An Act designating the Hynerpeton bassetti, a stem tetrapod, as the official State fossil of the Commonwealth of Pennsylvania; and making a repeal.

HB 1554 designates *Hynerpeton bassetti*, an extinct early four-limbed vertebrate discovered in Pennsylvania’s Red Hill fossil site, as the official State fossil. The bill replaces Pennsylvania’s previous official fossil (designated in 1988) and aims to promote fossil education and appreciation within the state. It repeals the 1988 law establishing the prior fossil and takes effect immediately. This is a symbolic, non-regulatory change affecting Pennsylvania’s official state identity.