-
1
المؤلفون: Ahlberg, Per, Axheimer, Niklas, Robison, Richard A.
المصدر: Geobios. 40(6):709-714
-
2
المؤلفون: Zhong Li, Biao Gao, Xiaoqun Yang, Yuanquan Zhou
المصدر: Palaeogeography, Palaeoclimatology, Palaeoecology. 571:110385
مصطلحات موضوعية: 010506 paleontology, biology, Terrigenous sediment, Ptychagnostus atavus, Geochemistry, Paleontology, Dice, 010502 geochemistry & geophysics, Oceanography, biology.organism_classification, 01 natural sciences, Isotopes of oxygen, Trilobite, Clastic rock, Ecology, Evolution, Behavior and Systematics, Geology, 0105 earth and related environmental sciences, Earth-Surface Processes, Zircon, Marine transgression
-
3
المؤلفون: Susanne Schmid, Anais Pagès
المصدر: Palaeogeography, Palaeoclimatology, Palaeoecology. 461:65-76
مصطلحات موضوعية: 010506 paleontology, biology, Cambrian Series 3, Ptychagnostus atavus, Excursion, Paleontology, Dice, 010502 geochemistry & geophysics, Oceanography, biology.organism_classification, 01 natural sciences, Global Boundary Stratotype Section and Point, Isotopes of carbon, Stage (stratigraphy), First appearance datum, Ecology, Evolution, Behavior and Systematics, Geology, 0105 earth and related environmental sciences, Earth-Surface Processes
-
4
المؤلفون: Per Ahlberg, Frans Lundberg, Anders Lindskog, Mats Eriksson
المصدر: GFF; 138(4), pp 490-501 (2016)
مصطلحات موضوعية: Sweden, 010506 paleontology, biology, Cambrian Series 3, Ptychagnostus atavus, Alum Shale Formation, Paleontology, Västergötland, Geology, Lejopyge laevigata, 010502 geochemistry & geophysics, biology.organism_classification, 01 natural sciences, trilobites, Cambrian, Ordovician, biostratigraphy, agnostoids, Olenus, Cambrian Series 2, Ptychagnostus, 0105 earth and related environmental sciences
وصف الملف: application/pdf
-
5
المؤلفون: Harald Strauss, Thomas Wotte
المصدر: Geological Magazine. 152:1085-1103
مصطلحات موضوعية: biology, δ13C, δ18O, Ptychagnostus atavus, Geology, Biozone, biology.organism_classification, Trilobite, chemistry.chemical_compound, Paleontology, δ34S, chemistry, Carbonate, Seawater
-
6
المؤلفون: Duck K. Choi, Paul S. Hong
المصدر: Journal of Paleontology. 89:377-384
مصطلحات موضوعية: Paleontology, Cambrian Series 3, Group (stratigraphy), Ptychagnostus atavus, Structural basin, Biology, Ptychagnostus, biology.organism_classification
-
7
المؤلفون: Keith D. Corbett, James B. Jago, Christopher J Bentley, Lin Tian-rui
المساهمون: Jago, JB, Bentley, CJ, Tian-Rui, Lin, Corbett, KD
المصدر: Australian Journal of Earth Sciences. 61:959-966
مصطلحات موضوعية: biology, Range (biology), Ptychagnostus atavus, Fauna, middle Cambrian, Lejopyge laevigata, biology.organism_classification, Tasmania, trilobites, Kootenia, Trilobite, Waves and shallow water, Paleontology, Group (stratigraphy), Earth and Planetary Sciences (miscellaneous), General Earth and Planetary Sciences, limestone, Geology, Comstock Formation
-
8
المؤلفون: Robyn A. Howley, Ganqing Jiang
المصدر: Palaeogeography, Palaeoclimatology, Palaeoecology. 296:138-150
مصطلحات موضوعية: biology, Carbonate platform, Cambrian Series 3, Ptychagnostus atavus, Paleontology, Oceanography, biology.organism_classification, Trilobite, Global Boundary Stratotype Section and Point, Chemostratigraphy, Stage (stratigraphy), First appearance datum, Ecology, Evolution, Behavior and Systematics, Geology, Earth-Surface Processes
-
9
المؤلفون: Michael J. Vendrasco, Artem Kouchinsky, Christine Z. Fernandez, Susannah M. Porter, Guoxiang Li
المصدر: Palaeontology. 53:97-135
مصطلحات موضوعية: Calcite, biology, Ptychagnostus atavus, Shell (structure), Paleontology, biology.organism_classification, Microstructure, chemistry.chemical_compound, Yochelcionella, Taxon, chemistry, Stage (stratigraphy), Ecology, Evolution, Behavior and Systematics, Geology
-
10
المؤلفون: Mats Eriksson, Niklas Axheimer, Per Ahlberg, Birger Schmitz, Fredrik Terfelt, Loren E. Babcock
المصدر: Lethaia. 42:2-16
مصطلحات موضوعية: biology, Ptychagnostus atavus, Agnostus, Paleontology, Biozone, Biostratigraphy, biology.organism_classification, Trilobite, Chemostratigraphy, Baltica, Olenus, Ecology, Evolution, Behavior and Systematics, Geology