THE ULTRASTRUCTURE OF TRISACCITES POLLEN FROM THE CRETACEOUS OF SOUTHERN ARGENTINA

被引：15

作者：

BALDONI, AM ^{[1
]}

TAYLOR, TN ^{[1
]}

机构：

[1] OHIO STATE UNIV, DEPT BOT, COLUMBUS, OH 43210 USA

来源：

REVIEW OF PALAEOBOTANY AND PALYNOLOGY | 1982年 / 38卷 / 1-2期

关键词：

D O I：

10.1016/0034-6667(82)90048-3

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Compressed cones of the podocarpaceous taxon Trisacocladus tigrensis Archangelsky collected from the Baquero Formation (Santa Cruz Province, Argentina) contain both immature and mature pollen of the Trisaccites-type. Grains are circular to subtriangular, trisaccate and range to .apprx. 35 .mu.m in diameter. The sporoderm is 3-parted consisting of an outer columnar ectosexine and inner alveolar endosexine; a delicate, non-lamellate nexine is present. Features of the sporoderm are described and compared with those of extant and other fossil podocarpaceous pollen grains preserved in situ.

引用

页码：23 / 33

页数：11

共 22 条

[1]

[Anonymous], 1977, PALAEONTOGRAPHICA

[2]

[Anonymous], 1965, INTRO PALYNOLOGY

[3]

ARCHANGELSKY S., 1966, GEOL, V13, P259

[4]

AUDRAN J-C, 1970, Pollen et Spores, V12, P485

[5]

COOKSON ISABEL C, 1954, AUSTRALIAN JOUR BOT, V2, P60, DOI 10.1071/BT9540060

[6]

Gamerro J. C., 1965, AMEGHINIANA, V<bold>4</bold>, P31

[7]

GRAUVOGEL-STAMM L, 1973, Geobios (Villeurbanne), V6, P101, DOI 10.1016/S0016-6995(73)80001-4

[8]

GRAUVOGEL-STAMM L, 1979, Senckenbergiana Lethaea, V60, P1

[9]

GULLVAG BARBRO M., 1966, GRANA PALYNOL, V6, P435

[10]

MILDENHALL DC, 1978, J ROY SOC NEW ZEAL, V8, P253

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