DOI: 10.5061/dryad.xwdbrv1k9
title: Data from: Transgression-regression cycles drive correlations in Ediacaran-Cambrian rock and fossil records

description: Strata of the Ediacaran Period (635-538.8 Ma) yield the oldest known
 fossils of complex, macroscopic organisms in the geologic record. These
 “Ediacaran-type” macrofossils (known as the Ediacaran biota) first appear
 in mid-Ediacaran strata, experience an apparent decline through the
 terminal Ediacaran, and directly precede the Cambrian (538.8-485.4 Ma)
 radiation of animals. Existing hypotheses for the origin and demise of the
 Ediacaran biota include: changing oceanic redox states, biotic replacement
 by succeeding Cambrian-type fauna, and mass extinction driven by
 environmental change. Few studies frame trends in Ediacaran and Cambrian
 macroevolution from the perspective of the sedimentary rock record,
 despite well-documented Phanerozoic covariation of macroevolutionary
 patterns and sedimentary rock quantity. Here we present a quantitative
 analysis of North American Ediacaran–Cambrian rock and fossil records from
 Macrostrat and the Paleobiology Database. Marine sedimentary rock quantity
 increases nearly monotonically and by over a factor of five from the
 latest Ediacaran to the late Cambrian. Ediacaran–Cambrian fossil
 quantities exhibit a comparable trajectory and have strong (rs &gt;
 0.8) positive correlations with marine sedimentary area and volume flux at
 multiple temporal resolutions. Even so, Ediacaran fossil quantities are
 dramatically reduced in comparison to the Cambrian when normalized by the
 quantity of preserved marine rock. Although aspects of these results are
 consistent with the expectations of a simple fossil-preservation induced
 sampling bias, together they suggest that transgression-regression and a
 large expansion of marine shelf environments coincided with the
 diversification of animals during a dramatic transition that is starkly
 evident in both the sedimentary rock and fossil records.
description: Two existing datasets, Macrostrat's database of
 rocks/stratigraphy and a subset of Paleobiology Database (PBDB) fossil
 occurrence data, were merged on the basis of their shared rock unit name
 field for Ediacaran-Cambrian age (635-485.4 Ma) rocks/fossils of North
 America. Once PBDB fossil occurrences were matched to Macrostrat rock
 units in time and space (and checked), the fossil occurrence age ranges
 were modified based on the Macrostrat provided age model of a given fossil
 occurrences' host rock. Time series of fossil occurrences were
 generated from this updated data. Correlation coefficients were calculated
 from the generated time series of fossil occurrences and rock quantities
 through the Ediacaran-Cambrian geologic time Periods.
description: # Supplementary Data for Transgression-regression cycles drive
 correlations in Ediacaran-Cambrian rock and fossil records
 [https://doi.org/10.5061/dryad.xwdbrv1k9](https://doi.org/10.5061/dryad.xwdbrv1k9) All supplementary data files for this study, including R-scripts for analyses, an animation of fossil and stratigraphic column locations through time, tables of rock units matched to fossil occurrences, tables of fossil occurrence assigned ages, and correlations for Ediacaran and Cambrian rock and fossil quantities as separate time periods are included in this Dryad repository. ## Description of the data and file structure Supplementary Figure, Tables, and captions. Highlighting of cells in Table S3, S4, and S5 are to indicate statistical significance at different confidence levels. Green highlighting indicates a correlation that is significant at the 95% level, and yellow indicates a correlation that is significant at the 90% level. No coloring indicates correlations that are not statistically significant. ***Non-Code Supplementary Materials Include***: 2. **Figure S1 (Figure S1 - Animated E-Cm rock & fossil distributions.gif)**: .gif animated map (5 myr bins) of Ediacaran-Cambrian rock and fossil locations on North America 3. **Table S1 (Supplementary Table S1 - Matched Macrostrat units and occurrence counts.csv)**: Macrostrat unit\_id's, strat names, counts of matched PBDB occurrences, and the modeled top and bottom ages of strat units 4. **Table S2 (Supplementary Table S2 – PBDB matched occurrence ages)**: table of Ediacaran-Cambrian PBDB occurrences their PBDB formations/ages and their matched Macrostrat formations/ages. ***NOTE***: cells with 'null' values in this table are cells that were empty (had no value recorded) when pulled from the Paleobiology Database's API. 5. **Table S3 (Supplementary Table S3 Ediacaran-Cambrian Rock-Fossil 1st Difference Correlations.xlsx)**: Correlation coefficients and p-values of 1st differences for Ediacaran-cambrian rock and fossil quantities. 6. **Table S4 (Supplementary Table S4 Cambrian Rock-Fossil Correlations.xlsx)**: Correlation coefficients and p-values of raw rock and fossil quantities for only the Cambrian 7. **Table S5 (Supplementary Table S5 Ediacaran Rock-Fossil Correlations.xlsx)**: Correlation coefficients and p-values for rock and fossil quantities from only the Ediacaran 8. **Supplementary Figure and Table Captions** ## Sharing/Access information API calls used to collect data from the following publicly accessible data platforms are contained within the R-script files found within this supplementary data repository. ***Links to other publicly accessible locations of the data***: * [https://macrostrat.org](https://macrostrat.org) * [https://paleobiodb.org](https://paleobiodb.org) ## Code/Software 1. Supplement S1a-h: Data files and R scripts that produce the panels for all figures and tables - Note that all .csv files included should be             ***File-names are***:             - S1a\_PBDB\_Collections\_and\_Macrostrat\_column\_Map\_plotter\_(Figure\_1).R             - S1b\_PBDB\_occurrences\_and\_Macrostrat\_rock\_quantity\_time\_series\_(Figures\_2-5).R             - S1c\_PBDB\_fossils\_and\_Macrostrat\_rock\_correlations\_astrochron\_(Table\_1).R             - S1d\_NA Ediacaran Polygons 5-6-2021 v4.csv \- S1e\_pbdb\_data\_ed\_matched\_v7\.csv             - S1f\_pbdb\_data\_cm\_matched\_v7.csv             - S1g\_pbdb\_ed\_all\_non\_NA\_v1\_8-21-23.csv             - S1h\_pbdb\_cm\_all\_non\_NA\_v1\_8-21-23.csv