Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Kirk R. Johnson"'
Autor:
Peter Wilf, Scott L. Wing, Herbert W. Meyer, Jacob A. Rose, Rohit Saha, Thomas Serre, N.Rubén Cúneo, Michael P. Donovan, Diane M. Erwin, Maria A. Gandolfo, Erika Gonzalez-Akre, Fabiany Herrera, Shusheng Hu, Ari Iglesias, Kirk R. Johnson, Talia S. Karim, Xiaoyu Zou
Publikováno v:
PhytoKeys, Vol 187, Iss , Pp 93-128 (2021)
Leaves are the most abundant and visible plant organ, both in the modern world and the fossil record. Identifying foliage to the correct plant family based on leaf architecture is a fundamental botanical skill that is also critical for isolated fossi
Externí odkaz:
https://doaj.org/article/0fb4df8833a14610a3b1938dd1027ad1
Autor:
Matthew J. Butrim, Dana L. Royer, Ian M. Miller, Marieke Dechesne, Nicole Neu-Yagle, Tyler R. Lyson, Kirk R. Johnson, Richard S. Barclay
Publikováno v:
Frontiers in Plant Science, Vol 13 (2022)
The Chicxulub bolide impact has been linked to a mass extinction of plants at the Cretaceous—Paleogene boundary (KPB; ∼66 Ma), but how this extinction affected plant ecological strategies remains understudied. Previous work in the Williston Basin
Externí odkaz:
https://doaj.org/article/63bb1d06b219445189531de0466b9e21
Autor:
S. Augusta Maccracken, Ian M. Miller, Kirk R. Johnson, Joseph J. W. Sertich, Conrad C. Labandeira
Publikováno v:
PLoS ONE, Vol 17, Iss 8 (2022)
Externí odkaz:
https://doaj.org/article/5c10c1bcf42243b88fd6ca6df9e583c4
Autor:
S. Augusta Maccracken, Ian M. Miller, Kirk R. Johnson, Joseph M. Sertich, Conrad C. Labandeira
Publikováno v:
PLoS ONE, Vol 17, Iss 1 (2022)
The Upper Cretaceous (Campanian Stage) Kaiparowits Formation of southern Utah, USA, preserves abundant plant, invertebrate, and vertebrate fossil taxa. Taken together, these fossils indicate that the ecosystems preserved in the Kaiparowits Formation
Externí odkaz:
https://doaj.org/article/07d759a717294b3ebd9977de829d40d5
Autor:
Douglas J. Nichols, Kirk R. Johnson
In this text, two of the world's leading experts in palynology and paleobotany provide a comprehensive account of the fate of land plants during the'great extinction'about 65 million years ago. They describe how the time boundary between the Cretaceo
Autor:
Anthony J. Fuentes, William C. Clyde, Ken Weissenburger, Antoine Bercovici, Tyler R. Lyson, Ian M. Miller, Jahandar Ramezani, Vincent Isakson, Mark D. Schmitz, Kirk R. Johnson
Publikováno v:
Rocky Mountain Geology. 54:133-153
The Cretaceous–Paleogene (K–Pg) boundary interval represents one of the most significant mass extinctions and ensuing biotic recoveries in Earth history. Earliest Paleocene fossil mammal faunas corresponding to the Puercan North American Land Mam
Publikováno v:
Nature. 581:137-139
Geological samples must be archived for all if we are to solve the riddles of Earth’s complex history. Geological samples must be archived for all if we are to solve the riddles of Earth’s complex history.
Publikováno v:
PALAIOS. 34:43-48
Taphonomic processes may filter in a biased manner the tiny fraction of leaves preserved as fossils. A common perception is that large leaves are underrepresented; this is based both on intuition (large leaves are more likely to break apart) and some
Autor:
C.W. Anderson, Jennifer B. Kowalczyk, Anita Roth-Nebelsick, Peter J. Franks, Michaela Grein, Ian M. Miller, David J. Beerling, Wilfried Konrad, Kirk R. Johnson, Jahandar Ramezani, Dana L. Royer, Samuel A. Bowring
Publikováno v:
Paleoceanography and Paleoclimatology. 33:1427-1438
Autor:
Kirk R. Johnson, Dave Baysinger
Publikováno v:
Acta Geologica Polonica. 66:III-XIII