CLASSIFICATION OF TERTIARY FOSSIL DONACIINAE OF NORTH-AMERICA AND THEIR IMPLICATIONS ABOUT EVOLUTION OF DONACIINAE (COLEOPTERA, CHRYSOMELIDAE)
CLASSIFICATION OF TERTIARY FOSSIL DONACIINAE OF NORTH-AMERICA AND THEIR IMPLICATIONS ABOUT EVOLUTION OF DONACIINAE (COLEOPTERA, CHRYSOMELIDAE)
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DOI：
10.1139/z90-297
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发表时间：
1990-10-01
影响因子：
1.4
通讯作者：
ASKEVOLD, IS
中科院分区：
文献类型：
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作者：
ASKEVOLD, IS
来自科罗拉多渐新世弗洛里森特页岩的Donacia primaeva威克姆标本与现存物种Plateumaris nitida（Germar）的雄性标本无法区分，并被分配到P. nitida组。化石产于阿尔伯塔晚古新世Paskapoo组（Donacia wightoni n.种）是Donaciinae最古老的化石，被分配到Donacia（Donacia），一个生态和结构高度衍生的亚属。这两个物种都被分配到现存物种的小群体，而不是最原始的Donaciinae。它们与现存的分类群相似，这表明它们在很长一段时间内保持了相当大的结构停滞。
Specimens of Donacia primaeva Wickham from the Oligocene Florissant shales of Colorado are indistinguishable from male specimens of the extant species Plateumaris nitida (Germar), and are assigned to the P. nitida group. A fossil from the Late Paleocene Paskapoo Formation of Alberta (Donacia wightoni n. sp.) is the oldest fossil of Donaciinae, assigned to Donacia (Donacia), an ecologically and structurally highly derived subgenus. Both species are assigned to small groups of extant species which are not the most primitive Donaciinae. They are similar to extant taxa, which suggests they have maintained considerable structural stasis over a long period of time.