Newsletters on Stratigraphy, Vol. 52/1 (2019), 73–96 Article Published online July 2018; published in print January 2019 The Middle Jurassic palynostratigraphy of the northern Lusitanian Basin, Portugal Vânia F. Correia1, 2*, James B. Riding3, Maria Helena Henriques4, Paulo Fernandes1, Zélia Pereira2 and Nickolas J. Wiggan3, 5 With 7 figures and 3 plates Abstract. M ! " # " $ %&' ( Qyrqryyvh hhyrv avthtvpr h vtht$ ) * + + $ ) + # , #- # ,#-) . + $ * + /0 + + $ " #+ ! * M 2 &% + ( $ . + ) " ) Ihpr hv$+ 3 + $ ) " Xvpuryyvh yhrvpyh ( " + 3 + $ ) ) + . M $ ) ) ! ) + + ) 4 " $ 5 4+ ,654- ) 6) ) " + $7 654 + ) + $ + ) 8 $ + ) ) ) ! $ + # " + + ) ) $ ) 9vvyvqvv tvthr ! $ + ) $ " 8hyyvhyh vr" + ) $ Key words. " ) " "! " " " Authors’ addresses: 1 9 : M :+ " < + + " "0==>6%?'* "# 2 !@4 "A "BB/>6'/>$ :) "# 3 + "4+ "C "@ @ %&> "<C 4 D )4 "* ) "< + ) "A + ! "?=?=6F'= "# 5 D )4 "< + ) "D " &?4G"<C * 9+ $ H $ © 2018 Gebrüder Borntraeger, Stuttgart, Germany www-borntraeger-cramer.de DOI: 10.1127/nos/2018/0471 0078-0421/2019/0471 $ 6.00 74 V. F. Correia et al. 1. Introduction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eographical and geological + 6 setting ) ! $7 + " + D + ,%'0>-" ! $,%''%-" $,%'''- ( )# 2 @46N ,&==?-$ ?==3 %>=3 D + ,%'0>- ) 6 ,* $%-$ ) >3 32 ) ) ) ! < ) OM< , 5) - " # ! ,N M . ! $7 + " $%'0'-$ 3)# ) ! " ) @ + ) 3 " 6 ! + ,A 6 ) ! 6 $%''0"C $&=%?-$ $5) " + + + ! " M . ,D + %'0>" ) $ 0" '-$ D ) $ ,%''%- + + * *( ,* $ %" &-$ ) )&% ) 6 * " + ,Hhp pr + $ # ) uhyvr ur rv ( M - ) . " # ) $ ( ,&==?- * ,# + 4 $,%'''-$ ) 3 %''F" * (6! ( $ &==' " -$ + 5) # " >== ) ) The Middle Jurassic palynostratigraphy of the northern Lusitanian Basin 75 Lithostratigraphy of the Lusitanian Basin W E Ammonite Ammonite sub-biozones Cabo Mondego São Gião (where recognised) Stage biozones section section Substage Morphoceras Zigzagiceras macrescens zigzag Morphoceras Lower Lower parvum BATHONIAN Parkinsonia ? parkinsoni Garantiana garantiana Upper Strenoceras niortense Stephanoceras humphriesianum ANÇÃ BAJOCIAN Sonninia propinquans FORMATION Lower Lower Witchellia laeviuscula Hyperlioceras ? discites Graphoceras Graphoceras limitatum concavum Graphoceras Upper concavum Brasilia Fig. 1. ! " < Brasilia gigantea bradfordensis Brasilia ! ) # " .) Middle bradfordensis ) AALENIAN Leioceras Leioceras comptum $ ) opalinum Leioceras CABO MONDEGO FORMATION * *( B=%&R%$&/RR@20>BR%=$BRRN$ Lower opalinum Pleydellia FORMATION ) Pleydellia aalensis 2 aalensis Pleydellia Upper mactra LOMBA DA PÓVOA # ,#- B=%%R%F$%%RR@20>BR?&$%FRR TOARCIAN N$ " ) + " Fig. 2. 6 B=%0R%&$/?RR@20?FR%F$>0RRN$ ) ) ) * ,&=='- C $,&=%?-$ ! " # ( $ ,&==?-$ ) #+ ! ) ) ) 8 6 $ $: ) ,( $&==?-$ + ) + ) 6 3. Material and methods ) , $$ 7 I %''>" * (6! ( $ &==/" + $ &=%&-$ #+ ! $ PF ! * $ ) 6 3 )* *( PB=3 ) %= ?= 3" " >3 6 3 ) $ ) + ,* $%-$ 7 " %&' + ) ) * ,* $&"( $&==?-$ ) 76 V. F. Correia et al. 1 2 3 4 5 6 7 8 9 10 11 12 The Middle Jurassic palynostratigraphy of the northern Lusitanian Basin 77 Qyrqryyvh hhyrv ( ,- 4. Palynology avthtvpr h vtht ,* $ &M>-$ : " ) ) * " + + $ . T rpr h v rr Bh hvhh ) * $ %" & th hvhh " ,* $?"B- % &$ ) 6 # %M?$ $ " M ) #+ ! * + + ) ,* $>-$ " " ) 6 $ I ,A N &==0-" ) $ 4.1. The uppermost Toarcian to lower %>3 + Bajocian part of the Cabo Mondego ) Formation at Cabo Mondego (samples ) $:) " ?== M2 to AB192) $7 + " ) " ) : ) 6 $ " I "/0 , & %'&-" " ) ) * $ # %"&"? )!@4 . #" ,# + -" Qyrqryyvh hhyrv Truhpr h u :) "# $ u vrvh ,* $ &" ?-$ 6 + " + ) ( + ) , %-$ Plate 1. ) ) ! , . -) ! " # $ )!@4 ,# + -"$ :) "# $ " 4 * + $ &=3$ 3 $ ) .