Results 111 to 120 of about 1,147 (200)

Cambro-Ordovician microorganisms: acritarchs and endoliths

, 2005
Organic-walled microfossils are abundant and taxonomically diverse in Cambrian-Ordovician strata; some are important for biostratigraphy and for the correlation of geological successions. New assemblages of Cambrian-Ordovician acritarchs from Kolguev Island, Arctic Russia and Middle Cambrian ichnofossils of endoliths from Peary Land, North Greenland ...
openaire   +1 more source

Evolutionary escalation in an exceptionally preserved Cambrian biota from the Grand Canyon (Arizona, USA). [PDF]

Sci Adv
Mussini G, Hagadorn JW, Miller AE, Karlstrom KE, Evans R, Dehler CM, Bastien S, Butterfield NJ.   +7 more
europepmc   +1 more source

Marine and non-marine strata preserving Ediacaran microfossils. [PDF]

Sci Rep, 2019
Lehn I, Horodyski RS, Paim PSG.
europepmc   +1 more source

Proterozoic acritarchs and divergences of green microalgae

, 2010
The morphology of microfossils with resistant cell walls, their ornamentation and functionally identifiable structures are the first source of information used to assess their biological affinities. Difficulties in relying on morphology alone due to the problem of convergent morphology may be resolved by the ultrastructure of the cell wall and its ...
openaire   +1 more source

Environmental phylogenetics supports a steady diversification of crown eukaryotes starting from the mid-Proterozoic. [PDF]

Proc Natl Acad Sci U S A
Sandin MM, Cohen PA, Morlon H, Burki F.
europepmc   +1 more source

Lethal microbial blooms delayed freshwater ecosystem recovery following the end-Permian extinction. [PDF]

Nat Commun, 2021
Mays C, McLoughlin S, Frank TD, Fielding CR, Slater SM, Vajda V.   +5 more
europepmc   +1 more source

Causes and consequences of end-Ediacaran extinction: An update. [PDF]

Camb Prism Extinct, 2023
Darroch SAF, Smith EF, Nelson LL, Craffey M, Schiffbauer JD, Laflamme M.   +5 more
europepmc   +1 more source

The hard steps model and whole Earth-system transitions. [PDF]

Philos Trans R Soc Lond B Biol Sci
Watson A.
europepmc   +1 more source

Age and paleo-environmental evolution of the Douala Basin (Cameroon) during the Cenozoic: insights from palynology and sequence analysis. [PDF]

Heliyon, 2021
Mfayakouo BC, Ngaha PRN, Bitom DL.
europepmc   +1 more source

Dinoflagellate and Acritarch biostratigraphy of the Middle Eocene rocks of a part of South-Western Kachchh, India

Journal of the Palaeontological Society of India, 1981
K. P. Jain, K. K. Tandon
doaj   +1 more source