Combined LM and SEM study of the middle Miocene (Sarmatian) palynoflora from the Lavanttal Basin, Austria: Part V. Magnoliophyta 3 - Myrtales to Ericales [0.03%]
奥地利拉万特盆地中Miocene（萨尔玛提亚阶段）孢粉植物区系的联合层序地层和孢粉学研究第五部分：被子植物门III--myrtalese-ricales
Friđgeir Grímsson,Johannes M Bouchal,Alexandros Xafis et al.
Friđgeir Grímsson et al.
The continued investigation of the middle Miocene palynoflora from the Lavanttal Basin reveals numerous additional angiosperm taxa. The Myrtales to Ericales pollen record documented here comprises 46 different taxa belonging to Onagraceae (...
Silvia Ulrich,Friđgeir Grímsson
Silvia Ulrich
An advanced protocol to prepare single extant and fossil pollen grains for transmission electron microscopy (TEM) analysis allows for the fast recovery of data on the ultrastructure of pollen/spores. The protocol is easy to apply and less t...
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography [0.03%]
非洲印度萝藦亚科的起源与分化：花粉形态、传播方式、化石记录、分子年代学及古地理学的综合研究
Friðgeir Grímsson,Shirley A Graham,Mario Coiro et al.
Friðgeir Grímsson et al.
The pantropical Picrodendraceae produce mostly spheroidal to slightly oblate, echinate pollen grains equipped with narrow circular to elliptic pori that can be hard to identify to family level in both extant and fossil material using light ...
Friðgeir Grímsson,Johan L C H van Valkenburg,Jan J Wieringa et al.
Friðgeir Grímsson et al.
Three currently accepted Sclerosperma species appear to produce four different pollen morphologies. Sclerosperma mannii and S. walkeri pollen share the same distinct reticulate sculpture, but S. profizianum produces three different pollen t...
Sclerosperma fossils from the late Oligocene of Chilga, north-western Ethiopia [0.03%]
埃塞俄比亚西北部齐尔加晚渐新世齿肋果化石
Friðgeir Grímsson,Bonnie F Jacobs,Johan L C H Van Valkenburg et al.
Friðgeir Grímsson et al.
The palm family, Arecaceae, is notoriously depauperate in Africa today, and its evolutionary, paleobiogeographic, and extinction history there are not well documented by fossils. In this article we report the pollen of two new extinct speci...
Friðgeir Grímsson,Alexandros Xafis,Frank H Neumann et al.
Friðgeir Grímsson et al.
An ongoing re-investigation of the early Miocene Saldanha Bay (South Africa) palynoflora, using combined light and scanning electron microscopy (single grain method), is revealing several pollen types new to the African fossil record. One o...
Friðgeir Grímsson,Guido W Grimm,Reinhard Zetter
Friðgeir Grímsson
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 poll...
Taxonomic description of in situ bee pollen from the middle Eocene of Germany [0.03%]
德国中始新世地层蜂花粉的分类描述
FriĐgeir Grímsson,Reinhard Zetter,Conrad C Labandeira et al.
FriĐgeir Grímsson et al.
The middle Eocene Messel and Eckfeld localities are renowned for their excellently preserved faunas and diverse floras. Here we describe for the first time pollen from insect-pollinated plants found in situ on well-preserved ancient bees us...
A comparison of 1978 and 2006 peak pollen seasons and sampling methods in Missoula, Montana [0.03%]
蒙大拿州米苏拉市1978年和2006年花粉高峰期及采样方法对比分析
Kelly L Crispen,Donald N Gillespie,Emily C Weiler et al.
Kelly L Crispen et al.
A study was conducted in Missoula, Montana to compare local pollen counts from 1978 with those measured nearly 30 years later in 2006 using two different measurement techniques (Durham gravimetric sampler and a Burkard volumetric sampler). ...