Hanleyidae
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Hanleyidae
''Hanleya'' is a genus of polyplacophoran molluscs known from Oligocene and Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ... fossils; it is represented today by a number of species including '' H. sinica'' Xu 1990 (China), '' H. brachyplax'' (Brazil) and ''H. hanleyi'' Bean in Thorpe, 1844 (Chile), which feeds on sponges. References Prehistoric chiton genera Chiton genera Oligocene genus first appearances Miocene genus extinctions Hanleyidae {{paleo-mollusc-stub ...
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Hanleya Brachyplax
''Hanleya brachyplax'' is a species of chiton, a polyplacophoran mollusc, which is endemic to Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population .... References Hanleyidae Endemic molluscs of Brazil Molluscs described in 2010 {{mollusc-stub ...
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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 sometimes known as sea cradles or coat-of-mail shells or suck-rocks, or more formally as loricates, polyplacophorans, and occasionally as polyplacophores. Chitons have a shell composed of eight separate shell plates or valves. These plates overlap slightly at the front and back edges, and yet articulate well with one another. Because of this, the shell provides protection at the same time as permitting the chiton to flex upward when needed for locomotion over uneven surfaces, and even allows the animal to curl up into a ball when dislodged from rocks. The shell plates are encircled by a skirt known as a girdle. Habitat Chitons live worldwide, from cold waters through to the tropics. They live on hard surfaces, such as on or under rocks, or in rock crevices. Some species live quite high in the i ...
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Chiton Genera
Chitons () are marine (ocean), marine molluscs of varying size in the class (biology), class Polyplacophora ( ), formerly known as Amphineura. About 940 Extant taxon, extant and 430 fossil species are recognized. They are also sometimes known as sea cradles or coat-of-mail shells or suck-rocks, or more formally as loricates, polyplacophorans, and occasionally as polyplacophores. Chitons have a shell composed of eight separate shell plates or Valve (mollusc), valves. These plates overlap slightly at the front and back edges, and yet articulate well with one another. Because of this, the shell provides protection at the same time as permitting the chiton to flex upward when needed for locomotion over uneven surfaces, and even allows the animal to curl up into a ball when dislodged from rocks. The shell plates are encircled by a skirt known as a girdle (chiton), girdle. Habitat Chitons live worldwide, from cold waters through to the tropics. They live on hard surfaces, such as ...
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