First fossil record of Pseudoplatystoma corruscans (Siluriformes, Pimelodidae) from the late Pleistocene, Santa Fe, Argentina

被引：2

作者：

Brambilla, Luciano ^{[1
,2
,3
]}

Javier Toledo, Marcelo ^{[4
]}

Alberto Ibarra, Damian ^{[1
]}

机构：

[1] Univ Nacl Rosario, Fac Ciencias Bioquim & Farmaceut, Suipacha 531,S2002LRK, Rosario, Argentina

[2] Consejo Invest Univ Nacl Rosario CIUNR, Rosario, Argentina

[3] Univ Nacl Rosario CEI UNR, Ctr Estudios Interdisciplinarios, Maipu 1065,S2000CGK, Rosario, Argentina

[4] Univ Buenos Aires FCEN, Inst Geociencias Buenos Aires IGEBA, Buenos Aires, DF, Argentina

来源：

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES | 2021年 / 105卷

关键词：

Pleistocene; Fish; Pimelodidae; Argentina; Stratigraphy; TELEOSTEI;

D O I：

10.1016/j.jsames.2020.102987

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A fragment of the neurocranium of a Pimelodidae (LPB 1143), was found in late Pleistocene deposits of the Carcarana river, Santa Fe, Argentina. In this work, we describe the specimen that we assigned to the extant species Pseudoplatystoma corruscans, constituting the first record of this genus during the Pleistocene. Furthermore, the fossil was included in a geometric morphometric analysis intended to evaluate morphological variation of the neumcranium of the extant species of Pseudoplatytoma of Argentina. The results indicate significant intraspecific variation in Pseudoplatystoma corruscans at the same time that the fossil is within the variation shown by this species. Additionally, the stratigraphy of the Carcarana. and Parana rivers in the area, was studied providing a solid base for the paleontology and future biostratigraphic schemes in Santa Fe.

引用

页数：7

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