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Ordo Ringkasan for Chimaeriformes
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Acuan utama |
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Ordo |
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Chimaeriformes chimaeras |
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Kelas |
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Holocephali |
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Sister Order |
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Hexanchiformes 400 M years |
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Acuan |
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First Fossil Record |
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early Devonian |
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Occurs in |
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Laut |
Fresh |
Payau |
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Remark |
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Dentition consisting of a few large permanent grinding tooth plates; palatoquadrate fused to neurocranium. Two dorsal fins, the first erectile, with short base, and preceded by an erectile spine, the second nonerectile, low, and with a long base; mouth inferior. Internal fertilization; eggs encased in a brown horny capsule. Water for breathing is chiefly taken in through the nostrils. Maximum length about 1.5 m. |
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Kelas etymology |
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Greek holos = whole + Greek kephale = head. Ref. 45335. |
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Ordo etymology |
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Latin, chimaera = monster. 1634 + Latin, forma = shape (Ref. 45335). |
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Keluarga-keluarga |
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