Morphology, taxonomy, and phylogeny of Triassic pholidophorid fishes (Actinopterygii, Teleostei)

Arratia, Gloria

doi:10.1080/02724634.2013.835642

Cited by 104 publications

(203 citation statements)

References 56 publications

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“…Fishes studied herein have characters that place them within the clade Teleosteomorpha (Arratia, 2001). They share with other Teleosteomorpha the presence of a unique supramaxillary bone lying on the last dorsal third of the maxilla, two suborbital bones, a complex pectoral ray (for complex ray definition see Arratia, 2008, 88-91), two principal rays forming the dorsal and ventral margins of the caudal fin, and the main leading ray (the longest segmented-andbranched ray) corresponding to the second principal ray in the dorsal and ventral margins of the caudal fin, as well as in the dorsal and anal fins, besides other characters (Arratia, 2008(Arratia, , 2013Giordano, 2015).…”

Section: Methodsmentioning

confidence: 99%

“…These are restricted to most Teleostei from Leptolepis corhyphaenoides and all more derived ones (Schultze, 1966(Schultze, , 2015Meunier and Brito, 2004;Arratia and Schultze, 2007;Arratia, 2015). Ganoid scales of lepisosteoide type are present among most basal forms, for example, in members of the family Aspidorhynchidae (Schultze, 1966;Brito, 1997;Brito and Meunier, 2000), in the teleost family Pholidophoridae (Nybelin, 1966;Arratia, 2013Arratia, , 2015, in Catervariolus hornemani (Taverne, 2011), in species of Siemensichthys (Arratia, 2000), and in Dorsetichthys bechei (Nybelin, 1966;Arratia, 2013). Amioid-type scales are also present among teleosts, but only in species of Eurycormus (Schultze, 1966(Schultze, , 2015Arratia and Schultze, 2007;Schultze and Arratia, 2015).…”

Section: Comparison With Scales Of Other Teleosteomorpha and Other Nementioning

confidence: 99%

“…3). According to Arratia's (2013) phylogenetic hypothesis, the Aspidorhynchiformes, the Pachycormiformes, and the Middle Triassic fish Prohalecites porroi stand as stem teleosts. These taxa are more closely related to crown-group teleosts than to their closest extant relatives (e.g., Amia and Lepisosteus).…”

Section: Comparison With Scales Of Other Teleosteomorpha and Other Nementioning

confidence: 99%

“…However, such assignment was based on unreliable generalized characters found in many actinopterygians (Arratia, 2000(Arratia, , 2013, such as specimen size, the presence of bones covered by ganoine, and ganoid scales. These were the common traits for identifying "pholidophoriforms", a group now interpreted as non-monophyletic (Arratia, 2000(Arratia, , 2013. Our current studies suggest that the fishes from the La Cantera Formation are not "pholidophoriforms".…”

Section: Introductionmentioning

confidence: 99%

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Scale morphology and specialized dorsal scales of a new teleosteomorph fish from the Aptian of West Gondwana

2016

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Abstract. Scales of a new species of Teleosteomorpha from the continental Aptian of the south of South America are studied. These neopterygians are from the La Cantera Formation in central Argentina, and were previously identified as Pholidophoriformes. They present ganoid scales; most of them are rhombic with well-developed peg-and-socket articulations and possessing a smooth surface. They have a straight posterior margin, but occasionally, some scales of the flank have a sinuous posterior margin with one or two serrations. The shape of the scales varies along the body from large, rectangular and deeper than long scales behind the head to the preanal region to smaller and rhomboidal scales in the caudal region. There are a few horizontal rows along the flank and about 32 lateral line scales. Thick, round ganoid scales are present in the prepelvic region close to the ventral margin. The round and rhombic scales present growth lines, which form concentric ridges on the external side. A characteristic row of deep scales forms the dorsal margin on each side of the body; a row of median ridge scales is not present. This is a unique feature of the studied fishes. Scutes covered with unornamented ganoine precede the pelvic, dorsal, and anal fins, as well as the dorsal and ventral margins of the caudal fin. The posterior margin of the dorsal lobe of the caudal fin is formed by a single line of scales, which continues and covers the base of the first principal caudal ray. Histological studies reveal a lepisosteoid-scale type with multiple ganoine layers, lack of dentine, and the presence of canaliculi of Williamson. The macro-and micromorphology of the scales shows features that are found in other teleosteomorphs, but also in other neopterygians.

