Results 31 to 40 of about 617 (180)

A new Lower Devonian arthrodire (Placodermi) from the NW Siberian Platform [PDF]

open access: yesEstonian Journal of Earth Sciences, 2013
A new genus and species of arthrodires, Eukaia elongata (Actinolepidoidei, Placodermi), is described from the Lower Devonian, ?Pragian of the Turukhansk region, NW Siberian Platform.
Elga Mark-Kurik
doaj   +1 more source

A new look at the Emsian (Early Devonian), sarcopterygian fishes from the Holy Cross Mountains, Poland, with a special reference to porolepiforms

open access: yesActa Palaeontologica Polonica, 2023
Sarcopterygian remains are relatively common in the so-called “Placoderm Sandstone” (storm-origin bone-bearing breccia) from the Emsian (Lower Devonian) of Podłazie in the Holy Cross Mountains (Poland).
OLGA WILK
doaj   +1 more source

Placoderm muscles and chordate interrelationships [PDF]

open access: yesBiology Letters, 2007
[Trinajstic et al. (2007)][1] reported exceptionally preserved soft tissues in two placoderm fish from the Devonian of Australia. This exciting finding presents fresh morphological data with a bearing on an old phylogenetic problem: deep branching structure within the vertebrate tree.
Friedman, M, Brazeau, M, Brazeau, M
openaire   +3 more sources

A new Early Devonian antiarch placoderm from Belarus, and the phylogeny of Asterolepidoidei [PDF]

open access: yesActa Palaeontologica Polonica, 2023
A new asterolepidoid antiarch, Sherbonaspis talimaae sp. nov., is described based on the disarticulated skeletal elements from several boreholes in Belarus, from the Lepel Beds of the Vitebsk Formation, which has been assigned to an Early Devonian, late ...
Dmitry P. Plax, Ervins Lukševičs
doaj   +1 more source

A new assessment of the Late Devonian antiarchan fish Bothriolepis leptocheira from South Timan (Russia) and the biotic crisis near the Frasnian–Famennian boundary [PDF]

open access: yesActa Palaeontologica Polonica, 2017
The species of the Late Devonian, earliest Famennian placoderm fish Bothriolepis jeremejevi has been downranked to subspecies Bothriolepis leptocheira jeremejevi comb. nov.
Ervīns Lukševičs   +2 more
doaj   +1 more source

Electroporation‐based delivery of proteins in Penium margaritaceum and other zygnematophycean algae

open access: yesPhysiologia Plantarum, Volume 175, Issue 6, November/December 2023., 2023
Abstract Zygnematophycean algae represent the streptophyte group identified as the closest sister clade to land plants. Their phylogenetic position and growing genomic resources make these freshwater algae attractive models for evolutionary studies in the context of plant terrestrialization.
Vanessa Polet Carrillo‐Carrasco   +2 more
wiley   +1 more source

Bioclastic bottom‐current deposits of a Devonian contourite terrace: Facies variability and depositional architecture (Tafilalt Platform, Morocco)

open access: yesSedimentology, Volume 70, Issue 5, Page 1413-1471, August 2023., 2023
ABSTRACT The study examines bioclastic carbonate contourites that arise from the broad spectrum of bottom‐current related sedimentary processes ranging from deposition to erosion. The result of the intermittent accumulation of sediment are thin and condensed successions with abundant hiatuses.
Heiko Hüneke   +9 more
wiley   +1 more source

A large Late Devonian arthrodire (Vertebrata, Placodermi) from Poland [PDF]

open access: yesEstonian Journal of Earth Sciences, 2018
The arthrodire placoderm, Dunkleosteus sp., is reported from the Upper Devonian (Frasnian) of the Holy Cross Mountains, Poland. The material comprises partially preserved remains of two individuals found in the Kellwasser-like horizon of the Płucki ...
Piotr Szrek, Olga Wilk
doaj   +1 more source

Supplementary Table and Figures from A well-preserved ‘placoderm’ (stem-group Gnathostomata) upper jaw from the Early Devonian of Mongolia clarifies jaw evolution

open access: yes, 2023
Supplementary Table and Figures for A well-preserved ‘placoderm’ (Stem-group Gnathostomata) upper jaw from the Early Devonian of Mongolia clarifies jaw ...
Robert S. Sansom (14562447)   +7 more
core   +1 more source

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