README: Late Ordovician (Hirnantian) brachiopod faunal list used for multivariate and network analyses

Data Structure:
Cases (Column 1: localities)
Variables (Row 1: brachiopod genera; 1=presence; 0=absence)

Data was derived from the following sources (see Data Description):
Multivariate (including network) analyses of Hirnantian brachiopod faunas from Laurentia and other tectonic plates (Fig. 3 and Fig.4 of the main paper) is based on the dataset Table-S1 Hirnantian Faunal List.xlsx.

The datasheet file (Hirnantian Faunal List.xlsx) contains two sheets:

Sheet 1 without singletons: In this data sheet, 67 genera are listed. Among the genera listed in sheet 2, a genus is omitted if it is known from only a single locality. This is the datasheet used for Fig. 3 and Fig. 4 of the main paper because singleton genera do not contribute to network relationships.

Sheet 2 with singletons: In this datasheet, 107 genera are listed, regardless whether a genus is known from a single locality or from multiple localities. This datasheet is provided for completeness of the Hirnantian faunal list only.

In this dataset, the brachiopod genera of Hirnantian age among 42 localities worldwide are compiled into a binary dataset (Table-S1; presence =1, absence = 0). The majority of the faunal lists was derived from the well-screened Hirnantian brachiopod faunal data of Rong et al. (2020). In this study, the Hirnantian faunal lists are updated for the following localities:

Anticosti Island, eastern Canada;
Edgewood region, American Mid-Continent;
Mackenzie Mountains, northwestern Canada.

Detailed discussions on these faunal update and references are provided in the main paper (section on Paleobiogeography of the Mackenzie Mountains Hirnantian fauna).

Reference:
Rong, J.Y., Harper, D.A.T., Huang, B., Li, R.Y, Zhang, X.L., and Chen, D., 2020, The latest Ordovician Hirnantian brachiopod faunas: New global insights. Earth-Science Reviews, v. 208, 103280.