Spermiogenesis and spermatozoa ultrastructure in the Serrasalminae (Ostariophysi: Characiformes) with further evidence on the relationships of the piranhas and pacus [PDF]
Neotropical Ichthyology, 2009 Spermatozoa and spermiogenesis ultrastructure were studied in the serrasalmine species Piaractus mesopotamicus, Mylossoma duriventre, Serrasalmus maculatus, and Metynnis mola and two distinct patterns may be recognized: the first common to Mylossoma ...
Priscila Gusmão-Pompiani +3 more
doaj +7 more sources
Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling. [PDF]
BMC Evol Biol, 2011 Background: With nearly 1,100 species, the fish family Characidae represents more than half of the species of Characiformes, and is a key component of Neotropical freshwater ecosystems.
Oliveira C +7 more
europepmc +5 more sources
Redescription of Leporinus jamesi (Characiformes: Anostomidae), a poorly known species of Leporinus from the lowlands of the central Amazon, Brazil [PDF]
Neotropical IchthyologyThe poorly known Leporinus jamesiis redescribed. The species was originally described based on a single specimen collected in the rio Solimões at Manacapuru, in the central Amazon, Brazil.
Júlio C. Garavello +2 more
doaj +2 more sources
Zootaxa, 2008 The ultrastructure and histology of teeth of members of the order Characiformes, in conjunction with the examination of cleared and stained sections and teeth, revealed characters pertinent to understanding the relationships among the Anostomoidea (Curimatidae, Prochilodontidae, Anostomidae, and Chilodontidae), Hemiodontidae, and Parodontidae.
ALEXANDRE SCHARCANSKY +1 more
core +3 more sources
Cladistics, 2015 AbstractAlthough 11 studies have addressed the systematics of the four families and 281 fish species of the ecomorphologically diverse Anostomoidea, none has proposed a global hypothesis of relationships. We synthesized these studies to yield a supermatrix with 463 morphological characters among 174 ingroup species, and inferred phylogeny with ...
Dillman, Casey B. +2 more
openaire +4 more sources
Neotropical Ichthyology, 2023 A new small-sized species of Leporinus is described from rio Braço Norte, a tributary of rio Teles Pires, in the Tapajós drainage in the Brazilian Amazon, and its phylogenetic position is proposed based on molecular data.
Ian Solon Bortoloci Ito +3 more
doaj +1 more source
A historical vertebrate collection from the Middle Miocene of the Peruvian Amazon [PDF]
, 2021 The Miocene aquatic and terrestrial fossil record from western Amazonia constitute a clear evidence of the palaeoenvironmental diversity that prevailed in the area, prior to the establishment of the Amazon River drainage.
Adnet, Sylvain +7 more
core +1 more source
A Target Enrichment Bait Set for Studying Relationships among Ostariophysan Fishes [PDF]
, 2020 © 2020 by the American Society of Ichthyologists and Herpetologists. Target enrichment of conserved nuclear loci has helped reconstruct evolutionary relationships among a wide variety of species.
Albert, James S. +11 more
core +2 more sources
Papéis Avulsos de Zoologia, 2012 Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens.
Heraldo A. Britski +2 more
doaj +1 more source
Phylogenetic incongruence and homoplasy in the appendages and bodies of arthropods::Why broad character sampling is best [PDF]
, 2019 Notwithstanding the rapidly increasing sampling density of molecular sequence data, morphological characters still make an important contribution to our understanding of the evolutionary relationships of arthropod groups.
Brinkworth, Andrew +2 more
core +1 more source