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Figure 1. Gasterosteus doryssus with three dorsal spines (D 1 –D 3 ), seven predorsal pterygiophores (R 1 –R 7 , with asterisks indicating intervening pterygiophores) with five contact points between them, and a fully expressed pelvis (P). Diagrams below the specimen indicate the range of pelvic

Journal Article

Inferring natural selection in a fossil threespine stickleback

Michael A. Bell, Matthew P. Travis, D. Max Blouw

Journal: Paleobiology

Publisher: Paleontological Society

Published: 01 December 2006

Paleobiology (2006) 32 (4): 562–577.

DOI: https://doi.org/10.1666/05026.1

...Figure 1. Gasterosteus doryssus with three dorsal spines (D 1 –D 3 ), seven predorsal pterygiophores (R 1 –R 7 , with asterisks indicating intervening pterygiophores) with five contact points between them, and a fully expressed pelvis (P). Diagrams below the specimen indicate the range of pelvic...

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Figure 4. Evolutionary rates (Δ) for three armor traits of fossil Gastero...

in Inferring natural selection in a fossil threespine stickleback > Paleobiology

Published: 01 December 2006

Figure 4. Evolutionary rates (Δ) for three armor traits of fossil Gasterosteus doryssus . Most rates fall within the range expected for genetic drift (black), and few are within the range expected for stabilizing (hatched) or directional selection (open). See text for calculation of Δ

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Appendix Phenotypic means, variances, and sample sizes for three armor tra...

in Inferring natural selection in a fossil threespine stickleback > Paleobiology

Published: 01 December 2006

Appendix Phenotypic means, variances, and sample sizes for three armor traits of Gasterosteus doryssus . The interval is the beginning of the 250–year time interval since the first year of the 21,500–year stratigraphic section. Abbreviations: PS, mean of the natural log of pelvic score; DS

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Figure 3. Mean values for three armor traits of fossil <span class="search-highlight">Gasterosteus</span> dorys...

Figure 3. Mean values for three armor traits of fossil Gasterosteus dorys...

in Inferring natural selection in a fossil threespine stickleback > Paleobiology

Published: 01 December 2006

Figure 3. Mean values for three armor traits of fossil Gasterosteus doryssus during about 21,500 years. The time interval included corresponds to the period between samples 19 and 26 of Bell et al. (1985) . Each point represents the mean from specimens within a 250-year interval plotted

Journal Article

Microstratigraphic study of meristic variation in an Eocene fish from a 10 000-year varved interval at Horsefly, British Columbia

Douglas G. Barton, Mark V.H. Wilson

Journal: Canadian Journal of Earth Sciences

Publisher: Canadian Science Publishing

Published: 01 March 2000

Canadian Journal of Earth Sciences (2000) 36 (12): 2059–2072.

DOI: https://doi.org/10.1139/e99-085

... for anomalies) is considered to be interspecific; there is no evidence of phenotypic change within one lineage through time. Bell and colleagues ( Bell 1973 , 1988 ; Bell and Haglund 1982 ; Bell and Legendre 1987 ; Bell et al. 1985 , 1987 ) studied Miocene sticklebacks ( Gasterosteus doryssus ) preserved...

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