Results 61 to 70 of about 1,358 (181)

Acritarch-like Microorganisms from the 1.9 Ga Gunflint Chert, Canada. [PDF]

Astrobiology, 2022
González-Flores AL, Jin J, Osinski GR, Tsujita CJ.   +3 more
europepmc   +1 more source

Morphology and wall ultrastructure of leiosphaeric and acanthomorphic acritarchs from the Ediacaran of Australia

, 2009
Acritarchs are a group of organic-walled microfossils with unknown biological affinities. The wall ultrastructure of the unornamented, smooth Leiosphaeridia sp.
S. WILLMAN, Willman, Sebastian, Willman, Sebastian,   +2 more
core   +1 more source

Molecular characterisation of acritarchs : applying infrared spectroscopy to better infer biological affinities with other organic-walled microfossils

, 2023
Acritarchs are an informal, polyphyletic, and morphologically heterogenous group of organic- walled microfossils of unknown biological affinity. Some acritarchs share morphological similarities with certain microplankton resting stages (from e.g ...
François, Hanne, Sangiorgi, Francesca, Mertens, Kenneth Neil, Śliwińska, Kasia K., Vrielinck, Henk, Correia, Vânia, Meyvisch, Pjotr, Louwye, Stephen, Servais, Thomas, Steemans, Philippe, Gurdebeke, Pieter   +10 more
core  

Darriwilian acritarchs and conodonts from the Källa Limestone, Öland, Sweden

, 2013
The abandoned quarry south-west of Källa church on Northern Öland is the type locality of the Källa Limestone. The quarry provides access to a section of about one meter which has been collected for acritarchs and conodonts.
Frisenda S., Stouge S., BAGNOLI, GABRIELLA, Ribecai C.   +3 more
core  

Life cycle of early Cambrian microalgae from the Skiagia-plexus acritarchs

, 2010
Light microscopy studies on new materials and museum collections of early Cambrian organic-walled microfossils, informally called acritarchs, provide the observations on phenetic features that permit a comparison to certain Modern microalgae and the ...
Moczydlowska-Vidal, Malgorzata,, Moczydlowska-Vidal, Malgorzata   +1 more
core   +1 more source

Truncated bimodal latitudinal diversity gradient in early Paleozoic phytoplankton. [PDF]

Sci Adv, 2021
Zacaï A, Monnet C, Pohl A, Beaugrand G, Mullins G, Kroeck DM, Servais T.   +6 more
europepmc   +1 more source

Abnormal forms of acritarchs (phytoplankton) in the upper Hirnantian (Upper Ordovician) of Anticosti Island, Canada

, 2012
A detailed study of Late Ordovician-early Silurian acritarchs (Palaeozoic phytoplankton) from Anticosti Island (Quebec, Canada) revealed an unusually high abundance of abnormal forms from the upper Hirnantian carbonate strata (uppermost Ordovician) of ...
VECOLI, MARCO, Servais T, Munnecke A, Vandenbroucke TRA, Delabroye A   +4 more
core   +1 more source

An enigmatic microorganism from the Upper Pennsylvanian Grand-Croix cherts (Saint-Etienne Basin, France) [PDF]

, 2009
Krings, Michael, Galtier, Jean, Taylor, Thomas N.   +2 more
core   +1 more source

Sedimentological and palynostratigraphical modeling of sediments penetrated by KW field wells, onshore western Niger Delta Basin, Nigeria. [PDF]

Heliyon, 2023
Ocheli A, Ogbe OB, Aigbadon GO.
europepmc   +1 more source

The Lower Palaeozoic acritarchs Priscogalea and Cymatiogalea

, 1974
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source