The branchial skeleton in Aptian chanid fishes (Gonorynchiformes) from the Araripe Basin (Brazil): Autecology and paleoecological implications

Author(s)

Ribeiro, Alexandre Cunha ^[1] ; Jose Poyato-Ariza, Francisco ^{[2, 3]} ; Varejao, Filipe Giovanini ^[4] ; Bockmann, Flavio Alicino ^{[5, 6]}

Affiliation

^[1] Univ Fed Mato Grosso, Dept Biol & Zool, Av Fernando Correa da Costa 2367, BR-78060900 Cuiaba, Mato Grosso - Brazil

^[2] Univ Autonoma Madrid, Ctr Integrat Palaeobiol, E-28049 Madrid - Spain

^[3] Univ Autonoma Madrid, Unidad Paleontol, Dept Biol, E-28049 Madrid - Spain

^[4] Univ Fed Parana, Inst LAMIR, Dept Geol, Av Cel Francisco H dos Santos 100, BR-81531980 Curitiba, Parana - Brazil

^[5] Univ Sao Paulo, Dept Biol, Lab Ictiol Ribeirao Preto, FFCLRP, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP, Brazil.Ribeiro, Alexandre Cunha, Univ Fed Mato Grosso, Dept Biol & Zool, Av Fernando Correa da Costa 2367, BR-78060900 Cuiaba, Mato Grosso - Brazil

^[6] Univ Sao Paulo, Dept Biol, Lab Ictiol Ribeirao Preto, FFCLRP, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: CRETACEOUS RESEARCH; v. 112, AUG 2020.
• Web of Science Citations: 0

Abstract

Gonorynchiformes are a small, but morphologically diverse group of teleost fishes with an extensive fossil record. Most extant gonorynchiforms are efficient filter feeders, bearing long gill rakers and other morphological specializations, such as microbranchiospines and an epibranchial organ. The analyses of the gill arch of the Brazilian gonorynchiform fishes Dastilbe crandalli and Tharrias araripis from the Aptian of the Araripe Basin, Northeast Brazil, demonstrate significant morphological variation suggestive of distinct feeding habitats as well as ontogenetic dietary shifts in these closely related gonorynchiforms. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

• 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