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Journal Article
Journal: GSA Bulletin
Published: 07 May 2024
GSA Bulletin (2024) 136 (11-12): 4877–4895.
... of the Campanian Ignimbrite pyroclastic density current. Thickness, mass, and clast-size distributions across paleotopography were used to infer that the main transport system was a dilute, density-stratified pyroclastic density current, which was at least 1.5 km thick, which was short-lived (possibly as short...
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Journal Article
Published: 01 December 2023
Earth Sciences History (2023) 42 (2): 416–432.
... ). 15 The decorative rockery was valued at $350 dollars, equivalent to approximately $12,535 today ( CPI Inflation Calculator ). No extant examples of the polished paperweights, cubes or rockeries are known. In our 2020 article we noted that the mass of known specimens worldwide amounts to no more...
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Journal Article
Journal: Paleobiology
Published: 01 November 2023
Paleobiology (2023) 49 (4): 700–711.
... and body mass among cursorial birds extending back to the Late Cretaceous. Data from fossil foramina are compared with those of extant species, revealing similar scaling relationships for all cursorial birds and supporting crown bird–like terrestrial locomotor activity. Because the perfusion rate in long...
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Journal Article
Journal: Geoenergy
Published: 19 June 2023
Geoenergy (2023) 1 (1): geoenergy2023-002.
... geothermal potential, a characterization of the structural organization at the basin scale and an understanding of mass and heat transfer are, therefore, useful for correctly estimating the technical and economic potential for geothermal energy. The distribution of the resources can be quantified based...
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Journal Article
Published: 01 March 2023
Journal of Paleontology (2023) 97 (2): 434–453.
... regressions based on humerus length and humerus proximal width of extant penguins yield mean estimates of a live body mass in the range of 148.0 kg (95% CI: 132.5 kg–165.3 kg) and 159.7 kg (95% CI: 142.6 kg–178.8 kg), respectively, for Kumimanu fordycei . A second new species, Petradyptes stonehousei n. gen...
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Journal Article
Journal: Paleobiology
Published: 01 May 2022
Paleobiology (2022) 48 (2): 324–339.
... the absolute magnitudes of measurements, it is possible that fDFA results could partially reflect the role of overall size in determining diet. Certainly, mass plays a role in shaping the diets of mammals (Carbone et al. 1999 ; Price and Hopkins 2015 ; Pineda-Munoz et al. 2016a ), so we must consider...
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Journal Article
Journal: Paleobiology
Published: 01 May 2022
Paleobiology (2022) 48 (2): 210–238.
...Caleb M. Brown; Nicolás E. Campione; Gregory P. Wilson Mantilla; David C. Evans Abstract The end-Cretaceous (K/Pg) mass extinction event is the most recent and well-understood of the “big five” and triggered establishment of modern terrestrial ecosystem structure. Despite the depth of research...
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Journal Article
Journal: Paleobiology
Published: 01 February 2022
Paleobiology (2022) 48 (1): 137–153.
... and Vampyrum spectrum . Also, we reconstructed the body mass of N. magdalenensis to be ~95 g, larger than most insectivorous bats, but smaller than the largest carnivorous bat ( V. spectrum ). Our results confirm that N. magdalenensis was not a specialized carnivore. It remains to be demonstrated...
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Journal Article
Published: 14 July 2021
Canadian Journal of Earth Sciences (2021) 58 (9): 852–869.
... ). Table 1. Taxa examined in this study of the Morrison Formation dinosaur fauna ( N  = 43), listed in order of increasing mass. Fig. 1. Diversity of taxa in the Morrison Formation (MOR). Diplodocidae is the most diverse constituent of MOR dinosaurian fauna. The overall dinosaurian diversity...
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Journal Article
Journal: Geology
Published: 12 January 2021
Geology (2021) 49 (5): 551–555.
... be widespread. To explore this possibility, we quantified the fraction of porosity produced by physical weathering, F PP , at three sites with differing climates in granitic bedrock of the Sierra Nevada, California, USA. We found that strain produces more porosity than chemical mass loss at each site...
