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1by Laan, Richard Van Der“... Kiaer 1932: 12 (family) † Poraspis Kiaer 1930 [family name sometimes seen as † Poraspididae...”
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2by Laan, Richard Van Der“... Kiaer 1932: 12 (family) † Poraspis Kiaer 1930 [family name sometimes seen as † Poraspididae...”
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3by Laan, Richard Van Der“... Kiaer 1932: 25 (family) † Traquairaspis Kiaer 1932 [family name also seen as † Traquairaspididae...”
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4by Laan, Richard Van Der“... Kiaer 1932: 25 (family) † Traquairaspis Kiaer 1932 [family name also seen as † Traquairaspididae...”
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5by Laan, Richard Van Der“... of †Tolypelepidae; family name sometimes seen as †Tolypaspididae] †Tolypelepidae Strand 1934: 328 (family...”
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6by Laan, Richard Van Der“... of †Tolypelepidae; family name sometimes seen as †Tolypaspididae] †Tolypelepidae Strand 1934: 328 (family...”
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7by Laan, Richard Van Der“...†Mediaspidae Heintz 1929: 25, 66 (family) † Mediaspis Heintz 1929 [family name sometimes seen...”
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8by Laan, Richard Van Der“...†Mediaspidae Heintz 1929: 25, 66 (family) † Mediaspis Heintz 1929 [family name sometimes seen...”
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9by Laan, Richard Van Der“...: 5 (family) † Ctenaspis Kiaer 1930 [family name also seen as † Ctenaspididae] : Published as part...”
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10by Laan, Richard Van Der“...: 5 (family) † Ctenaspis Kiaer 1930 [family name also seen as † Ctenaspididae] : Published as part...”
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11by Laan, Richard Van Der“... 1937: 14 (family) † Arctolepis Eastman 1908 [family name also seen as † Arctolepididae] : Published...”
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12by Laan, Richard Van Der“... 1937: 14 (family) † Arctolepis Eastman 1908 [family name also seen as † Arctolepididae] : Published...”
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13by Laan, Richard Van Der“... 1952: 254 (family) † Williamsaspis White 1952 [family name sometimes seen as † Williamsaspididae...”
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14by Laan, Richard Van Der“... 1952: 254 (family) † Williamsaspis White 1952 [family name sometimes seen as † Williamsaspididae...”
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