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Huntoniatonia
''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 ... [...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] |
Phacopina
The Phacopina comprise a suborder of the trilobite order Phacopida. Species belonging to the Phacopina lived from the Lower Ordovician (Tremadocian) through the end of the Upper Devonian (Famennian).Moore, R.C. (ed.). Treatise on Invertebrate Paleontology. Part O – Arthropoda (Trilobitomorpha). 1959 The one unique feature that distinguishes Phacopina from all other trilobites are the very large, separately set lenses without a common cornea of the compound eye. Habitat As far as known, all Phacopina species were marine bottom-dwellers. Origin The Early Ordovician genus '' Gyrometopus'' (superfamily Dalmanitoidea, family Diaphanometopidae) is probably close to the common ancestor of the Phacopina. ''Gyrometopus'' is phacopid in appearance, but a rostral plate is present, unlike in other Phacopina. However, the rostral plate does not divide the cephalic doublure into a left and right section, but instead the rostral suture defines a semicircle in the frontal ¾ of the doublur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalmanitidae
Dalmanitidae is a family of trilobites in the order Phacopida that lived from the Floian (Ordovician) to the 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, whe ... and includes 33 genera. References Dalmanitoidea Trilobite families Early Ordovician first appearances Devonian extinctions Fossils of Georgia (U.S. state) {{phacopida-stub ... [...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] |
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] |
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] |
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] |
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] |
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] |
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