Late Cretaceous phymosomatids and the true identity of Cidarites granulosus Goldfuss, 1829 (Echinoidea, Phymosomatoida)
Late Cretaceous phymosomatids and the true identity of Cidarites granulosus Goldfuss, 1829 (Echinoidea, Phymosomatoida)
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晚白垩纪 phymosomatoids 和 Cidarites crumbusus 的真实身份 Goldfuss, 1829（海胆总科，Phymosomatoida）
DOI：
10.11646/zootaxa.3271.1.2
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发表时间：
2012
期刊：
影响因子：
0.9
通讯作者：
J. W. M.
中科院分区：
文献类型：
--
作者：
Schlüter;Kutscher;J. W. M.
1853年在d‘Archiac&Haime中对白垩纪晚期常见的规律性海绵体属Phymosoma Haime种的修订表明，文献中普遍误解了Cidarites graosus Goldfuss，1829。本种的模式标本无疑与来自德国东北部吕根的下马斯特里赫特山脉的材料同种。作者在西欧和中东的北温带(北部)地区所称的肉芽肿实际上代表了一种未描述的形式，我们在这里将其命名为ravni sp。Nov.，不同于细粒Cidarites，它适应性地具有更发达的双列孔带，在初生节上具有比例较大的马龙，有平整的蠕虫，以及粗壮的非刻面的初生刺。细粒Cidarites在Phymosomatidae Pomel，1883年科中的适当位置是不明确的；它似乎是最密切的亲缘关系。
A revision of Late Cretaceous species of the common regular echinoid genus Phymosoma Haime in d’Archiac & Haime, 1853 has revealed that Cidarites granulosus Goldfuss, 1829 has generally been misinterpreted in the literature. The type specimen of this species is undoubtedly conspecific with material from the lower Maastrichtian of Rügen, northeast Germany. What authors have referred to as Phymosoma granulosum in northern temperate (boreal) regions of western Europe and in the Middle East in fact represents an undescribed form which we here name Phymosoma ravni sp. nov., which differs from Cidarites granulosus in having better-developed biserial pore zones adapically, proportionally larger mamelons on primary tubercles, a flush peristome, and stout, non-facetted primary spines. The proper placement of Cidarites granulosus within the family Phymosomatidae Pomel, 1883 is ambiguous; it appears to be most closely related to Phymosoma.