Ptychopariidae

	Ptychopariidae Ptychopariidae is a family of trilobites, containing the following genera: '' Achlysopsis'' '' Altikolia'' '' Altitudella'' '' Amecephalites'' '' Asthenopsis'' '' Austinvillia'' '' Balangcunaspis'' ''Bashania'' '' Bathyholcus'' '' Bathyocos'' '' Billingsaspis'' '' Binodaspis'' ''Blairella'' – see '' Neoblairella'' '' Bolaspidina'' '' Brunswickia'' '' Bulkuraspis'' '' Caborcella'' '' Callidaspina'' '' Callidaspis'' '' Cathayanella'' '' Champlainia'' '' Chengshanaspis'' '' Chinghisicus'' '' Chunghwaella'' '' Conopolus'' '' Dananzhuangia'' '' Deltina'' '' Douposiella'' '' Elrathina'' '' Entsyna'' '' Eodouposiella'' '' Eokochaspis'' '' Eosoptychoparia'' '' Eospencia'' '' Eurostina'' '' Finecrestia'' '' Gaotanaspis'' '' Gaphuraspis'' '' Gedongaspis'' '' Gunnia'' '' Hadrocephalites'' '' Hadrokraspedon'' '' Hamptonella'' '' Hejinaspis'' '' Hemicricometopus'' '' Hewenia'' '' Holasaphus'' '' Horbusonia'' '' Illtydaspis'' '' Jangudasp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Asthenopsis ''Asthenopsis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period, which lasted from approximately 542 to 488 million years ago. References Cambrian trilobites of Australia Ptychopariida genera Fossil taxa described in 1939 Ptychopariidae Cambrian genus extinctions {{Ptychopariida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Champlainia ''Champlainia'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ..., which lasted from approximately 542 to 488 million years ago. References Cambrian trilobites Cambrian trilobites of North America Ptychopariida genera Ptychopariidae {{Ptychopariida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Altitudella ''Altitudella'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Botomian stage, which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million .... References Cambrian trilobites Ptychopariida genera Ptychopariidae {{Ptychopariida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ptychopariida Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second half of the Lower Cambrian, and the last species did not survive the Ordovician–Silurian extinction event. Trilobites have facial sutures that run along the margin of the glabella and/or fixigena to the shoulder point where the cephalon meets the thorax. These sutures outline the cranidium, or the main, central part of the head that does not include the librigena (free cheeks). The eyes are medial along the glabella on the suture line (and some species have no eyes). The fossils of the moults of trilobites can often be told from the fossils of the actual animals by whether the librigena are present. (The librigena, or cheek spines, detach during moulting.) In ptychopariids, short bladelike genal spines are often present on the tips of the librigena. The thorax is large and is typically made up of eight or more segments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The Czech Republic has a hilly landscape that covers an area of with a mostly temperate continental and oceanic climate. The capital and largest city is Prague; other major cities and urban areas include Brno, Ostrava, Plzeň and Liberec. The Duchy of Bohemia was founded in the late 9th century under Great Moravia. It was formally recognized as an Imperial State of the Holy Roman Empire in 1002 and became a kingdom in 1198. Following the Battle of Mohács in 1526, the whole Crown of Bohemia was gradually integrated into the Habsburg monarchy. The Protestant Bohemian Revolt led to the Thirty Years' War. After the Battle of White Mountain, the Habsburgs consolidated their rule. With the dissolution of the Holy Empire in 1806, the Cro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Munis Entomology & Zoology A municipal bond, commonly known as a muni, is a bond issued by state or local governments, or entities they create such as authorities and special districts. In the United States, interest income received by holders of municipal bonds is often, but not always, exempt from federal and state income taxation. Typically, only investors in the highest tax brackets benefit from buying tax-exempt municipal bonds instead of taxable bonds. Taxable equivalent yield calculations are required to make fair comparisons between the two categories. The U.S. municipal debt market is relatively small compared to the corporate market. Total municipal debt outstanding was $4 trillion as of the first quarter of 2021, compared to nearly $15 trillion in the corporate and foreign markets. Local authorities in many other countries in the world issue similar bonds, sometimes called local authority bonds or other names. History Municipal debt predates corporate debt by several centuries—the early Rena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]