Fig. 3
Bolboforma and Charophyta from the studied boreholes. 1 Bolboforma latdorfensis (Allschwil-2, A-17), 2 Bolboforma irregularis (Allschwil-2, A-17; MHNF 31427), 3 “Chara” sp. 1 (DP-202, W-2; MHNF 31466), 4, 5 cf. Lamprothamnium sp. (DP-202, W14; 4: MHNF 31450; 5: MHNF 31451), 6 Hornichara lagenalis (Allschwil-2, A-20a; MHNF 31460), 7–9 Nitellopsis (Tectochara) meriani group (7: DP-202, W-2, MHNF 31463; 8: A-22, W-14, MHNF 31461; 9: DP-202, W-2, MHNF 31454), 10 Sphaerochara hirmeri group (Allschwil-2, A-22; MHNF 31462), 11, 12 Lychnothamnus (Rhabdochara) stockmansii-major group (DP-202, W-2; 11: MHNF 31455; 12: MHNF 31465)