Fossil oculata pollen from Alaska
- 1 August 1976
- journal article
- research article
- Published by Taylor & Francis in Geoscience and Man
- Vol. 15 (1) , 51-76
- https://doi.org/10.1080/00721395.1976.9989773
Abstract
Fossil pollen of the morphological type “oculata” have been encountered in sediments of Upper Cretaceous and Palaeocene age in Alaska. These Alaskan assemblages contain most of the species described by other authors in the United States, Canada, and the USSR. In addition, several new Alaskan species have been encountered. These taxa are evaluated here morphologically and biostratigraphically, with particular reference to pollen wall and aperture morphology, the Campanian‐Maastrichtian and Maastrichtian‐Palaeocene age boundaries, and regional distribution. All species are allocated to the genera Azonia Samoilovitch 1961, Wodehouseia Stanley 1961, and Singularia Samoilovitch 1961; and the genus Azonia is emended. Ten new species of Azonia and Wodehouseia are described: Azonia cribrata, A. parva, A. sufflata, Wodehouseia avita, W. bella, W. capil‐lata, W. edmontonicola, W. octospina, W. quad‐rispina, and W, vestivirgata. Three new subspecies are described: Azonia fabacea subsp. reticulata, A. fabacea subsp. rugulosa, and Wodehouseia fimbriata subsp. constricta. Seven new combinations are made also: Azonia calvata (Samoilovitch), A. hirsuta (Samoilovitch), A. jacutense (Samoilovitch), A, ob‐liquus (Chlonova), Wodehouseia asper (Samoilovitch), W. excelsa (Samoilovitch), and W. elegans (Samoilovitch).Keywords
This publication has 13 references indexed in Scilit:
- Climatic changes in eastern Asia as indicated by fossil floras. II. Late cretaceous and DanianPalaeogeography, Palaeoclimatology, Palaeoecology, 1975
- MaestrichtianAquilapollenitesin texas, Maryland, and New JerseyGeoscience and Man, 1973
- Pollen biostratigraphy and paleoecology of the Edmonton Formation (Maestrichtian), Alberta, CanadaPalaeogeography, Palaeoclimatology, Palaeoecology, 1970
- Pollen genus Wodehousea and its stratigraphic significance in the Edmonton Formation (Maestrichtian), Alberta, CanadaCanadian Journal of Earth Sciences, 1969
- Possible botanical relationships of the pollen of the morphological type “oculata”Review of Palaeobotany and Palynology, 1967
- Palynological studies on Late Cretaceous-Palaeogene floral history and stratigraphyReview of Palaeobotany and Palynology, 1967
- Tentative botanico-geographical subdivision of northern Asia in Late Cretaceous timeReview of Palaeobotany and Palynology, 1967
- The problem of the Tsagaiansk flora with regard to spore-and-pollen analytical dataReview of Palaeobotany and Palynology, 1967
- Guide sporomorphae in the upper cretaceous-lower tertiary of eastern Montana (U.S.A.)Review of Palaeobotany and Palynology, 1967
- The problem of reworked pollen and spores in marine sedimentsMarine Geology, 1966