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| View Original: | Orthoceratids Erfoud Morocco section.JPG (960x720) | |||
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| Keywords: Orthoceratids Erfoud Morocco section.JPG Polished section of Late Silurian-Devonian Orthoceras limestone Erfoud Morocco Internal characters of orthoceratid nautiloids; a septa; b siphuncle; c connecting rings d septal necks short othocoanitic ; e endocameral deposits; f sediment infillings The camerae of the shells are mostly infilled by spathic calcite Dimensions 4x3 cm own date Antonov Orthocerida Orthocerida fossils | ||||
