Text-fig. 4. Patelliconus primulus (BARRANDE in PERNER, 1903). Specimen MHBR 2418, revultex impression. A – apical view showing the early shell and earliest stages of teleoconch. Note patches of shell with irregular incremental structures; B – left lateral view; C – oblique left apicolateral view showing finely ribbed early shell and patches of shell in earliest stages of teleoconch, all ×....... Šárka F., Osek near Rokycany. in Patelliconus Horný, 1961 And Mytoconula Gen. N. (Mollusca, Tergomya) From The Ordovician Of Perunica

Text-fig. 4. Patelliconus primulus (BARRANDE in PERNER, 1903). Specimen MHBR 2418, revultex impression. A – apical view showing the early shell and earliest stages of teleoconch. Note patches of shell with irregular incremental structures; B – left lateral view; C – oblique left apicolateral view showing finely ribbed early shell and patches of shell in earliest stages of teleoconch, all ×....... Šárka F., Osek near Rokycany.