New Insights on the systematic classification of certain palynological taxa (tintinnomorphs) from Holocene deposits of the Coastal Plain of Southern Brazil

Silva, Wagner Guimarães da; Souza, Paulo Alves de; Waveren, I. Van

doi:10.4072/rbp.2017.3.04

Cited by 5 publications

(1 citation statement)

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“…The shape of the lorica is species specific. However, there are considerable intraspecific morphological variations related to the life cycle stages of these ciliates [70].…”

Section: Tintinnomorphsmentioning

confidence: 99%

Source and Distribution of Palynomorphs in Southern Red Sea Coastal Environments of Saudi Arabia; Their Palaeoenvironmental and Palaeoecological Inferences

Kumar

2024

Preprint

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Palynomorph assemblages and mineral microfossils from five southern Red Sea coastal environments were studied to demonstrate their distribution pattern and suggest their source. The environments studied were 1. mangrove swamp 2. middle Holocene paleochannel 3. algal mat, 4. Sabia Island coral reef, and intertidal zone. The samples studied were from the top 3 cm semi-consolidated sediments from various environments. Standard palynological maceration technique was used to isolate palynomorphs. These sediment samples are mainly clay and fine sand and yielded low numbers but high diversity of palynomorph assemblages. They are grouped into pollen and spores, dinoflagellate cysts, and algal remains, fungal spores, hyphae and fruit bodies, protists, and invertebrates. A few Ascidian and sponge spicules, and phytoliths (mineral microfossils) occur in the Sabia Island coral reef environment. The protists and invertebrate remain include microforaminifera, thecamoebians, tintinnomorphs, crustacean and annelid palynomorphs. The assemblage also includes six form taxa belonging to the form genera Katora and Mangrovia. These palynomorphs belong to both marine and terrestrial environments and are of autochthonous and allochthonous origins. The source and genetic relationship of each palynomorphs is discussed.

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“…The shape of the lorica is species specific. However, there are considerable intraspecific morphological variations related to the life cycle stages of these ciliates [70].…”

Section: Tintinnomorphsmentioning

confidence: 99%