. Bulletin of the Natural Histort Museum. Geology series. PALYNOLOGICAL ZONATION OF MID-PALAEOZOIC, NW SPAIN 133. I - â ^ â « ^ ^ ? 5 â " ;: __ (^ .2 i fe -a §1 a = 5 .i 1 I Red Sandstones ^ Dolomites 2 Limestones Ivl Quartzites â i-'Phosphatic nodules / clasts p] Sandstone â Shale Q Sandstone & Shale â Sandstone / Oolites H Ferrous Oolites 5 15 ^ 15 S S S -a: t £ 5 â § â ?=â «"§ 3 -g ^ O'o'-^^C'o-^O 00 5 5 5; 5; Q- S tc 2 ⢠⢠⢠- ⢠⢠⢠- T I - ⢠⢠⢠- - - ⢠⢠⢠⢠- - - - ⢠⢠⢠⢠- Chitinozoan Spore Zonation Zonation 9 9 LP20 Lochkov. LP19 (a) LP 18 ele EC
. Bulletin of the Natural Histort Museum. Geology series. PALYNOLOGICAL ZONATION OF MID-PALAEOZOIC, NW SPAIN 133. I - â ^ â « ^ ^ ? 5 â " ;: __ (^ .2 i fe -a §1 a = 5 .i 1 I Red Sandstones ^ Dolomites 2 Limestones Ivl Quartzites â i-'Phosphatic nodules / clasts p] Sandstone â Shale Q Sandstone & Shale â Sandstone / Oolites H Ferrous Oolites 5 15 ^ 15 S S S -a: t £ 5 â § â ?=â «"§ 3 -g ^ O'o'-^^C'o-^O 00 5 5 5; 5; Q- S tc 2 ⢠⢠⢠- ⢠⢠⢠- T I - ⢠⢠⢠- - - ⢠⢠⢠⢠- - - - ⢠⢠⢠⢠- Chitinozoan Spore Zonation Zonation 9 9 LP20 Lochkov. LP19 (a) LP 18 ele EC LP17 LP16 LP15 LP14 Pridoli LP13 H LP12 â 'ko Pridoli LPII LP 10 LP9 LPS -?-?. ?ba RS LP7 â¢^ph -9_9_ LP6 â '(â 1 * LP5 Ludlow Ludford. â â LP4 â 'ly Gorst. BV LP3 9 9 â .'pa LP2 V LPl Wenlock/ Lland. Fig. 13 Selected chitinozoan distribution at La PeraL Chitinozoan zonation after Verniers et al (1995): ele: elegans, ko: kosovensis. ba: barrandei. ph: philipi, el: elongata, ly: lycoperdoides, pa: pachycephala. Verniers et al. (1995). Not until LP16, metres above base of section, is a Pfi'doli chitinozoan assemblage containing U. urna. M. elegans and P. carmenchui, recovered. Fimgochitina kosovensis Paris & Kriz (1984), is found in LP 19, 169 meters above the base of the section (PL 12, fig. 7) but is more commonly described from the Lower- mid-Pfidoli (Paris & Kriz, 1984, Verniers et al., 1995). The uppermost sample LP 20 at La Peral contains Urnachitina urna (PI. 11, fig. 10) associated with Pseudoclathrochitina cannenchiii (PI. 12, fig. 2). As with La Vid, chitinozoan evidence for a Pfidoli age contradicts the interpretation based on spore data, which places the base of the Lochkovian between LP 18 and 19 from the presence of Aneurospora in LP 19. Stage and Series boundaries It is not possible to suggest a base for the Devonian on the basis of the chitinozoans recovered from this section. The base o
Size: 925px × 2702px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bhlconsortium, bookcollectionbiodiversity, bookcontributornatura