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Strobilepis
''Strobilepis'' is an extinct genus of Devonian-Carboniferous Multiplacophoran bearing close similarity to ''Polysacos ''Polysacos'' is an extinct genus of multiplacophorans (chitons) known from articulated Carboniferous fossils; its seventeen shell plates are arranged in three rows, with seven iterated units. It demonstrates that multiplacophora are related to mo ...''. References Devonian molluscs Carboniferous molluscs Prehistoric chiton genera Late Devonian animals {{chiton-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiplacophora
Multiplacophora is a stem-group of chitons with a number of plates arranged in 7 rows along the body. They date to at least the Upper Cambrian, but two lower Cambrian fossils- ''Ocruranus'' and '' Trachyplax'' - may extend the range downwards. Families and genera * Family Hercolepadidae Dzik, 1986 ** Genus '' Hercolepas'' Aurivillius, 1892 ** Genus ''Protobalanus'' Hall and Clarke, 1888 * Family Strobilepidae Hoare and Mapes, 1995 ** Genus '' Aenigmatectus'' Hoare and Mapes, 1996 ** Genus '' Deltaplax'' Puchalski, Johnson, Kauffman and Eernisse, 2009 ** Genus '' Diadeloplax'' Hoare and Mapes, 1995 ** Genus '' Hannestheronia'' Vinther, Jell, Kampouris, Carney, Racicot & Briggs, 2012 ** Genus ''Polysacos'' Vendrasco, Wood and Runnegar, 2004 ** Genus ''Strobilepis ''Strobilepis'' is an extinct genus of Devonian-Carboniferous Multiplacophoran bearing close similarity to ''Polysacos ''Polysacos'' is an extinct genus of multiplacophorans (chitons) known from articulated Carbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polysacos
''Polysacos'' is an extinct genus of multiplacophorans (chitons) known from articulated Carboniferous fossils; its seventeen shell plates are arranged in three rows, with seven iterated units. It demonstrates that multiplacophora are related to modern polyplacophora. It was fringed with a ring of hollow spines resembling those of the Ordovician ''Echinochiton ''Echinochiton'' is an extinct genus of Ordovician chiton Chitons () are marine molluscs of varying size in the class Polyplacophora (), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are also ...''. References Prehistoric chiton genera {{paleo-mollusc-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian Molluscs
The Devonian ( ) is a period (geology), 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. Pteridophyte, 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 Pteridospermatophyta, first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and Hexapoda, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous Molluscs
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian lineage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Chiton 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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
