G. Arratia

Publications90
h-index30
Citations3,889
Highly Influential Citations351
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The Tree of Life and a New Classification of Bony Fishes
TLDR
A comprehensive molecular phylogeny for bony fishes that includes representatives of all major lineages and the order Perciformes, considered by many a polyphyletic taxonomic waste basket, is defined for the first time as a monophyletic group in the global phylogeny.
Basal teleosts and teleostean phylogeny
Phylogenetic classification of bony fishes
TLDR
This version of the phylogenetic classification of bony fishes is substantially improved, providing resolution for more taxa than previous versions, based on more densely sampled phylogenetic trees.
Morphology, Taxonomy, and Phylogeny of Triassic Pholidophorid Fishes (Actinopterygii, Teleostei)
TLDR
This study presents the first comprehensive revision of ‘pholidophoriform’ fishes, which are a key taxon for understanding the early diversification of teleost fish, and proposes a new hypothesis for character evolution within basal Teleostei.
Vertebral column and associated elements in dipnoans and comparison with other fishes: Development and homology
TLDR
The formation of centra, which is not homologous among vertebrate groups, is acquired independently in some lineages of placoderms, most advanced actinopterygians, and some dipnoans and rhipidistians.
Multi-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution
TLDR
Establishing a new phylogenetic pattern with accurate divergence dates for bony fishes illustrates several areas where the fossil record is incomplete and provides critical new insights on diversification of this important vertebrate group.
Identifying patterns of diversity of the actinopterygian fulcra
TLDR
Revised definitions of fin rays, scutes or ridge scales, and fulcra have been traditionally interpreted as modified scales, but their diversity has been almost ignored and their phylogenetic implications remain to be investigated.
Palatoquadrate and its ossifications: Development and homology within osteichthyans
TLDR
From the single‐unit pattern, separate autopalatine, metapterygoid, and quadrate evolve in parallel in the three teleostomian subgroups, therefore, it is necessary to distinguish between actinopterygian and actinistian autopal atines and among acanthodian, actinipterygian, and act inistian metapterygoidea and quadrates.
Development and diversity of the suspensorium of trichomycterids and comparison with loricarioids (Teleostei: Siluriformes)
  • G. Arratia
  • Biology
    Journal of morphology
  • 1 August 1990
TLDR
Despite topological relationships, the origin and development of bones reveal the presence of a chondral hyomandibula which develops a large meinbranous outgrowth during ontogeny and achondral metapterygoid in trichomycterids.
Jaws and teeth of american cichlids (Pisces: Labroidei)
TLDR
The morphology of the upper, lower, and pharyngeal jaws is very similar among American cichlids; usually, several types exist on a single tooth plate, but the combination of tooth types differs among some genera.
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