Two poorly known trigonotarbids (Arachnida: Trigonotarbida),Eophrynus scharftScharf, 1924 andEophrynus ilfeldicusScharf, 1924 from the Lower Permian (Asselian) Ilfeld Basin in the Harz Region of Germany are redescribed. The latter is transferred to the genusAphantomartusPocock, 1911. The former resembles members of Lissomartidae, but given its incompleteness it is assigned here to Trigonotarbida incertae sedis. A phalangiotarbid (Arachnida: Phalangiotarbida) from Ilfeld described asOpiliotarbus elongatus (Scudder, 1890) represents the youngest record of this group. With respect to the genusOpiliotarbusPocock, 1910,Architarbus hoffmanniGuthorl, 1934 — one of three names erected for a lost specimen from the Upper Carboniferous of the Saar region of Germany — represents the senior synonym ofOpiliotarbus kliveriWaterlot, 1934 andGoniotarbus sararmGuthorl, 1965. The Lower Permian fossilRhabdotarachnoides simoni Haupt, 1957 from the Rotliegend of the Thuringian Forest Basin, Germany was described as an arachnid and tentatively referred to Opiliones. Since it is identified here as a coalified plant remain, this species is regarded as nomen dubium.