Illustrated Pollen Terminology – 2018

Authors: Heidemarie Halbritter, Silvia Ulrich, Friðgeir Grímsson, Martina Weber, Reinhard Zetter, Michael Hesse, Ralf Buchner, Matthias Svojtka, Andrea Frosch-Radivo This book provides a fully illustrated compendium of key terms and basic principles in the field of palynology, making it an indispensable tool for all palynologists. It is a revised and extended edition of “Pollen Terminology. [...]

By | February 25th, 2019|Publications|0 Comments

A Winteraceae pollen tetrad from the early Paleocene of western Greenland, and the fossil record of Winteraceae in Laurasia and Gondwana – 2018

Authors: Friðgeir Grímsson, Guido W. Grimm, Alastair J. Potts, Reinhard Zetter, Susanne S. Renner Winteraceae comprise c. 130 species in seven genera, with the greatest species diversity in the Pacific (Pseudowintera, Zygogynum), Australia (Bubbia, Tasmannia), New Guinea (Belliolum, Bubbia, Zygogynum, Tasmannia) and Madagascar (Takhtajania). Only Drimysoccurs in South America. Because of their Cretaceous leaves, wood [...]

By | February 23rd, 2019|Publications|0 Comments

The first Loranthaceae fossils from Africa – 2018

Authors: Friðgeir Grímsson, Alexandros Xafis, Frank H. Neumann, Louis Scott, Marion K. Bamford, Reinhard Zetter An ongoing re-investigation of the early Miocene Saldanha Bay (South Africa) palynoflora, using combined light andscanning electron microscopy (single grain method), is revealing several pollen types new to the African fossil record. One ofthe elements identified is Loranthaceae pollen. These [...]

By | February 22nd, 2019|Publications|0 Comments

Evolution of pollen morphology in Loranthaceae – 2018

Authors: Friðgeir Grímsson, Guido W. Grimm, Reinhard Zetter Earlier studies indicate a strong correlation of pollen morphology and ultrastructure with taxonomy in Loranthaceae. Using high-resolution light microscopy and scanning electron microscopy imaging of the same pollen grains, we document pollen types of 35 genera including 15 studied for the first time. Using a molecular phylogenetic [...]

By | February 21st, 2019|Publications|0 Comments

Pollen morphology of extant Winteraceae: a study allowing SEM-based affiliation of its fossil representatives – 2017

Authors: Friðgeir Grímsson, Alexandros Xafis, Frank H. Neumann, Reinhard Zetter When applying high-resolution microscopy, the pollen morphology of extant taxa can be used to classify fossil pollen, that is, to address the latter in the established systematic-phylogenetic framework. Here we investigate tetrads and pollen features of 20 different Winteraceae species, most of them belonging to [...]

By | February 11th, 2019|Publications|0 Comments

Bibionidae (Diptera) from the late Miocene of Hrútagil (Mókollsdalur), Iceland – 2017

Authors: John Skartveit, Friðgeir Grímsson, Torsten Wappler Here we describe fossil Bibionidae (Diptera) insects from the late Miocene Hrútagil locality (part of the 9–8 Ma Skarðsströnd–Mókollsdalur formation) in Iceland. This material offers a rare chance to study a fossil insect fauna from a North Atlantic oceanic island. The material includes three species, one from each [...]

By | July 1st, 2017|Publications|0 Comments

Tiny pollen grains: first evidence of Saururaceae from the Late Cretaceous of western North America – 2017

Authors: Friðgeir Grímsson, Guido W. Grimm, Reinhard Zetter Background. The Saururaceae, a very small family of Piperales comprising only six species in four genera, have a relatively scanty fossil record outside of Europe. The phylogenetic relationships of the four genera to each other are resolved, with the type genus Saururus occurring in both eastern North [...]

By | June 13th, 2017|Publications|0 Comments

Eocene Loranthaceae pollen pushes back divergence ages for major splits in the family – 2017

Authors: Friðgeir Grímsson, Paschalia Kapli, Christa-Charlotte Hofmann, Reinhard Zetter, Guido W. Grimm Background: We revisit the palaeopalynological record of Loranthaceae, using pollen ornamentation to discriminate lineages and to test molecular dating estimates for the diversification of major lineages. Methods: Fossil Loranthaceae pollen from the Eocene and Oligocene are analysed and documented using scanning-electron microscopy. These [...]

By | June 13th, 2017|Publications|0 Comments

Miocene palynofloras of the Tınaz lignite mine, Muğla, southwest Anatolia: Taxonomy, palaeoecology and local vegetation change – 2017

Authors: Johannes M. Bouchal, Serdar Mayda, Reinhard Zetter, Friðgeir Grímsson, Funda Akgün, Thomas Denk Middle Miocene deposits belonging to the Eskihisar Formation exposed at the Tınaz lignite mine, Yatağan Basin, Muğla, southwestern Turkey, were investigated palynologically. Nine spores, aplanospores/zygospores and cysts of fungi and algae, seven moss and fern spores, 12 gymnosperm pollen types, and [...]

By | April 14th, 2017|Publications|0 Comments

Taxonomy and palaeoecology of two widespread western Eurasian Neogene sclerophyllous oak species: Quercus drymeja Unger and Q. mediterranea Unger – 2017

Authors: Thomas Denk, Dimitrios Velitzelos, Tuncay H. Güner, Johannes M. Bouchal, Friðgeir Grímsson, Guido W. Grimm Sclerophyllous oaks (genus Quercus) play important roles in Neogene ecosystems of south-western Eurasia. Modern analogues (‘nearest living relatives’) for these oaks have been sought among five of six infrageneric lineages of Quercus, distributed across the entire Northern Hemisphere. A [...]

By | March 21st, 2017|Publications|0 Comments