Results 21 to 30 of about 7,153,299 (305)

The Lower Cretaceous Deposits of Maryland [PDF]

Science, 1912
F. H. Knowlton
openaire   +2 more sources

Lower Cretaceous Lepidoptera [PDF]

Nature, 1977
LEPIDOPTERA are rare in the fossil record and, until relatively recently, most fossil butterflies and moths had been found in Tertiary deposits. Records of Lepidoptera from earlier in the fossil record have been discounted1. The first evidence of a Cretaceous lepidopteran was Mackay's description2 of the head of a caterpillar in amber (about 72 Myr BP).
openaire   +1 more source

Detrital events within pelagic deposits of the Umbria-Marche basin (Northern Apennines, Italy). Further evidence of Early Cretaceous tectonics [PDF]

, 2016
Re-sedimented deposits characterize different stratigraphical intervals in the pelagic successions of the Umbria-Marche-Sabina Domain (Central and Northern Apennines, Italy).
CIPRIANI, ANGELO, CITTON, PAOLO, FABBI, SIMONE, ROMANO, MARCO   +3 more
core   +1 more source

Two new long-rostrum cranefly species from the Cretaceous Iberian amber (Diptera, Limoniidae, Helius)

Scientific Reports, 2021
First record of the genus Helius—long-rostrum cranefly from Maestrazgo Basin (eastern Spain, Iberian Penisula) is documented. Two new fossil species of the genus Helius are described from Cretaceous Spanish amber and compared with other species of the ...
Iwona Kania-Kłosok, Wiesław Krzemiński, Antonio Arillo   +2 more
doaj   +1 more source

Provenance and geochemistry of exotic clasts in conglomerates of the Oligocene Torehina Formation, Coromandel Peninsula, New Zealand [PDF]

, 2003
Non-marine pebble to cobble conglomerates of the lower Torehina Formation (Oligocene) crop out along western Coromandel Peninsula and overlie, with strong angular discordance, continental-margin metasedimentary rocks (Manaia Hill Group) of Mesozoic (Late
Baker C. K., Ballance P. F., Black P. M., Dickinson W. R., Dix G. R., Dott R. H., Hayward B. W., Hochstein M. P., Hutchinson C. S., Kear D., Kear D., Kear D., King P. R., Kingma J. T., Laird M. G., Nelson C. S., Skinner D. N. B., Skinner D. N. B., Skinner D. N. B., Surdam R. C.   +19 more
core   +2 more sources

Occurrence of Brachyoxylon Hollick et Jeffrey from the Lower Cretaceous of Zhejiang Province, southeastern China

Journal of Palaeogeography, 2018
The Lower Cretaceous Guantou Formation is known as an important horizon for the Cretaceous petrified woods in southern China. Though abundant Cretaceous wood remains have been found in this formation, only one species has been recognized.
N. Tian, Zhipeng Zhu, Yong-dong Wang, Siwei Wang   +3 more
semanticscholar   +1 more source

Provenance reconstructions. Article 2. Litho- and isotope-geochemical approaches and methods

Литосфера, 2020
Research subject. In this paper, we consider specific features of the use of litho- and isotopic-geochemical data for the purposes of provenance reconstruction.Methods and materials.
A. V. Maslov, O. Yu. Melnichuk, G. A. Mizens, Yu. V. Titov, M. V. Chervyakovskaya   +4 more
doaj   +1 more source

A new megaspilid wasp from Eocene Baltic amber (Hymenoptera: Ceraphronoidea), with notes on two non-ceraphronoid families: Radiophronidae and Stigmaphronidae [PDF]

PeerJ, 2018
Ceraphronoids are some of the most commonly collected hymenopterans, yet they remain rare in the fossil record. Conostigmus talamasi Mikó and Trietsch, sp. nov. from Baltic amber represents an intermediate form between the type genus, Megaspilus, and one
István Mikó, Thomas van de Kamp, Carolyn Trietsch, Jonah M. Ulmer, Marcus Zuber, Tilo Baumbach, Andrew R. Deans   +6 more
doaj   +2 more sources

Digit-only sauropod pes trackways from China - evidence of swimming or a preservational phenomenon? [PDF]

, 2016
For more than 70 years unusual sauropod trackways have played a pivotal role in debates about the swimming ability of sauropods. Most claims that sauropods could swim have been based on manus-only or manus-dominated trackways.
C Gierliński, C Swanson, D Li, DL Johnson, DM Henderson, DQ Li, DQ Li, H Mallison, H Zhang, HL You, HL You, HL You, J Zhang, JA Wilson, JJ Day, JJ Song, JRA Usherwood, JY Song, KG Hwang, LD Xing, LD Xing, LD Xing, LD Xing, LG Li, LM Ji, LS Ye, M Borsuk-Bialynicka, M Fujita, M Huh, MG Lockley, MG Lockley, MG Lockley, MG Lockley, MG Lockley, MG Lockley, MG Lockley, PL Falkingham, PL Falkingham, PL Falkingham, PL Falkingham, PL Falkingham, R Ezquerra, RM Alexander, RT Bird, S Ishigaki, VF Santos, VF Santos, Y Du, YH Tang, YN Lee   +49 more
core   +3 more sources

An improved model for the ikaite-glendonite transformation: evidence from the Lower Cretaceous of Spitsbergen, Svalbard

, 2018
Glendonites, pseudomorphs after marine sedimentary ikaite, are found throughout the Lower Cretaceous succession of Svalbard. Existing models for the ikaite-to-glendonite formation do not explain the different petrological fabrics observed in the ...
Madeleine L. Vickers, M. Watkinson, G. Price, R. Jerrett   +3 more
semanticscholar   +1 more source