2015
DOI: 10.17581/bp.2015.04211
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Bisaccate Pollen of Probable Gnetalean Species and Pollen Diversity in Gnetophytes

Abstract: The exine ultrastructure of Dinophyton spinosum (Upper Triassic, USA), Preflosella nathania, and Alisporites alimentosus (Lower Cretaceous, Russia) has been studied. Pollen grains were extracted from reproductive organs of Dinophyton spinosum and Preflosella nathania; pollen grains of Alisporites alimentosus are from the guts of a fossil insect. Dinophyton and Preflosella are attributed to gnetophytes, Alisporites alimentosus pollen grains were supposed to be produced by Preflosella plant.The infratectum is al… Show more

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“…Previous work on pollen grains extracted from fossil insects (e.g., Krassilov and Rasnitsyn, 1997 ; Krassilov et al., 1999 , 2003 , 2007 ; Tekleva 2015 ) have not provided any detailed accounts on how to observe, extract, or investigate the pollen. This protocol provides clear written instructions and supportive illustrations enabling scientists to successfully extract and analyze fossil pollen from the exoskeleton or internal organs of fossil insects.…”
Section: Expected Outcomesmentioning
confidence: 99%
“…Previous work on pollen grains extracted from fossil insects (e.g., Krassilov and Rasnitsyn, 1997 ; Krassilov et al., 1999 , 2003 , 2007 ; Tekleva 2015 ) have not provided any detailed accounts on how to observe, extract, or investigate the pollen. This protocol provides clear written instructions and supportive illustrations enabling scientists to successfully extract and analyze fossil pollen from the exoskeleton or internal organs of fossil insects.…”
Section: Expected Outcomesmentioning
confidence: 99%