Results 31 to 40 of about 394 (183)

First report of silicified wood from a late Pennsylvanian intramontane basin in the Pyrenees: systematic affinities and palaeoecological implications

open access: yesPapers in Palaeontology, Volume 9, Issue 5, September/October 2023., 2023
Abstract The first anatomically preserved wood specimens of an upland Carboniferous flora from the Iberian Peninsula are reported from the Erillcastell Basin (Eastern Pyrenees, Catalonia, Spain). Two taxa are described, a calamitacean Equisetales (Arthropitys sp.) and a Cordaitales (Dadoxylon sp.).
Aixa Tosal   +4 more
wiley   +1 more source

Taxonomy and nomenclature of Sphenopteris and allied fossil‐genera of Carboniferous seed‐plant fronds

open access: yesTAXON, Volume 72, Issue 4, Page 862-879, August 2023., 2023
Abstract Most remains of Carboniferous lyginopteridalean seed‐plant fronds used to be classified in a single fossil‐genus (Sphenopteris) based mainly on pinnule morphology. By incorporating additional characters linked to frond architecture and rachial features a more natural taxonomy has now been achieved.
Christopher J. Cleal, Barry A. Thomas
wiley   +1 more source

Decoding the drivers of deep‐time wetland biodiversity: insights from an early Permian tropical lake ecosystem

open access: yesPalaeontology, Volume 66, Issue 3, May/June 2023., 2023
Abstract Wetlands are important to continental evolution, providing both arenas and refugia for emerging and declining biotas. This significance and the high preservation potential make the resulting fossiliferous deposits essential for our understanding of past and future biodiversity.
Steffen Trümper   +8 more
wiley   +1 more source

First Iberian aspidothoracid megasecopteran insect and associated plants evidencing herbivory in a tropical Carboniferous forest from León, Spain [PDF]

open access: yesActa Palaeontologica Polonica
We describe Aspidothorax hispanicus sp. nov. from Gzhelian, Pennsylvanian strata of León, Spain, representing the first occurrence of Aspidothoracidae in the Iberian Peninsula.
ARTAI A. SANTOS   +4 more
doaj   +1 more source

The Early History of Giant Cockroaches: Gyroblattids and Necymylacrids (Blattodea) of the Late Carboniferous

open access: yesDiversity, 2023
Large-winged blattoids of the Middle to Late Pennsylvanian reveal a striking appearance, diversification, and decline in the fossil record. Among them, the families Necymylacridae Durden, 1969, and Gyroblattidae Durden, 1969, as well as the mylacrid ...
Joerg W. Schneider, Ronny Rößler
doaj   +1 more source

Paleopteran molecular clock: Time drift and recent acceleration. [PDF]

open access: yesEcol Evol
Constant evolution rates, which form the foundation of the strict molecular clock model, do not apply in the case of Paleoptera, highlighting a notable bias in the molecular clock hypothesis. The current biodiversity may be the outcome of a relatively recent, exponential increase in base substitution rates.
Osozawa S, Nel A.
europepmc   +2 more sources

Callibrachion and Datheosaurus, two historical and previously mistaken basal caseasaurian synapsids from Europe [PDF]

open access: yesActa Palaeontologica Polonica, 2016
This study represents a re-investigation of two historical fossil discoveries, Callibrachion gaudryi (Artinskian of France) and Datheosaurus macrourus (Gzhelian of Poland), that were originally classified as haptodontine-grade sphenacodontians and have ...
Frederik Spindler   +2 more
doaj   +1 more source

A FOSSIL WHIP-SCORPION (ARACHNIDA: THELYPHONIDA) FROM THE UPPER CARBONIFEROUS OF THE CARNIC ALPS (FRIULI, NE ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2016
A new and well-preserved fossil whip scorpion (Arachnida: Uropygi: Thelyphonida) is described from the Late Carboniferous of the Carnic Alps, Friuli, Italy. It is referred to Parageralinura marsiglioi n. sp.
PAUL A. SELDEN   +2 more
doaj   +1 more source

CARBONIFEROUS PLANT FOSSILS FROM THE SAN LORENZO SCHISTS (PISANI MOUNTAINS, TUSCANY, ITALY): A PRELIMINARY STUDY OF THE PALAEOBOTANICAL COLLECTION OF THE MUSEO NATURALISTICO ARCHEOLOGICO DELL’APPENNINO PISTOIESE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2021
The Museo Naturalistico Archeologico dell’Appennino Pistoiese (MUNAP) hosts one of the most abundant and diverse collections of Late Palaeozoic plant fossils from the San Lorenzo Schists of the Pisani Mountains.
FRANCESCO SABATINI   +2 more
doaj   +1 more source

Leafy branches of Gangamopteris from the Gzhelian–Asselian of westernmost Gondwana

open access: yesComptes Rendus Palevol, 2019
Fil: Fernandez, Johana Antonella. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Geologia; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Fernández, Johana Antonella   +1 more
openaire   +2 more sources

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