Results 1 to 10 of about 35 (20)

The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications. [PDF]

open access: yesPLoS ONE, 2023
Material of the antiarch placoderm Bothriolepis from the middle Givetian of the Valentia Slate Formation in Iveragh Peninsula, Ireland, is described and attributed to a new species, B. dairbhrensis sp. nov.
Vincent Dupret   +9 more
doaj   +8 more sources

Redescription of Phymolepis  cuifengshanensis (Antiarcha: Yunnanolepididae) using high-resolution computed tomography and new insights into anatomical details of the endocranium in antiarchs [PDF]

open access: yesPeerJ, 2018
Background Yunnanolepidoids constitute either the most basal consecutive segments or the most primitive clade of antiarchs, a highly diversified jawed vertebrate group from the Silurian and Early Devonian periods.
Yajing Wang, Min Zhu
doaj   +8 more sources

Correction: The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications [PDF]

open access: yesPLoS ONE
[This corrects the article DOI: 10.1371/journal.pone.0280208.].
Vincent Dupret   +9 more
doaj   +5 more sources

Squamation and scale morphology at the root of jawed vertebrates [PDF]

open access: yeseLife, 2022
Placoderms, as the earliest branching jawed vertebrates, are crucial to understanding how the characters of crown gnathostomes comprising Chondrichthyes and Osteichthyes evolved from their stem relatives.
Yajing Wang, Min Zhu
doaj   +2 more sources

Morphology and phylogeny of Bothriolepis yunnanensis (Placodermi, Antiarcha) from the Middle Devonian of China [PDF]

open access: yesSwiss Journal of Palaeontology
Bothriolepis yunnanensis Liu, 1962, was first described based on an anterior median dorsal plate (assigned here as the lectotype) and a posterior median dorsal plate (assigned here as the paralectotype) from the Shangshuanghe Formation (Eifelian ...
Yuehui Yan   +4 more
doaj   +6 more sources

A new tubalepid fish (Antiarcha, Placodermi) from the Middle Devonian of Huize, Yunnan, China

open access: yesSwiss Journal of Palaeontology
A new genus and species of tubalepid antiarch, Tongdulepis concavus gen. et sp. nov., is described from the Middle Devonian (Qujing Formation, late Eifelian) in Huize County, Qujing, northeastern Yunnan, China.
Yanchao Luo, Zhaohui Pan, Min Zhu
doaj   +3 more sources

A novel specimen-based mid-Paleozoic dataset of antiarch placoderms (the most basal jawed vertebrates) [PDF]

open access: yesEarth System Science Data, 2023
Antiarcha data are essential to quantitative studies of basal jawed vertebrates. The absence of structured data on key groups of early vertebrates, such as Antiarcha, has lagged in understanding their diversity and distribution patterns.
Z. Pan   +5 more
doaj   +1 more source

A new tubalepid (Antiarcha, Placodermi) from the Middle Devonian of Huize, Yunnan, China

open access: yes
Abstract A new tubalepid antiarch, Tongdulepis concavus gen. et sp. nov., is described from the Middle Devonian (Qujing Formation, late Eifelian) of Huize County, Qujing, northeastern Yunnan, China. It differs from other antiarchs in the trapezoidal premedian plate, absence of postmarginal plate (except Tubalepis), spade-shaped preorbital ...
Yanchao Luo, Zhaohui Pan, Min Zhu
openaire   +1 more source

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