Pseudochoffatella minima n. sp., a new Larger Benthic Foraminifera from the Lower Cretaceous of Central Iran

被引:0
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作者
Schlagintweit, Felix [1 ]
Rashidi, Koorosh [2 ]
Hanifzadeh, Reza [3 ]
机构
[1] Lerchenauerstr 167, D-80935 Munich, Germany
[2] Yazd Univ, Dept Geol, Yazd 89195741, Iran
[3] Payame Noor Univ, Dept Geol, POB 19395-3697, Tehran, Iran
关键词
Foraminifera; Systematics; Biostratigraphy; lower Cretaceous; YAZD BLOCK; BIOSTRATIGRAPHY; AREA; CLOSURE;
D O I
暂无
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The new Larger Benthic Foraminifera Pseudochoffatella minima n. sp. is described from the uppermost Barremian? to early upper Aptian of the Taft Formation of the Yazd Block, Central Iran. It differs from the upper Aptian-lowermost Albian type-species P cuvillieri Deloffre by its reduced dimensions (test size, chamber height, diameter of proloculus), and can be considered as its direct ancestor. P. minima n. sp. occurs in wackestone in often monotypic assemblages. Differences to Balkhania balkhanica Mamontova (syn. Pseudochoffatella gigantea Kaever), an allied taxon recorded from the lower Aptian of the Tirgan and Taft formations are constrained. P minima n. sp. represents the third species of the genus besides the type-species P cuvillieri Deloffre and the Cenomanian P. algeriana Peybernes, Calvez and Ciszak.
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页码:165 / 175
页数:11
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