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Supplementary Materials

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  • Supplementary Materials and Methods
  • Fig. S1. A comparison of the 14C ages conventional radiocarbon years before the present (BP) reported on samples of short-lived plant remains in table S1 by site (excluding the four dates with problematic δ13C values—see table S1).
  • Fig. S2. The nonmodeled, individual, calibrated calendar dating probability ranges for the 14C dates reported in table S1 (excluding the four with problematic δ13C values—see table S1).
  • Fig. S3. The nonmodeled, individual, calibrated calendar dating probability ranges for the 14C dates reported in table S1 shown against the IntCal13 calibration curve and the (nonmodeled) calibrated age probabilities for the subset of dates on samples just from Mantle early contexts.
  • Fig. S4. Photos and ring-width measurements, WAR-1 sample.
  • Fig. S5. Comparison of the 14C range (overall 1σ) of the set of 14C dates on short-lived plant remains from Warminster (see table S1) against the modeled (mid-point) and raw (constituent) IntCal13 (34) data (shown with 1σ errors) (raw data from: http://intcal.qub.ac.uk/intcal13/) placed within the calendar period, ~1596–1619, identified in the analysis reported in Fig. 2.
  • Fig. S6. Results from an alternative run of the dataset in Fig. 3 as summarized in Fig. 3B but using the Charcoal Plus Outlier model.
  • Fig. S7. Results from an alternative run of the dataset in Fig. 3 as summarized in Fig. 3B but after excluding the six minor possible outliers identified by the SSimple Outlier model in the various R_Combines (VERA-6286 O:8/5, OxA-33079 O:8/5, VERA-6215_2 O:12/5, VERA-6219 O:12/5, OxA-33082 O:16/5, and VERA-6217 O:6/5).
  • Fig. S8. Revised model of the Spang site data as a Sequence with the Midden 2 Level 4 date treated as earlier than the Phase of Midden 2 Level 3 dates.
  • Fig. S9. Revised model of the Mantle site as a Sequence using those samples best associated with the intrasite phasing.
  • Fig. S10. Comparisons of the Warminster Date Estimate probability density function (PDF) from Fig. 2D with the Date Mantle PDF from Fig. 3.
  • Fig. S11. Comparison of the PDFs for the Date Mantle estimate from 10 runs of the Mantle model in Fig. 3.
  • Table S1. The samples and conventional radiocarbon dates used in this study.
  • Table S2. UGAMS radiocarbon dates on the Warminster Feature 12 Prunus Americana (plum) sample using several different pretreatment approaches (data as listed in table S1).
  • Table S3. Details of the results from the Mantle internal site sequence model in fig. S9.
  • Table S4. Order calculation from OxCal determining the probability that t1 is less than (i.e., older than) t2.
  • Table S5. OxCal runfiles for the Warminster site in Fig. 2.
  • Table S6. OxCal runfile for the Draper, Spang, and Mantle site analysis shown in Fig. 3.
  • Table S7. OxCal runfile for the Spang Sequence analysis shown in fig. S8.
  • Table S8. OxCal runfile for the Mantle Sequence analysis shown in fig. S9 and with results in table S3.
  • Table S9. The OxCal runfile for the Draper-Spang-Mantle sequence analysis shown in Fig. 4 and with results in Table 2.
  • References (50102)

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