Anatomic atlas of Polypteriformes: a comparative analysis of basal gnathostomates

• Grant number: 14/10849-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: August 01, 2014
• End date: January 31, 2019
• Field of knowledge: Biological Sciences - Zoology - Morphology of Recent Groups
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Flávio Alicino Bockmann
• Grantee: Pedro Pereira Rizzato
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated scholarship(s): 16/06677-0 - Ontogeny and homology of dermal bones of the skull associated with laterosensory canals in basal actinopterygians (Vertebrata: Osteognathostomata), BE.EP.DR

Abstract

Polypteriformes is one of the basalmost bony fish orders, including up to date 12 valid species on the genera Polypterus and Erpetoichthys. The group is morphologically very singular, combining both exclusive features, not seen in other extant bony fishes, and features shared by different basal lineages of Gnathostomata. As result, Polypteriformes have been subjected to several morphological studies throughout the years which, however, demand reviews in light of new interpretations about the homology of certain structures and about the phylogeny of Osteognathostomata, of new nomenclatural proposals, and of the new techniques of morphological investigation developed in recent years. Therefore, the present project have as it main objectives: (1) to study and describe at length the anatomy of Polypteriformes representatives, focusing on skeleton, musculature and innervations, providing comparisons of this data to those of other basal Gnathostomates (including fossils); (2) to elaborate an anatomic atlas of reference for the order, propounding an actualized nomenclature usage that attends to structural homology hypothesis for the structures; (3) to identify and elect both autapomorphies for the group and characters with phylogenetic signal to suggest hypothesis of relationship of the Polypteriformes members within each and with other Gnathostomata; and (4) to review and discuss critically the hypothesis of phylogenetic placement of Polypteriformes among other Osteognathostomata, in light of the new evidences identified in the work. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DATOVO, ALESSIO; RIZZATO, PEDRO P.. Evolution of the facial musculature in basal ray-finned fishes. Frontiers in Zoology, v. 15, OCT 25 2018. (16/19075-9, 14/10849-6, 16/06677-0)

RIZZATO, PEDRO P.; POSPISILOVA, ANNA; HILTON, ERIC J.; BOCKMANN, FLAVIO A.. Ontogeny and homology of cranial bones associated with lateral-line canals of the Senegal Bichir, Polypterus senegalus (Actinopterygii: Cladistii: Polypteriformes), with a discussion on the formation of lateral-line canal bones in fishes. Journal of Anatomy, v. 237, n. 3, APR 2020. (14/10849-6, 16/06677-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

RIZZATO, Pedro Pereira. A review of the anatomy of Polypteridae (Vertebrata: Cladistii).. 2019. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (PCARP/BC) Ribeirão Preto.