The problematic genus Problematospermum
The problematic genus Problematospermum
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DOI：
10.1002/tax.12722
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发表时间：
2022-04
期刊：
影响因子：
3.4
通讯作者：
P. Herendeen;M. Bickner;E. Bugdaeva;S. Naugolnykh;Elena Kostina
中科院分区：
文献类型：
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作者：
P. Herendeen;M. Bickner;E. Bugdaeva;S. Naugolnykh;Elena Kostina
问题种子虫这个名称被用来指中生代时期的化石种子，其一端有一簇毛，其系统亲缘关系尚不确定。Turutanova‐Ketova引入了两个物种的属名和名称，但在她1930年的出版物中没有得到验证。古植物学家显然没有意识到这一点，因为Turutanova‐Ketova一直被引用为名称的权威。Krassilov在1973年无意中验证了属名Problematospermum和种名P. ovalem，因此该权威应被引用为“Turut.‐Ket.”。前克拉西洛夫”。本文澄清了围绕这些名称的命名问题。另一个问题是克拉西洛夫指出的模式标本丢失了。在此指定一个新模式以代替卵圆假单胞菌缺失的模式。一般诊断为问题精子瘤是修订澄清矛盾的解释在文献中。
The nameProblematospermumhas been used for Mesozoic age fossil seeds with a tuft of hairs at one end, the systematic affinity of which is uncertain. The generic name and names of two species were introduced by Turutanova‐Ketova but not validated in her 1930 publication. Paleobotanists have evidently been unaware of this because Turutanova‐Ketova is consistently cited as the authority for the names. Krassilov inadvertently validated the generic nameProblematospermumand species nameP. ovalein 1973, so the authority should be cited as “Turut.‐Ket. ex Krassilov”. This paper clarifies the nomenclatural problems surrounding these names. An additional problem is that the type specimen indicated by Krassilov is missing. A neotype is designated here to replace the missing type forP. ovale. The generic diagnosis forProblematospermumis amended to clarify contradictory interpretations in the literature.