DOI: 10.25625/8plfns/63a7gq
title: Arp-et-al-2021-Toarcian-Ludwigskanal-Fig-15-Ammonites.jpg

description: Figure 15. 1. Pleurolytoceras wrighti (Buckman), bed 27, Aalensis Subzone, Jurensismergel Formation. This species has previously been assigned to Pachylytoceras Buckman 1905, which is a junior subjective synonym of Pleurolytoceras Hyatt 1900 (Hoffmann 2010, 2015). GZG.INV.70540: d = 44 mm, di = 27 mm, u = 14 mm, wh = 19 mm, wb = 15.5 mm, rb/2 = 19. 2. Pleurolytoceras hircinum (Schlotheim), bed 27, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70541: d = 27 mm, di = 18 mm, u = 10 mm, wh = 10.5 mm, wb = 10 mm, constr/2 = 6. 3. Cotteswoldia mactra (Dumortier), bed 25, Mactra Subzone, Jurensismergel Formation. GZG.INV.70542; d = 29 mm, di = 20 mm, u = 10 mm, wh = 11 mm, wb = 7 mm, rb/2 = 35. 4. Pseudolioceras beyrichi (Schloenbach), 1 cm below top of bed 28, Aalensis Subzone, Jurensismergel Formation. GZG.INV.45644: d = 34 mm, di = 21 mm, u = 6 mm, wh = 17.5 mm, wb = 10 mm, rb/2 = 15; (leg. Sebastian Demmel). 5. Paradumortieria cf. tectiforme Elmi and Caloo-Fortier, 45 cm below top of bed 24, Pseudoradiosa Subzone, Jurensismergel Formation. GZG.INV.70543: d = 32 mm, di = 23 mm, u = 13 mm, wh = 11 mm, wb = 7.5 mm; rb/2 = 20. 6. Cotteswoldia aalensis (Zieten), bed 27, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70544: d = 46 mm, di = 31 mm, u = 16 mm, wh = 18 mm, wb = 9.5 mm, rb/2 = 19. 7. Dumortieria externicostata (Branco), 30 cm below top of bed 26, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70545: d = 21 mm, di = 14 mm, u = 7.5 mm, wh = 8 mm, wb = 8 mm, rb/2 = 10. 8. Dumortieria costula (Reinecke), 30 cm below top of bed 26, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70546: d = 36 mm, di = 26 mm, u = 12 mm, wh = 14 mm, wb = 9.5 mm, rb/2 = 11. 9. Pleydellia distans (Buckman), bed 27, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70547: d = 22 mm, di = 15 mm, u = 8 mm, wh = 8 mm, wb = 6.5 mm, rb/2 = 11. 10. Dumortieria moorei (Lycett), 40 cm below top of bed 24, Pseudoradiosa Subzone, Jurensismergel Formation. GZG.INV.70548: d = 38 mm, di = 27 mm, u = 15 mm, wh = 13 mm, wb = (7 mm), rb/2 = 62. 11. Dumortieria cf. kochi Benecke, 40 cm below top of bed 24, Pseudoradiosa Subzone, Jurensismergel Formation. GZG.INV.70549: d = 37 mm, di = (27 mm), u = 14 mm, wh = 13 mm, wb = n.a., rb/2 = 17. 12. Pleydellia subcompta (Branco), 35 cm below top of bed 26, basis of Aalensis Subzone, Jurensismergel Formation. GZG.INV.70550: d = 44 mm, di = 29 mm, u = 16 mm, wh = 17 mm, wb = 9 mm, rb/2 = 30. 13. Pleydellia costulata (Zieten), 1 cm below bed 28, Aalensis Subzone, Jurensismergel Formation. GZG.INV.70551: d = 39 mm, di = 26 mm, u = 11.5 mm, wh = 16.5 mm, wb = 9 mm, rb/2 = 12. 14. Pleurolytoceras torulosum (Schübler in Zieten), bed 33, Torulosum Subzone, Opalinuston Formation. This species has previously been assigned to Pachylytoceras Buckman 1905, which is a junior subjective synonym of Pleurolytoceras Hyatt 1900 (Hoffmann 2010, 2015). GZG.INV.70552a: d = 40 mm, di = (29 mm), u = 12 mm, wh = 16 mm, wb = n.a., cstr/2 = 20. 15. Cotteswoldia lotharingica (Branco), bed 33, Torulosum Subzone, Opalinuston For-mation. GZG.INV.70553: d = 84 mm; di = 60 mm, u = 32 mm, wh = 28 mm, wb = n.a., rb/2 = (48). 16. Pleydellia buckmani Maubeuge, bed 33, Torulosum Subzone, Opalinuston Formation. GZG.INV.70554; d = (55 mm), di = n.a., u = 18 mm, wh = 26 mm, wb = n.a., rb/2 = n.a. 17. Pleydellia cf. falcifer Maubeuge, bed 33, Torulosum Subzone, Opalinuston Formation. GZG.INV.70552b: d = 40 mm, di = (27 mm), u = 12 mm, wh = 17 mm, wb = n.a., rb/2 = 20.