Ordo Ringkasan for Orectolobiformes
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Acuan utama |
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Ordo |
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Orectolobiformes carpet sharks |
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Kelas |
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Elasmobranchii |
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Sister Order |
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Carchariniformes 155 M years |
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Acuan |
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First Fossil Record |
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late Jurassic |
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Occurs in |
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Laut |
Fresh |
Payau |
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Remark |
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Two dorsal fins, without spines; mouth very short, confined to being well in front of eyes; nostrils specialized, with prominent nasoral grooves wit barbels in most; spiracles too large, below the eye except in Rhincodon; many with small gill slits and with fifth slit overlapping the fourth behind the origin of pectoral fin. |
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Kelas etymology |
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Greek eulanein, elasmos = metal beaten out + Greek brangchia = gills. Ref. 45335. |
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Ordo etymology |
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Greek, orektos = lengthened, prolongued + Greek, lobos = lobe + Latin, forma = shape (Ref. 45335). |
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Keluarga-keluarga |
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