A PERMIAN MIXOHALINE OSTRACOD ASSOCIATION OF THE TERESINA FORMATION, PARANA BASIN, BRAZIL

被引：2
|
作者：
Trescastro Bergue, Cristianini [1 ]
Araujo Santos Maranhao, Maria da Saudade [2 ]
Ng, Christiano [3 ]
Naumcheva, Maria A. [4 ,5 ]
机构：
[1] Univ Fed Rio Grande do Sul, Dept Interdisciplinar, Campus Litoral Norte,Av Tramandai 976, BR-95625000 Imbe, RS, Brazil
[2] Inst Geol, Secretaria Infraestrutura & Meio Ambiente Estado, Rua Joaquim Tavora 822, BR-04015011 Sao Paulo, SP, Brazil
[3] Ctr Pesquisa & Desenvolvimento Leopoldo Americo M, Ave Horacio Macedo 950, BR-21941915 Rio De Janeiro, RJ, Brazil
[4] Russian Acad Sci, Borissiak Paleontol Inst, Profsoyuznayaulitsa 123, Moscow 117647, Russia
[5] Kazan Volga Reg Fed Univ, Kremlyovskayaulitsa 18, Kazan 420008, Russia
来源：
REVISTA BRASILEIRA DE PALEONTOLOGIA | 2022年 / 25卷 / 01期
关键词：
evolution; marginal marine environments; paleoecology; Teresina Formation; taxonomy; CRUSTACEA OSTRACODA; U-PB; FOSSOCYTHERIDEA SWAIN; PIRABAS FORMATION; FRESH-WATER; MARINE; GENUS; VELATOMORPHA; CONSTRAINTS; STEPHENSON;
D O I：
10.4072/rbp.2022.1.02
中图分类号：
Q91 [古生物学];
学科分类号：
0709 ; 070903 ;
摘要：
New ostracod species are described for Middle to Upper Permian (Guadalupian) rocks of the Teresina Formation, Parana Basin, from two localities in the Sao Paulo State, southwestern Brazil: Xavante Dam and Pau Preto Quarry. Paranacythere nigripallus gen. nov. and sp. nov., Velatomorpha xavante sp. nov., and Velatomorpha pseudoaltilis sp. nov. are herein described. The association Velatomorpha- Paranacythere is proposed as typical of Permian mixohaline environments of the Teresina Formation, and is the most abundant in the two studied localities. Paranacythere nigripallus gen. nov. and sp. nov. is proposed to accommodate a very abundant species with typically cytheroidean characteristics, and tentatively ascribed to the family Cytheruridae. Some ecological remarks are presented based on ostracod population age structure, biostratinomy and taxonomic composition of assemblages. The diagnosis of Velatomorpha Tibert & Dewey is emended.
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页码：24 / 37
页数：14
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