Ordning Sammanfattning for Clupeiformes
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Huvudreferens |
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Ordning |
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Clupeiformes herrings |
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Klass |
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Actinopterygii |
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Systerordning |
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Elopiformes 140 M years |
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Ref.. |
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Äldsta kända fossil |
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early Cretaceous |
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Förekommer i |
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Marina |
Sötvatten |
Brackvatten |
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Kommentar |
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Recessus lateralis present (part of the otophysic connection in which various sensory canals merge within a chamber in the otic region of the neurocranium, not known from any other group); parasphenoid teeth absent; no large foramen on the anterior ceratohyal; parietals separated by the supraoccipital; no leptocephalous larvae. Most are plankton feeders, with long and sometimes very numerous gill rakers that serve as straining devices. |
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KlassEtymologi |
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Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
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OrdningEtymologi |
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Latin, clupea = sardine + Latin, forma = shape. 1880 (Ref. 45335). |
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Familjer |
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