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Journal Article
Published: 01 January 2021
Reviews in Mineralogy and Geochemistry (2021) 86 (1): 35–95.
...) but differing atomic weight. This is only energetically accommodated by a change in neutrons and it was this paper that the name “ isotope ” emerges. The discovery of the positive ray spectrograph, later termed mass spectrometer by Aston (1919) was a major breakthrough in understanding not only nuclear decay...
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Journal Article
Journal: Paleobiology
Published: 01 November 2020
Paleobiology (2020) 46 (4): 478–494.
... question. Body size is perhaps the most widely researched functional trait in paleobiology (Damuth and MacFadden 1990 ). Many empirical patterns of spatial and temporal distributions of body mass have been identified and debated in various ecological circumstances (e.g., Bergman's rule, Cope's rule...
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Journal Article
Journal: Paleobiology
Published: 01 November 2020
Paleobiology (2020) 46 (4): 550–568.
... make Archosauria a useful clade with which to study the interplay between body size, shape, and locomotor behavior, and how this interplay may have influenced locomotor evolution. Here, digital volumetric models of 80 taxa are used to explore how mass properties and body proportions relate to each...
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Journal Article
Journal: Paleobiology
Published: 01 August 2020
Paleobiology (2020) 46 (3): 304–319.
... from the original data; therefore, whether such morphospaces accurately reflect body-plan disparity or extrinsic factors, such as body size, remains uncertain. We collated nine character–taxon matrices of dinosaurs together with body-mass estimates for all taxa and tested for relationships between body...
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Journal Article
Published: 16 April 2020
Geochemistry: Exploration, Environment, Analysis (2020) 20 (2): 199–204.
...T. Kurt Kyser; Matthew I. Leybourne; Daniel Layton-Matthews Abstract Among the emerging techniques to detect the real footprint of buried ore deposits is isotope tracing. Novel and automated preparation systems such as continuous flow isotope ratio mass spectrometry, off-axis integrated cavity...
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Journal Article
Published: 01 April 2020
Journal of Foraminiferal Research (2020) 50 (2): 195–203.
... of the planktonic Foraminifera Orbulina universa : A source for paleoceanographic information? : Brazilian Journal of Oceanography , v. 67 , p. e19252 . Fisher, C. , 2003 , Planktic foraminiferal porosity: A water mass proxy...
Journal Article
Journal: Paleobiology
Published: 12 September 2019
Paleobiology (2019) 45 (4): 598–611.
... highly positive values and hypercarnivores generally exhibiting highly negative values. The second axis (CA 2), representing 16.0% of the total variation, correlates most strongly (negatively) with body mass, the angle of upper carnassial cusps in occlusal view, and, to a lesser extent (positively...
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Journal Article
Journal: Paleobiology
Published: 01 May 2019
Paleobiology (2019) 45 (2): 363–377.
... measurements of 69 anatomical features of the shells of 108 live tortoises indicate that the regression between straight carapace length and weight is most significant, with a maximum r 2 > 0.99. This regression is useful for tortoises that weigh between 1.8 and 339 kg. This mass estimate, coupled...
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Journal Article
Journal: PALAIOS
Published: 29 November 2018
PALAIOS (2018) 33 (11): 514–523.
..., over a period of 5 My (from MP24 to MP27), only two occurrences (Rigal-Jouet and Saint-Martin de Casselvi, MP25) have been reported. Based on body mass and the general Hyaenodon body plan, we confidently identify H. leptorhynchus as a cursorial hypercarnivorous predator, hunting prey such as small...
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Journal Article
Published: 01 May 2018
Earthquake Spectra (2018) 34 (2): 459–469.
... stiffness of the structure. The tempered-steel compression springs have an outside diameter of 22 mm, wire diameter of 2 mm, and mass per length of approximately 0.22 grams/mm. The constant stiffness DLM springs are all approximately 100 mm in length, and the constant mass DLM springs are zero...
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