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单词 Crinoidea
释义

Definition of Crinoidea in English:

Crinoidea

plural nounkrʌɪˈnɔɪdɪəkrīˈnoidēə
Zoology
  • A class of echinoderms that comprises the sea lilies and feather stars. They have slender feathery arms and (in some kinds) a stalk for attachment, and were abundant in the Palaeozoic era.

    〔动〕海百合纲

    Example sentencesExamples
    • Especially important concerns are homology of aboral cup plates, origination of the Crinoidea, early morphologic diversification, phylogeny of the cladids, and definition and early phylogeny of the Articulata.
    • The Crinoidea as a whole is regarded as monophyletic, but from whence this clade was derived and where it fits within the Echinodermata are matters of debate.
    • This study reports the mtDNA sequence and genome map for a member of the echinoderm class Crinoidea, or feather stars, that is generally considered to represent a primitive echinoderm lineage.
    • The trophic history of the Crinoidea is well preserved in the fossil record.
    • Important taxa removed from the Crinoidea since 1978 include the coronate echinoderms; the Hemistreptocrinoidea, and Echmatocrinus.

Origin

Modern Latin (plural), from Greek krinoeidēs 'lily-like', from krinon 'lily'.

Definition of Crinoidea in US English:

Crinoidea

plural nounkrīˈnoidēə
Zoology
  • A class of echinoderms that comprises the sea lilies and feather stars. They have slender feathery arms and (in some kinds) a stalk for attachment, and were abundant in the Paleozoic era.

    〔动〕海百合纲

    Example sentencesExamples
    • Important taxa removed from the Crinoidea since 1978 include the coronate echinoderms; the Hemistreptocrinoidea, and Echmatocrinus.
    • Especially important concerns are homology of aboral cup plates, origination of the Crinoidea, early morphologic diversification, phylogeny of the cladids, and definition and early phylogeny of the Articulata.
    • The Crinoidea as a whole is regarded as monophyletic, but from whence this clade was derived and where it fits within the Echinodermata are matters of debate.
    • The trophic history of the Crinoidea is well preserved in the fossil record.
    • This study reports the mtDNA sequence and genome map for a member of the echinoderm class Crinoidea, or feather stars, that is generally considered to represent a primitive echinoderm lineage.

Origin

Modern Latin (plural), from Greek krinoeidēs ‘lily-like’, from krinon ‘lily’.

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更新时间:2024/10/19 11:54:13