Table of Contents

Abstract

Acknowledgments

List of Figures

List of Tables

CHAPTER 1: INTRODUCTION

CHAPTER 2: THE PROBLEM: WHY CORRUGATED POTTERY?

CHAPTER 3: THEORY: TOWARD A UNIFIED EVOLUTIONARY APPROACH

CHAPTER 4: RESEARCH DESIGN: IMPLEMENTING AN EVOLUTIONARY APPROACH TO THE CORRUGATION PROBLEM

CHAPTER 5: THE DEVELOPMENT AND SPREAD OF CORRUGATION

CHAPTER 6: THE PRODUCTION AND USE OF PUEBLOAN UTILITY WARES

CHAPTER 7: ENGINEERING PROPERTIES OF PLAIN AND CORRUGATED VESSELS

CHAPTER 8: EXPLAINING CORRUGATION

CHAPTER 9: CONCLUSIONS

BIBLIOGRAPHY

APPENDIX A: ANALYSIS OF POTENTIAL ASSEMBLAGE AND SHERD SIZE BIASES

List of Figures

Figure 1: Map of the Southwest.
Figure 2: Examples of plain, neckbanded, and corrugated vessels.
Figure 3: Conceptual units in evolutionary theory.
Figure 4: Map of the Mesa Verde region.
Figure 5: Seriation of painted pottery from analyzed sites.
Figure 6: Diagram of metric attributes recorded on exposed coils.
Figure 7: Relative abundance of sherds with exposed coils.
Figure 8: Box plot of the percentage of overlap between adjacent exposed coils.
Figure 9: Box plot of the height of exposed coils.
Figure 10: Box plot of coil junction depth for filleted and overlapped exposed coils.
Figure 11: Spacing of indentations on exposed coils.
Figure 12: An example of early indenting on neck-banded pottery.
Figure 13: The relative abundance of pottery assigned to different classes of exposed coils.
Figure 14: Map showing a reconstruction of the spread of early neck banding in the American Southwest.
Figure 15: Map showing a reconstruction of the spread of full-body, indented corrugation in the American Southwest.
Figure 16: Diagrams of sherd core color pattern classification used in this study.
Figure 17: Change in the relative frequency of pottery wares through time in the Mesa Verde region.
Figure 18: Plot of the relative frequency of bowl sherds against age for dated pottery assemblages from the Mesa Verde region.
Figure 19: Diagram of common vessel forms in utility ware assemblages.
Figure 20: Box plots showing the change through time in estimates of the accumulation rates of utility ware and white ware pottery in assemblages from the Mesa Verde region.
Figure 21: Box plots of the average weight of plain/neck-banded and corrugated utility wares compiled from published sources on pottery assemblages in the Mesa Verde region.
Figure 22: Scatter plot of rim radius estimates and rim cord length measurements.
Figure 23: Box plots of rim cord length and rim radius for wide-mouth and indeterminate jar forms.
Figure 24: Cumulative percentage graphs of estimated rim radii weighted by degrees of arc for wide-mouth and indeterminate jars.
Figure 25: Relative abundance of spalling and interior surface pitting of different vessel parts.
Figure 26: Relative abundance of spalling and interior surface pitting.
Figure 27: Relative abundance of sherds with surface soot accumulations.
Figure 28: Examples of fired plain replica vessels used in experiments
Figure 29: Examples of fired full-body corrugated replica vessels used in experiments.
Figure 30: The placement of pots, tiles, and thermocouple probes in kiln before firing.
Figure 31: Sketch map of the arrangement of vessels and thermocouple probes in the kiln used to fire the replica vessels.
Figure 32: Temperature profiles for pit kiln firing of replica utility ware vessels.
Figure 33: Vessel forming times by sequence of construction for the 12 plain and 12 corrugated replicas.
Figure 34: Box plot of time needed to form replicas of plain and corrugated vessels.
Figure 35: Arrangement of vessels and temperature probes used to perform heating effectiveness and use-life experiments.
Figure 36: Box plots of time elapsed before reaching peak temperature.
Figure 37: Box plots of peak temperature.
Figure 38: Scatter plot of heating effectiveness and vessel wall permeability.
Figure 39: Changes in heating effectiveness over experimental runs.
Figure 40: Box plots of the strength (MOR) of upper body and base fragments.
Figure 41: Photograph of vessel 15 failure.
Figure 42: Photograph of fragments produced when vessel 15 failed.
Figure 43: Vertical profiles of exterior and interior vessel wall temperatures.
Figure 44: Box plot of strength (MOR) of base fragments cut from replica plain and corrugated vessels used for different amounts of time.
Figure 45: Ratios of median base to median upper body strength (MOR).
Figure 46: Scatter plot of the heating effectiveness of plain and corrugated vessels over experimental use-life.
Figure 47: A model that shows the relationship between sensitivity to the risks of innovation and productivity under conditions of increasing and diminishing returns.
Figure 48: Variation in sherd size among the six utility ware assemblages.
Figure 49: Change in the percentage of pottery with exposed coils, filleted exposed coils, and overlapped exposed coils with increasing sample size.
Figure 50: Change in the percentage of nonrandom fracture patterns in plain-surfaced pottery with increasing sample size.
Figure 51: Changes in the mean value of metric attributes of exposed coils plotted against increasing sample size.
Figure 52: Changes in the percentages of exposed coil classes with increasing sample size.
Figure 53: Changes in the percentages of different core color patterns with increasing sample size.
Figure 54: Changes in the percentages of fire clouds with increasing sample size.
Figure 55: Changes in the percentages of different vessel forms, using two quantification techniques, with increasing sample size.
Figure 56: Changes in the percentages of different vessel forms, using two quantification techniques, with increasing sample size.
Figure 57: Changes in the percentages of different vessel forms, using two quantification techniques, with increasing sample size.
Figure 58: Changes in the percentages of rim radii with increasing sample size.
Figure 59: Changes in the percentages of rim radii with increasing sample size.
Figure 60: Changes in the percentages of rim radii with increasing sample size.
Figure 61: Changes in the percentages of different use-related alterations with increasing sample size.

List of Tables

Table 1: Abundance of pottery with exposed coils on different vessel forms.
Table 2: Abundance of pottery with exposed coils on different vessel parts.
Table 3: Association between fracture pattern and sherd size for plain-surfaced pottery.
Table 4: Abundance of different surface forming marks on plain-surfaced utility ware pottery.
Table 5: Abundance of different core structures in plain-surfaced pottery.
Table 6: Abundance of filleted and overlapped exposed coils.
Table 7: Abundance of different manipulations of exposed coil surfaces.
Table 8: Abundance by weight of different core color patterns.
Table 9: Abundance of fire clouds on interior and exterior surfaces of utility ware pottery.
Table 10: Weight of pottery assigned to specific vessel form classes.
Table 11: Degrees of arc encompassed by rim segments assigned to specific vessel form classes.
Table 12: Differences in the relative abundance of vessels forms between the two quantification methods.
Table 13: Abundance of different surface wear classes on utility ware pottery.
Table 14: Abundance of surface accumulations on utility ware pottery.
Table 15: Measurements on replica utility ware vessels used in experiments.
Table 16: Vessel numbers assigned to different factor combinations for experiments.
Table 17: Results of impact strength tests on plain and corrugated vessels used for different amounts of time.
Table 18: Results of biaxial flexure strength tests on fragments from plain and corrugated vessels used for different amounts of time.
Table 19: Frequency of replica vessels with pitted interior basal surface after use in experiments by factor combination.
Table 20: Fracture pattern data for different classes of exposed coils and scraped plain pottery.
Table 21: The richness of utility ware features in relation to sample size.