There are large gaps in the fossil record, the discovery of the dissorophoid temnospondyl Gerobatrachus from the Early Permian in Texas in 2008 provided a missing link with many of the characteristics of modern frogs.
ðɛɹˌɑːɹ lˈɑːɹdʒ ɡˈæps ɪnðə fˈɑːsəl ɹˈɛkɚd, ðə dɪskˈʌvɚɹi ʌvðə dɪsˈoːɹəfˌɔɪd tˈɛmnəspˌɑːndɪl dʒˈɛɹəbˌætɹækəs fɹʌmðɪ ˈɜːli pˈɜːmiən ɪn tˈɛksəs ɪn tˈuː θˈaʊzənd ˈeɪt pɹəvˈaɪdᵻd ɐ mˈɪsɪŋ lˈɪŋk wɪð mˈɛnɪəv ðə kˌæɹɪktɚɹˈɪstɪks ʌv mˈɑːdɚn fɹˈɑːɡz.