Dataset used for the paper "A new paleotemperature method from biotic proxy indices - An example from the Upper Paleozoic paleogeographic and paleotectonics reconstructions of Siberia " The PaleoSib database data are available for analysis using web application PBTV available at https://mironcat.shinyapps.io/pbtv. Database scheme: https://drawsql.app/teams/pin-ras/diagrams/paleosib Data used for application: Paleosib2023_collections_sibplate_only.csv - geography and stratigraphy info about used collections Paleosib2023_occurrences_sibplate_only.csv - occurrence data represents the occurrence of a particular taxa at a particular location and temperatures. Paleosib2023_references.csv - used bibliographic references Paleosib2023_taxa_with_temperatures.csv - information about temperature ranges for taxa You can receive data using open API (https://biogeolog.tk/paleosib) provided by Directus ver. 8. The raw data stored at this repository received used API requests as .json and converted to .csv file format: refs.csv: https://biogeolog.tk/paleosib/items/refs?limit=-1 colls.csv: https://biogeolog.tk/paleosib/items/colls?limit=-1 locs.csvl: https://biogeolog.tk/paleosib/items/locs?limit=-1 taxa.csv: https://biogeolog.tk/paleosib/items/taxa?limit=-1 occurences.csv: https://biogeolog.tk/paleosib/items/occurences?limit=-1 taxanorm.csv: https://biogeolog.tk/paleosib/items/taxanorm?limit=-1 This work was funded by the subsidy allocated to Kazan Federal University for the state assignment project № FZSM-2023-0023 in the sphere of scientific activities.