種 見內文
波角石(學名:Cymatoceras)是一屬已滅絕的鸚鵡螺類。牠們可說是最常見的鸚鵡螺類化石之一,尤其以產於馬達加斯加的波角石最為著名。[1]
特徵
波角石的外殼上的肋紋和波狀的縫合線和現生種的鸚鵡螺非常相似,但波角石的殼口形狀較為渾圓,整體外觀也更為圓滾一些。[2]
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Cymatoceras albense
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Cymatoceras atlas
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Cymatoceras bayfieldi
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Cymatoceras bifidum
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Cymatoceras bifurcatum
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Cymatoceras carlottense
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Cymatoceras cenomanense
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Cymatoceras colombiana
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Cymatoceras crebricostatum
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Cymatoceras deslongchampsianum
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Cymatoceras eichwaldi
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Cymatoceras elegans
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Cymatoceras hendersoni
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Cymatoceras hilli
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Cymatoceras honmai
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Cymatoceras hunstantonensis
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Cymatoceras huxleyanum
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Cymatoceras karakaschi
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Cymatoceras kayeanum
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Cymatoceras kossmati
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Cymatoceras loricatum
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Cymatoceras ludevigi
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Cymatoceras manuanensis
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Cymatoceras mikado
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Cymatoceras neckerianum
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Cymatoceras negama
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Cymatoceras neocomiense
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Cymatoceras pacificum
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Cymatoceras paralibanoticum
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Cymatoceras patagonicum
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Cymatoceras patens
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Cymatoceras perstriatum
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Cymatoceras picteti
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Cymatoceras pseudoatlas
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Cymatoceras pseudoelegans
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Cymatoceras pseudonegama
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Cymatoceras pseudoneokomiense
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Cymatoceras pulchrum
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Cymatoceras radiatum
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Cymatoceras renngarteni
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Cymatoceras sakalavum
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Cymatoceras sarysuense
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Cymatoceras savelievi
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Cymatoceras semilobatum
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Cymatoceras sharpei
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Cymatoceras tenuicostatum
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Cymatoceras tourtiae
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Cymatoceras tskaltsithelense
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Cymatoceras tsukushiense
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Cymatoceras virgatum
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Cymatoceras yabei
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Nautilus (Cymatoceras) formosus
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Nautilus (Cymatoceras) saussureanus
參考文獻