Actinopterygians of the Stephanian sediments of the Krkonoše Piedmont Basin (Bohemian Massif) and their palaeobiogeographic relationship

Štamberg, Stanislav

doi:10.3140/bull.geosci.1582

Cited by 12 publications

(13 citation statements)

References 10 publications

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“…The scales length reaches 1.3-1.5 mm and 1.0 mm in width. Similar shaped and described scales were obtained in Elonichthydae family based on its features of the microstructure on the outer surface from the Black Shale Horizon of the Syřenov Formation in Czech Republic [62].…”

Section: Descriptionsupporting

confidence: 67%

“…Similar smooth, straight, long teeth with microtubercles were identified as Elonichthys sp. from Krkonoše Piedmont Basin of the Stephanian in Czech Republic [62]. Also, the same assemblage with less variety was obtained from Naujoji Akmenė Formation, late Permian in Lithuania [25].…”

Section: Remarksmentioning

confidence: 84%

“…Most of the scales belong to the Palaeonisciformes order based on a comparison with Palaeoniscoid scales [63], Palaeonisciformes-related material [62] and its description [64]. Less variable, similar actinopterygian scales assemblage was found in Karpėnai quarry, northern Lithuania [25].…”

Section: Remarksmentioning

confidence: 99%

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A late Permian ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region

Dankina-Beyer

Spiridonov

Stinkulis

et al. 2019

Preprint

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Section: Descriptionsupporting

confidence: 67%

Section: Remarksmentioning

confidence: 84%

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A late Permian ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region

Dankina-Beyer

Spiridonov

Stinkulis

et al. 2019

Preprint

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“…New Palaeozoic actinopterygian taxa continue to emerge from well-sampled regions such as Europe (e.g. Štamberg, 2016;Bakaev and Kogan, 2020;Newman et al, 2021) and North America (e.g. Mickle, , 2018Wilson, Pardo and Anderson, 2018).…”

Section: Materials and Methods (1) Species Naming And Publication Datamentioning

confidence: 99%

“…6). Work remedying this is already underway using techniques such as CT-scanning (Giles et al, 2015;Pradel et al, 2016;Coates & Tietjen, 2018;Friedman et al, 2018;Figueroa et al, , 2021 and more traditional descriptive work (Choo, 2015;Štamberg, 2016;Mickle, , 2018Stack et al, 2020). In particular, CT-scanning will be critical in revealing internal anatomical details and increasing the number of phylogenetically informative characters beyond the dermal bones, which are often very similar among Palaeozoic actinopterygians .…”

Section: ) Phylogenetic Issuesmentioning

confidence: 99%

The early diversification of ray-finned fishes (Actinopterygii): hypotheses, challenges and future prospects

Henderson¹,

Dunne²,

Fasey³

et al. 2022

Preprint

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Actinopterygii are the most speciose living vertebrate clade, and study of fossil members during their Palaeozoic rise to dominance has a long history of descriptive work. Although research interest into Palaeozoic actinopterygians has increased in recent years, broader patterns of diversity and diversity dynamics remain critically understudied. Past studies have investigated macroevolutionary trends in Palaeozoic actinopterygians in a piecemeal fashion, variably using existing compendia of vertebrates or literature-based searches, and there is no comprehensive occurrence-based dataset of actinopterygians spanning the whole of the Palaeozoic. Past studies typically show low levels of diversity in the Devonian with a substantial rise in the early Carboniferous in the aftermath of the end-Devonian mass extinction. However there are unresolved patterns reported for the later Carboniferous and Permian. In large part, these conflicts span from a lack of publicly-available occurrence data: actinopterygians are majorly underrepresented in the Paleobiology Database (PBDB), for example, obscuring patterns of diversity through time. This is exacerbated by major taxonomic problems pervading the Palaeozoic actinopterygian record. Innumerable taxa are lumped into wide-ranging families and poorly-formulated genera, with a vast number of described species concentrated in several particularly problematic ‘waste-basket’ genera. This taxonomic confusion feeds into a limited understanding of phylogenetic relationships. There is also a heavy sampling bias towards Europe and North America, with other regions underrepresented despite yielding important occurrences. Scrutiny of the extent to which spatial biases influence the record is lacking, as is research on other forms of bias. Low richness in some time periods may be linked to geological biases, while the effect of taphonomic biases on Palaeozoic actinopterygians have not yet been investigated. Efforts are already underway to both redescribe poorly defined taxa and describe taxa from underrepresented regions, helping address taxonomic issues and accuracy of occurrence data. New methods of sampling standardisation utilising up-to-date occurrence databases will be critical in teasing apart biological changes in diversity from those resulting from bias. Lastly, continued phylogenetic work will enable the use of phylogenetic comparative methods to elucidate the origins of actinopterygian biogeography and subsequent patterns of radiation throughout their rise to dominate aquatic faunas.

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The dental system of †Kazanichthys viatkensis (Actinopterygii, Acrolepididae) from the middle Permian of European Russia: palaeobiological and palaeoecological inferences

Bakaev

Johanson

LeBlanc

2023

Papers in Palaeontology

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Among ray‐finned fishes (Actinopterygii), the crushing, durophagous feeding strategy first evolved in the early Carboniferous period, with the †Eurynotiformes possessing dentitions with single layers of partially to fully fused blunt teeth. In the †‘Platysomidae’ (Permian), a new form of crushing dentition evolved (phyllodonty), in which multiple layers of superimposed crushing teeth developed intraosseously, within the jaw. The phyllodont durophagous dentition is also recovered from later‐occurring taxa originating mainly in the Mesozoic, such as the †Bobastraniiformes, the neopterygians †Pycnodontiformes and Ginglymodi, and in the teleost group †Phyllodonta. By comparison, †Kazanichthys viatkensis, an actinopterygian from the middle Permian of European Russia, is characterized by a third, putatively durophagous dentition, with anterior conical teeth and closely packed molariform teeth on the buccal dental plates (a potential similarity with eurynotiforms). Whereas the conical teeth are similar to those of basal actinopterygians, the molariform teeth superficially resemble teeth of some teleosts (Characiformes, Tetraodontiformes), but are unique among known fossil and living Actinopterygii in being crowned by anastomosing, sharp apical ridges. Teeth are ankylosed to the jaw and acrodont in implantation. There is neither evidence of plicidentine, nor cavities corresponding to intraosseous crypts. Most replacement teeth formed extraosseously, differing from the phyllodont dentition, but similar to several more phylogenetically basal actinopterygians. The dental system morphologically resembles recent Sparidae (Teleostei; Perciformes), possibly indicating a similar trophic adaptation. Based on these comparisons and patterns of wear, we propose that †K. viatkensis was a generalist durophagous feeder, with the ability to switch prey types with its unique and complex dentition.

show abstract

Actinopterygians of the Stephanian sediments of the Krkonoše Piedmont Basin (Bohemian Massif) and their palaeobiogeographic relationship

Cited by 12 publications

References 10 publications

A late Permian ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region

A late Permian ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region

The early diversification of ray-finned fishes (Actinopterygii): hypotheses, challenges and future prospects

The dental system of †Kazanichthys viatkensis (Actinopterygii, Acrolepididae) from the middle Permian of European Russia: palaeobiological and palaeoecological inferences

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