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Section: Methodsmentioning

confidence: 99%

Section: Comparison With Scales Of Other Teleosteomorpha and Other Nementioning

confidence: 99%

Section: Comparison With Scales Of Other Teleosteomorpha and Other Nementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Scale morphology and specialized dorsal scales of a new teleosteomorph fish from the Aptian of West Gondwana

2016

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“…Working from the literature, he stated that Aphnelepis should be in a family Aphnelepidae and Aetheolepis in a family Aetheolepidae. Arratia (2013) commented on this validation by Taverne, but also stated that none of the genera included have been revised since their original descriptions. Zaxilepis quinglongensis occurs in the freshwater Lower Jurassic deposits of Yunnan, southwest China (Su 1994).…”

Section: The Koonwarra Fossil Bedmentioning

confidence: 99%

Reappraisal of Mesozoic fishes and associated invertebrates and flora from Talbragar and Koonwarra, eastern Australia

Bean¹

2017

Proc. R. Soc. Vic.

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Eastern Australia has two major Mesozoic fossil localities. The Talbragar Fish Bed in central west New South Wales contains an assemblage of Upper Jurassic fishes, plants and insects. The Koonwarra Fossil Bed, in South Gippsland, Victoria, has an assemblage of Lower Cretaceous fishes, plants and insects. The geological settings of these localities are described. Each locality has a common genus of fish that was originally described as Leptolepis. The names of both these fish have been changed, the Talbragar one to Cavenderichthys talbragarensis and the Koonwarra one to Waldmanichthys koonwarri. Both of these fish have been placed into the Family Luisiellidae, together with a Patagonian fish, Luisiella feruglioi. Each locality also has a member of the family Archaeomenidae: Archaeomene tenuis from Talbragar and Wadeichthys oxyops from Koonwarra. The relationships of these and other fish have been discussed by various authors over the last 20 years and a summary of these comments is presented, as well as a brief comparison between the plants of both localities. The localities of Talbragar, Koonwarra and the Argentinian fishes during the Mesozoic appear to have similar palaeo-environmental settings, which may explain the similarities in the assemblages. The Australian localities contain well-preserved specimens which shed light on the diversity and extent of fishes in southern Gondwana, a region otherwise poorly represented in the fossil record.

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Evolution of caudal fin ray development and caudal fin hypural diastema complex in spotted gar, teleosts, and other neopterygian fishes

Desvignes

Carey

Postlethwait

2018

Developmental Dynamics

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These results suggest that the hypural diastema complex in teleosts and gars represents a homoplasy among neopterygians and that it emerged repeatedly by parallel evolution due to shared inherited underlying genetic and developmental programs (latent homology). Because the hypural diastema complex exists in gars with heterocercal tails, this complex is independent of homocercality. Developmental Dynamics 247:832-853, 2018. © 2018 Wiley Periodicals, Inc.

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Morphology, taxonomy, and phylogeny of Triassic pholidophorid fishes (Actinopterygii, Teleostei)

Cited by 104 publications

References 56 publications

Scale morphology and specialized dorsal scales of a new teleosteomorph fish from the Aptian of West Gondwana

Scale morphology and specialized dorsal scales of a new teleosteomorph fish from the Aptian of West Gondwana

Reappraisal of Mesozoic fishes and associated invertebrates and flora from Talbragar and Koonwarra, eastern Australia

Evolution of caudal fin ray development and caudal fin hypural diastema complex in spotted gar, teleosts, and other neopterygian fishes

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