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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

New freshwater mussels (Bivalvia, Unionida) with potential trigonioidid and hyriid affinities from the Early Cretaceous of Brazil

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Author(s):
da Silva, Victor R. [1, 2] ; Varejao, Filipe G. [3] ; Matos, Suzana A. [2] ; Rodrigues, Mariza G. [1] ; Fursich, Franz T. [4] ; Skawina, Aleksandra [5] ; Schneider, Simon [6] ; Warren, V, Lucas ; Assine, Mario L. [7] ; Simoes, Marcello G. [2]
Total Authors: 10
Affiliation:
[1] Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, UNESP, Ave 24-A 1515, BR-13506900 Rio Claro - Brazil
[2] Univ Estadual Paulista, Inst Biociencias, UNESP, Dist Rubicio Jr S-N 510, BR-18618970 Botucatu, SP - Brazil
[3] Univ Fed Parana, Ctr Politecn, Inst Lamir, Setor Ciencias Terra, Av Cel Francisco H dos Santos 100, BR-81531980 Curitiba, Parana - Brazil
[4] Friedrich Alexander Univ Erlangen Nurnberg, FG Palaoumwelt, GeoZentrum Nordbayern, Loewenichstr 28, D-91054 Erlangen - Germany
[5] Univ Warsaw, Fac Biol, Dept Anim Physiol, Ilii Miecznikowa 1, PL-02096 Warsaw - Poland
[6] CASP, West Bldg, Madingley Rd, Cambridge CB3 0UD - England
[7] Warren, Lucas, V, Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, UNESP, Ave 24-A 1515, BR-13506900 Rio Claro - Brazil
Total Affiliations: 7
Document type: Journal article
Source: GEOBIOS; v. 61, p. 41-54, AUG 2020.
Web of Science Citations: 0
Abstract

Two new taxa of freshwater mussels (Bivalvia: Unionida) from the Aptian Crato Formation of the Araripe Basin, NE Brazil, are described. The fossil bivalves are confined to 30- to 130-cm-thick bioturbated mudstones overlying the fossil-rich laminated limestones of the Crato Formation Konservat-Lagerstatte. Individuals are often preserved with closed or splayed articulated valves, some of them potentially in life position, forming an autochthonous to parautochthonous assemblage. Monginellopsis bellaradiata nov. gen., nov. sp. shares key characters with the Trigonioidoidea: (i) the anterior pedal retractor muscle scar is clearly separated from the anterior adductor muscle scar; (ii) the shell has foldlike radial ribs on the posterior half; (iii) a right valve anterior tooth has a striated facet. Araripenaia elliptica nov. gen., nov. sp. is the most abundant and widely distributed unionid of the Crato Formation. Its ornament of anterior inverted V-shaped riblets, and central and posterior radial and sub-radial riblets resembles modern and fossil Hyriidae from the Americas, but also Trigonioidoidea from Eurasia. Its dentition of two smooth anterior pseudocardinals and two smooth posterior laterals in each valve provides no further clues for systematic assignment; muscle scars are not preserved. Assignment to the Hyriidae would make Araripenaia the oldest member of this family known from South America. Moreover, this bivalve assemblage of trigonioidoidids, hyriids, and previously reported silesunionoids suggests palaeobiogeographic links to other areas in both Gondwana and Laurasia. (C) 2020 Elsevier Masson SAS. All rights reserved. (AU)

FAPESP's process: 14/00519-9 - Centralities of night-time leisure in the city of São Carlos-SP and the interface relations
Grantee:Tiago Ferreira Lopes Machado
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 17/22036-8 - Systematics and paleoecology of the bivalves of the crato formation (Lower Cretaceous), Northeastern Brazil: paleoenvironmental and paleogeographic significance
Grantee:Victor Ribeiro da Silva
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 16/13214-7 - Multi-proxy approach of the mixed carbonate-siliciclast Crato Formation: sedimentary evolution, paleogeography and tectonics
Grantee:Filipe Giovanini Varejão
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 18/01750-7 - Bakevelliidae bivalves of the Romualdo Formation (Alagoas stage, Lower Cretaceous), Araripe Basin, Brazil: paleoenvironmental and paleogeographic significance
Grantee:Mariza Gomes Rodrigues
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 17/20803-1 - Stratigraphic and Paleoenvironmental Context of the Macroinvertebrate Assemblages of the Romualdo Formation, Cretaceous, Araripe Basin, and its Paleogeographic Implications
Grantee:Suzana Aparecida Matos da Silva
Support Opportunities: Scholarships in Brazil - Post-Doctoral