorax) has 11 segments. The cephalon of ''Huntoniatonia'' has a broad, flat frontal margin, with an extension to the front, a bit like a dolphin. The frontal lobe of the moderately convex glabella is much wider and longer than the other three pairs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntoniatonia Huntonensis
''Huntoniatonia'' is genus of trilobites, an extinct group of marine arthropods of average to large size (up to 15 cm long). Description Like all sighted Phacopina, ''Huntoniatonia'' has eyes with relatively large, individually set calcite lenses (so-called schizochroal eyes). The natural fracture lines coming from the back of the eye, cross the margin of the headshield (or cephalon) to the side (or proparian sutures in science jargon). From the front of the eye the sutures from both sides run along the edge of the central raised area (or glabella) into each other, and do not cross the margin of the cephalon, resulting in yoked free cheeks (or librigenae). Like in all Dalmanitidae, the articulated midsection of the body (or thorax) has 11 segments. The cephalon of ''Huntoniatonia'' has a broad, flat frontal margin, with an extension to the front, a bit like a dolphin. The frontal lobe of the moderately convex glabella is much wider and longer than the other three pairs of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntonia (isopod)
''Huntonia'' is a monotypic genus of isopods belonging to the family Philosciidae Philosciidae are a family of woodlice (terrestrial isopod crustaceans). They occur almost everywhere on earth, with most species found in (sub)tropical America, Africa and Oceania, and only a few in the Holarctic The Holarctic realm is a bio .... The only species is ''Huntonia montana''. References {{Taxonbar, from=Q11844206 Woodlice Isopod genera Monotypic crustacean genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isopod
Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax. Isopods have various feeding methods: some eat dead or decaying plant and animal matter, others are grazers, or filter feeders, a few are predators, and some are internal or external parasites, mostly of fish. Aquatic species mostly live on the seabed or bottom of freshwater bodies of water, but some taxa can swim for a short distance. Terrestrial forms move around by crawling and tend to be found in cool, moist places. Some species are able to roll themselves into a ball as a defense mechanism or to conserve moisture. There are over 10,000 identified species of isopod worldwide, with around 4,50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odontochile
''Odontochile'' is a genus of trilobites in the order Phacopida, family Dalmanitidae.Struve, W. Suborder Phacopina, p. O471-O472. ''in'' Moore, R.C. (ed.). Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha). 1959 These trilobites were fast-moving low-level epifauna and detritivore. They lived in the Devonian period, from 414 to 391 million years ago. Distribution Silurian of China; Silurian to Devonian of Australia and the United States; Devonian of Algeria, Canada, the Czech Republic, France, Germany, Kazakhstan, Morocco and Spain. Description ''Odontochile'' is genus of trilobites with a large (about long), moderately vaulted exoskeleton with an inverted egg-shaped outline (about 1.6× longer than wide). Its headshield (or cephalon) is semicircular, with long (genal) spines extending from the side of the cephalon back to the tailshield (or pygidium). The frontal margin of the cephalon is semicircular to parabolic, and lacks an anterior e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philosciidae
Philosciidae are a family of woodlice (terrestrial isopod crustaceans). They occur almost everywhere on earth, with most species found in (sub)tropical America, Africa and Oceania, and only a few in the Holarctic The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical reg .... Genera This is a list of 123 genera in the family Philosciidae, updated 2018. References External links * {{Taxonbar, from=Q1647772 Woodlice Crustacean families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago (Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out. One important event in this period was the initial establishment of terrestrial life in what is known as the Silurian-Devonian Terrestrial Revolution: vascular plants emerged from more primitive land plants, dikaryan fungi started expanding and diversifying along with glomeromycotan fungi, and three groups of arthropods ( myriapods, arachnids and hexapods) became fully terrestrialized. A significant evolutionary milestone d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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