Results 51 to 60 of about 43,136 (296)

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato   +4 more
wiley   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.30 [PDF]

open access: yes, 2006
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core  

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.24 [PDF]

open access: yes, 2000
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core   +1 more source

Rock glaciers in the Suntar‑Khayata Range

open access: yesЛëд и снег, 2016
The remote map‑making technique and results of field investigations made possible for the first time to reveal a great number of rock glaciers within the area of the Suntar‑Khayata Range (North‑East Asia). A total of 540 formations were identified. Among
V. M. Lytkin, A. A. Galanin
doaj   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.25 [PDF]

open access: yes, 2001
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core  

From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra   +7 more
wiley   +1 more source

Frozen Ground - The News Bulletin of the International Permafrost Association, No.11 [PDF]

open access: yes, 1992
Frozen Ground - The News Bulletin of the International Permafrost Association, No ...
International Permafrost Association, IPA
core  

Hot and cold deserts as eco‐evolutionary arenas for understanding plant resistance to multiple abiotic stressors

open access: yesBiological Reviews, EarlyView.
ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler   +6 more
wiley   +1 more source

Onshore Thermokarst Primes Subsea Permafrost Degradation

open access: yesGeophysical Research Letters, 2021
The response of permafrost to marine submergence can vary between ice‐rich late Pleistocene deposits and the thermokarst basins that thawed out during the Holocene. We hypothesize that inundated Alases offshore thaw faster than submerged Yedoma.
Michael Angelopoulos   +11 more
doaj   +1 more source

Home - About - Disclaimer - Privacy