Normapolles pollen from the Mississippi embayment

___________________ Introduction _________________ Previous reports, North American __ Taxonomic reports ________ Nontaxonomic references _____ Acknowledgments ___________ Methods ___________________ Fossil pollen sample localities _______ Type specimens _______________ Systematic descriptions ___________ Genus Basopollis ____________ Basopollis obscurocostatus, n. sp Genus Choanopollenites ________ cf. Choanopollenites sp ______ Genus Complexiopollis _________ Genus Extremipollis __________ Extremipollis vivus, n. sp ____ Extremipollis versatilis, n. sp __ Extremipollis caminus, n. sp __ Genus Interpollis ____________ Interpollis cf. /. supplingensis __ Interpollis microsupplingensis __ Interpollis intranodus, n. sp ___ Genus Interporopollenites _______ __________ 9 -----____ 9 __________ 9 10 ________ 10 __________ 11 __________ 11 12 _________ 12 __________ 12 Interporopollenites turgidus, n. sp __________ 13 Genus Kyandopollenites ___________________ 13 Kyandopollenites anneratus ______________ 13 Genus Megatriopollis ____________________ 13 Megatriopollisl sp ____________________ 14 Genus Minorpollis ______________________ 14 Minorpollis minimus __________________ 14 Minorpollis aff. M. minimus _____________ 14 Genus Nudopollis ______________________ 15 Nudopollis endangulatus ________________ 15 Nudopollis aff. N. endangulatus ___________ 15 Nudopollis terminalis __________________ 15 Nudopollis terminalis subsp. hastaformis ______ 15 Nudopollis terminalis subsp. hebeformis _______ 15 Nudopollis aff. N. terminalis _____________ 16 Nudopollis thiergartii ___________________ 16 Nudopollis thiergartii subsp. rneridium _______ 16 Nudopollis thiergartii subsp. conspicuus _______ 16 Nudopollis thiergartii subsp. minutus ________ 16 Nudopollis aff. N. thiergartii _____________ 16 Genus Pecakipollis ______________________ 16 cf. Pecakipollis sp ____________________ 16 Genus Plicapollis _______________________ 17 Plicapollis usitatus, n. sp _______________ 17 Plicapollis retusus, n. sp ________________ 18 Plicapollis vacuus, n. sp ________________ 18 Page Systematic descriptions Continued Genus Plicapollis Continued Plicapollis rusticus, n. sp _______________ 18 Genus Pompeckjoidaepollenites ______________ 19 Pompeckjoidaepollenites aff. P. subhercynicus ___ 19 Genus Oculopollis ______________________ 20 Genus Pseudoculopollis ___________________ 20 Pseudoculopollis admirabilis, n. sp __________ 20 Pseudoculopollis sp. A _________________ 20 Genus Semioculopollis ____________________ 21 Semioculopollis sp. A __________________ 21 Genus Pseudoplicapollis ___________________ 21 Pseudoplicapollis endocuspis, n. sp __________ 22 Pseudoplicapollis serenus, n. sp ____________ 22 Pseudoplicapollis sp. A_________________ 22 Genus Pseudovacuopollis __________________ 23 Pseudovacuopollis involutus, n. sp __________ 23 Genus Thomsonipollis ____________________ 24 Thomsonipollis magnificus _______________ 24 Thomsonipollis magnificoides _____________ 24 Thomsonipollis aff. T. magnificoides _________ 24 Thomsonipollis expolitus, n. sp ____________ 25 Genus Trudopollis ______________________ 25 Trudopollis variabilis, n. sp _____________ 25 Trudopollis plenus, n. sp ________________ 26 Trudopollis cf. T. artifex ________________ 26 Trudopollis sp. A ____________________ 27 Trudopollis sp. B ____________________ 27 Trudopollis sp. C ____________________ 28 Genus Vacuopollis ______________________ 28 Vacuopollis munitus, n. sp _______________ 28 Genus Osculapollis, n. gen _________________ 29 Osculapollis aequalis, n. sp ______________ 29 Osculapollis perspectus, n. sp _____________ 29 Osculapollis sp. A ____________________ 30 Genus Praecursipollis, n. gen ________________ 30 Praecursipollis plebius, n. sp _____________ 30 Genus Pseudatlantopollis, n. gen ______________ 30 Pseudatlantopollis simulatus, n. sp __________ 31 Genus Endoinfundibulapollis, n. gen ___________ 31 Endoinfundibulapollis distinctus, n. sp _______ 31 New genus A _________________________ 32 New genus B _________________________ 32 New genus C _________________________ 32 New genus D _________________________ 33 Key to Mississippi embayment Normapolles genera _____ 33 Stratigraphic distribution of Normapolles genera _______ 35 Stratigraphic distribution of Normapolles species ______ 37 References _____________________________ 39 Index ______ ____ ____ _____ ____ ___ 41

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