Results 171 to 180 of about 345,840 (384)
... on the Cretaceous rocks of California [PDF]
American Journal of Sciencen ...
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Insect Science, EarlyView.We report three ca. 100 million‐year‐old lacewing larvae with extraordinarily large stemmata. One of them additionally has a very wide head, which represents a previously unknown morphology. The arrangement of the stemmata indicates stereoscopic vision in these predatory larvae.
Carolin Haug +9 more
wiley +1 more source
Principal characters of American Cretaceous pterodactyls; Part 1, The skull of Pteranodon [PDF]
, 1884 O. C. Marsh
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The predatory behavior of ants: an impressive panoply of morphological adaptations
Insect Science, EarlyView.This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source
6. A Note on the Japanese Cretaceous Ammonites Belonging to the Subfamily Desmoceratinae
, 1942 Taturo MATUMOTO
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, 1997 Cretaceous and Tertiary strata, which are widely exposed throughout the Operation Porcupine map area, consist of alternating shale- and sandstone-dominant formations. Sandstone-rich Lower Cretaceous strata tend to form a northeast-trending belt, extending from the Tuktoyaktuk Peninsula, through the northern Richardson Mountains, and across the northern
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Molecular Ecology Resources, EarlyView.ABSTRACT Quaternary climatic fluctuations had a substantial influence on ecosystems, species distribution, phenology and genetic diversity, driving extinction, adaptation and demographic shifts during glacial periods and postglacial expansions. Integration of genomic data and environmental niche modelling can provide valuable insights on how organisms ...
Marcella Sozzoni +16 more
wiley +1 more source
GEOCHEMICAL EVALUATION OF THE MIDDLE MAGDALENA BASIN, COLOMBIA
CT&F Ciencia, Tecnología & Futuro, 1997 The chemical composition of 25 crude oils from Tertiary reservoirs and 12 rock extracts from five organic-rich Cretaceous formations in the Middle Magdalena Basin, Colombia were studied in detail by geochemical methods in order to understand their ...
J. C RAMON, L DZOU, B GIRALDO
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