Physical description
''Leptaena'' usually have concentric wrinkling and concentric lines on the shell. ''Leptaena'' have a concavo-convex profile, and are sometimes Semiquadrate to semielliptical. The Cardinal Process is split in two and the hinge line is straight. Their width is usually greater than their length, like most Strophomenids.Distribution
''Leptaena'' fossils have been found on everyReferences
Prehistoric brachiopods Strophomenida Prehistoric brachiopod genera Ordovician brachiopods Silurian brachiopods Devonian brachiopods Paleozoic animals of Africa Paleozoic animals of Asia Paleozoic animals of Australia Paleozoic animals of Europe Paleozoic animals of North America Paleozoic animals of Oceania Paleozoic animals of South America Paleozoic brachiopods of Africa Paleozoic brachiopods of Asia Paleozoic brachiopods of Europe Paleozoic brachiopods of North America Paleozoic brachiopods of Oceania Paleozoic brachiopods of South America Fossils of Afghanistan Fossils of Argentina Fossils of Australia Fossils of Belarus Fossils of Bolivia Fossils of Canada Paleozoic life of Manitoba Paleozoic life of New Brunswick Paleozoic life of Newfoundland and Labrador Paleozoic life of Nova Scotia Paleozoic life of the Northwest Territories Paleozoic life of Nunavut Paleozoic life of Ontario Paleozoic life of Quebec Paleozoic life of Yukon Fossils of China Fossils of Colombia Fossils of the Czech Republic Fossils of Estonia Fossils of France Fossils of Germany Fossils of Greenland Fossils of Iran Fossils of Ireland Fossils of Italy Fossils of Kazakhstan Fossils of Latvia Fossils of Lithuania Fossils of Libya Fossils of Mexico Fossils of Mongolia Fossils of Morocco Fossils of Myanmar Fossils of New Zealand Fossils of Norway Fossils of Poland Fossils of Portugal Fossils of Russia Fossils of Spain Fossils of Sweden Fossils of Turkey Fossils of Ukraine Fossils of Great Britain Fossils of the United States Fossils of Georgia (U.S. state) Fossils of Venezuela Fossil taxa described in 1828 {{brachiopod-stub