Results 171 to 180 of about 40,268 (264)

Evolution of Insect Pollination Before Angiosperms and Lessons for Modern Ecosystems. [PDF]

Insects
Negri I, Toledo ME.
europepmc   +1 more source

A unique Sphenophyllum-mimicking insect in the Permian. [PDF]

BMC Biol
Fu Y, Liu Y, Zhou W, Haug JT, Haug C, Song X, Cai C, Huang D.   +7 more
europepmc   +1 more source

A highly diverse Pennsylvanian tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia). [PDF]

PeerJ
Calábková G, Březina J, Nádaskay R.
europepmc   +1 more source

Evaluation of potential helium source rocks and helium enrichment factors in coalbed methane in the eastern margin of Ordos basin. [PDF]

Sci Rep
Chen Y, Tao S, Kang R, Gao J, Yang Y, Fang X, Song W, Chen Y, Liu X.   +8 more
europepmc   +1 more source

Duration of super-emitting oil and gas methane sources. [PDF]

Nat Commun
Cusworth DH, Bon DM, Varon DJ, Ayasse AK, Asner GP, Heckler J, Sherwin ED, Biraud SC, Duren RM.   +8 more
europepmc   +1 more source

Characteristics and genesis of permian chert in the middle and upper Yangtze Region, China. [PDF]

PLoS One
Zhang DZ, Luo JX, Feng B, He YB, Wen Z.
europepmc   +1 more source

Enrichment Characteristics and Genetic Analysis of Rare Earth Elements in the Lower Longtan Formation Coal of Qianbei Coalfield, Guizhou Province. [PDF]

ACS Omega
Li Y, Zhu Y, Yang Z, Wang F, Ding Y, Li B, Yang Y, Hu C.   +7 more
europepmc   +1 more source

Evidence for high-frequency hearing in a Permian stem reptile. [PDF]

Nat Commun
Jenkins KM, Fleming RC, Daza JD, Sues HD.   +3 more
europepmc   +1 more source

Origin of Silica for the Permian Gufeng Formation and Its Relation to Organic Matter Enrichment in the Lower Yangtze Region: A Case Study of Well GD1. [PDF]

ACS Omega
Li X, Li Z, Liu Y, Ding J, Tong Z, Shi G, Wei X, Zhang J.   +7 more
europepmc   +1 more source

Origin of Texas Red Beds [PDF]

, 1916
Baker, Charles Laurence
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