OSTRACODES (CRUSTACEA) FROM THE ALLEN FORMATION (LATE CRETACEOUS), NEUQUEN BASIN, ARGENTINA.

被引：14

作者：

Paula Carignano, Ana ^{[1
]}

Adrian Varela, Julio ^{[2
]}

机构：

[1] Univ Nacl La Plata, Fac Ciencias Nat & Museo, Div Paleozool Invertebrados, RA-1900 La Plata, Buenos Aires, Argentina

[2] Univ Nacl La Pampa, Fac Ciencias Exactas & Nat, RA-6300 Santa Rosa, La Pampa, Argentina

来源：

REVISTA BRASILEIRA DE PALEONTOLOGIA | 2011年 / 14卷 / 02期

关键词：

late Campanian-early Maastrichtian; Limnocytheridae; Ilyocyprididae; Neuquen Basin; BIOSTRATIGRAPHY; EVOLUTION; MIDDLE;

D O I：

10.4072/rbp.2011.2.05

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

OSTRACODES (CRUSTACEA) FROM THE ALLEN FORMATION (LATE CRETACEOUS), NEUQUEN BASIN, ARGENTINA. A new microfossil association was found in the Allen Formation at Loma Puntuda (Neuquen Basin, Rio Negro Province, Argentina). It is represented by scarce charophyta and numerous carapaces and valves of ostracods from the families Ilyocyprididae (such as Ilyocypris riograndensis and several species of Nettquenocypris) and Limnocytheridae (with the species Wolburgiopsis neocretacea and Vecticypris sp.). Molluscs, fragments of dinosaur eggshells and a plesiosaur remains had been registered previously in the same profile. This kind of association of non marine with a few marine fauna seems to indicate that the Allen Formation at Loma Puntuda was deposited in a shallow, fresh to oligohaline water body, near the coast.

引用

页码：169 / 178

页数：10

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