There is an entire branch of geology dedicated to answering that question called stratigraphy [0]. It's hard to pinpoint exact dates but we can get a pretty goo

There is an entire branch of geology dedicated to answering that question called stratigraphy [0]. It's hard to pinpoint exact dates but we can get a pretty good estimate (313 million +/- half a million is pretty good). The authors describe how they determined the date in their paper [1]. In this case they know the relative age of the formation the tracks were found in (Manakacha Formation) because we know the age of the formations around it. The ages of the surrounding formations are estimated by the known ages of the fauna (other fossilized organisms) found in those formations (319 Ma below and 312 Ma above). [0] https://www.geotech.hr/en/how-to-determine-the-age-of-a-rock/ https://www.geotech.hr/en/how-to-determine-the-age-of-a-rock... [1] https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0237636#sec016 https://journals.plos.org/plosone/article?id=10.1371/journal...