Leptaena Analogaeformis
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Rugosa
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Aequalis
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Crassorugata
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Cooperi
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Convexa
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Contermina
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Boyaca
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Borghiana
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Bergstroemi
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Argentina
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Arberae
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptaena Analogaeformis
''Leptaena'' is an extinct genus of mid-sized brachiopod that existed from the Dariwilian epoch to the Emsian epoch, though some specimens have been found in strata as late in age as the Tournasian epoch. Like some other Strophomenids, ''Lepteana'' were epifaunal, meaning they lived on top of the seafloor, not buried within it, and were suspension feeders. 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 every continent except Antarctica. Species ''Leptaena'' was a diverse genus, with over 70 recognized species and subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |