A contribution to the tertiary occurrence of the genus Dacrydium in the Australian region

1953 ◽  
Vol 1 (3) ◽  
pp. 474 ◽  
Author(s):  
IC Cookson ◽  
KM Pike
Keyword(s):  
Pollen Grains ◽  
New Guinea ◽  
Fossil Pollen ◽  
Australian Region ◽  
Living Species

Foliage shoots and seeds of a new Tertiary species, Dacydium rhomboideum, are described; the affinity of D. rhomboideum is discussed.A new sporomorph, Dacrydiumites florinii, is proposed for fossil pollen grains, similar to those of certain species of Dacrydium, isolated from Tertiary deposits in Australia, Tasmania, and New Guinea. Descriptions of the pollen grains of the living species Dacrydium araucurioides and Dacrydium balansae are included.

Some dicotyledonous pollen types from Cainozoic deposits in the Australian region

1954 ◽  
Vol 2 (2) ◽  
pp. 197
Author(s):  
IC Cookson ◽  
KM Pike
Keyword(s):  
Pollen Grains ◽  
Australian Region ◽  
Pollen Types ◽  
Living Species

Pollen types referable to the families Casuarinaceae, Haloragaceae,Myrtaceae, Olacaceae, Proteaceae, Santaiaceae, and Sapindaceae have been described from Cainozoic deposits in the Australian region; their relationship to living species has been discussed wherever possible. The characters and distribution of three sporomorphs of uncertain affinity have been considered. Details concerning the pollen grains of some of the living species of Anacolosa, Cathedra, Casuarina, the tribe Cupanieae (Sapindaceae), Haloragis, Myriophyllurn, and Santalurn have been recorded.

On the identity and status of Darala lineosa (Lepidoptera: Eupterotidae)

Zootaxa ◽  
2017 ◽  
Vol 4344 (1) ◽  
pp. 163
Author(s):  
WILLY DE PRINS
Keyword(s):  
New Guinea ◽  
Original Description ◽  
Species Group ◽  
Single Female ◽  
Australian Region ◽  
The Family ◽  
Large Genus

In 1862, F. Walker described Darala lineosa in the family Liparidae (now Erebidae, subfamily Lymantriinae) on a single female (he stated that it is a male but see Swinhoe 1892: 209) from Australia (Walker 1862: 269). The genus Darala is now considered a synonym of the large genus Anthela which belongs to the Anthelidae, a family entirely confined to the Australian region with representatives in Australia and New Guinea (Edwards & Fairey 1996: 258). These authors mention 61 Anthela species with about the same amount of synonymic species-group names, but they do not cite Darala lineosa, already indicating that this species does not belong to the Australian fauna and hence that the indication of “Australia” in the original description, and repeated in Walker (1865: 369), is erroneous. 

Fossil pollen grains of Asteraceae from the Miocene of Patagonia: Nassauviinae affinity

2008 ◽  
Vol 151 (1-2) ◽  
pp. 51-58 ◽  
Author(s):  
Viviana Barreda ◽  
Luis Palazzesi ◽  
María Cristina Tellería
Keyword(s):  
Pollen Grains ◽  
Fossil Pollen

scholarly journals Identification of Tertiary Pollen Grains with those of New Guinea and New Caledonian Beeches

Nature ◽  
1952 ◽  
Vol 170 (4316) ◽  
pp. 127-127 ◽  
Author(s):  
ISABEL C. COOKSON
Keyword(s):  
Pollen Grains ◽  
New Guinea

First record of the genus Ptilocerus in the Australian Region, with the description of two new species (Hemiptera: Heteroptera: Reduviidae)

Zootaxa ◽  
2018 ◽  
Vol 4410 (1) ◽  
pp. 177
Author(s):  
M. B. MALIPATIL
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
Type Species ◽  
New Guinea ◽  
First Record ◽  
Morphological Characters ◽  
Northern Territory ◽  
Australian Region ◽  
Two New Species ◽  
First Time

The assassin bugs of the genus Ptilocerus Gray, 1831 (Hemiptera: Heteroptera: Reduviidae: Holoptilinae) occurring in the Australian Region are reviewed for the first time, resulting in the description of two new species, viz., P. spangenbergi sp. nov. (Queensland and Northern Territory, Australia) and P. papuensis sp. nov. (Papua New Guinea). The latter species differs from P. fuscus Gray, 1831 (the type-species of genus Ptilocerus) in a couple of major external morphological characters, hence its tentative placement in the genus Ptilocerus is discussed. A key for the separation of the two new species is provided. 

scholarly journals Can Palynology be used for Reconstructing the Evolutionary History of Maize Agriculture?

2000 ◽  
Vol 14 (1) ◽  
Author(s):  
Grant D. Zazula
Keyword(s):  
Pollen Analysis ◽  
Evolutionary History ◽  
Morphological Characteristics ◽  
Pollen Grains ◽  
Fossil Pollen ◽  
Evolutionary Transition ◽  
Archaeological Evidence ◽  
Maize Agriculture ◽  
History Of ◽  
Pollen Records

The lack of archaeological or macrobotanical evidence that directly links wild teosinte grass with early domesticated maize requires the exploration of alternative methodologies to document this evolutionary transition. The morphological characteristics and measurements for maize, teosinte and Tripsacum pollen are presented to determine if they display sufficient differentiation to be distinguished in fossil pollen records. Analysis of the data reveals a lack of distinguishing morphological characteristics between the pollen grains of these taxa and prevents palynology from be an effective method in documenting the evolutionary history of maize agriculture. Current methods of pollen analysis cannot be employed to document the evolution of teosinte to maize in the Tehuacan Valley of Mexico and pollen is not likely to provide an earlier record of this transition than what is found in the macrobotanical or archaeological evidence.

Australian treehoppers (Hemiptera:Membracidae:Centrotinae:Terentiini): phylogeny and biogeography

2006 ◽  
Vol 20 (2) ◽  
pp. 163 ◽  
Author(s):  
Matthew S. Wallace ◽  
Lewis L. Deitz
Keyword(s):  
Southern China ◽  
New Guinea ◽  
Hainan Island ◽  
Morphological Characters ◽  
The Philippines ◽  
Australian Region ◽  
Centre Of Diversity ◽  
Eastern Australia ◽  
North Eastern ◽  
Plant Families

This work presents the first hypothesis of phylogenetic relationships among all 40 genera of the treehopper tribe Terentiini (Hemiptera : Membracidae : Centrotinae). This phylogeny, based on a parsimony analysis of 77 morphological characters, made possible an analytical approach to determining the likely ancestral host-plant family and geographic distribution of the tribe, based on present-day hosts and distributions. Of Australia’s 37 treehopper genera, 36 belong to the tribe Terentiini, with their centre of diversity in Queensland (30 genera). Optimisations of present-day distributions mapped on our phylogeny suggest that the ancestor of the tribe occurred in the Australian region, around north-eastern Australia (Queensland) and New Guinea (which has 8–10 terentiine genera). Subsequent dispersals from the Australian region (with 37 genera) took the tribe to the Indomalayan (11 genera) and Palaearctic (1 genus) regions. At least 13 terentiine genera include representatives that occur beyond the borders of Australia and New Guinea. Notable among the migrant lineages is the clade ‘Polonius + (Bulbauchenia + (Funkhouserella + Pyrgonota))’, which includes genera with such extraordinary pronotal modifications that some members were previously placed in separate tribes (Bulbaucheniini or Funkhouserellini). Members of this remarkable breakaway clade are known from Australia (Polonius only), Indonesia, the Malay Peninsula, Thailand, the Philippines, southern China (Taiwan and Hainan Island) and Japan. With regard to terentiine host plants, optimisations of present-day host associations point to the Leguminosae as the ancestral host family, even though plant families of Gondwanan origin, especially Myrtaceae and Proteaceae, are also prominent terentiine hosts. The overall evidence to date indicates that Terentiini are not a remnant of the early Gondwanan fauna, but rather a more recent tribe derived from Indomalayan ancestors.

scholarly journals Pollen Concentrate Preparation from Highly Organic Holocene Peat and Lake Deposits for AMS Dating

Radiocarbon ◽  
1994 ◽  
Vol 36 (3) ◽  
pp. 407-412 ◽  
Author(s):  
Ffiona Richardson ◽  
Valerie A. Hall
Keyword(s):  
Pollen Grains ◽  
Fossil Pollen ◽  
Volcanic Event ◽  
Physical Chemical ◽  
Peat Deposits ◽  
Ams Dating ◽  
Novel Method ◽  
Lake Deposits ◽  
Concentrate Preparation ◽  
Concentrate Production

Many of the problems inherent with conventional 14C dating of lake and peat deposits are eliminated by AMS dating of pollen concentrates. Published work describes production of pollen concentrates through expulsion of most of the deposit matrix by repeated deflocculation, selective sieving and final retention of the largest subfossil pollen taxa. Less suited to pollen concentrate production are the highly organic peats and lake muds from the British Isles and Europe. In this study we tested the combined effectiveness of physical, chemical and microbiological degradation and elimination techniques for pollen concentrate production on highly organic peats and a lake mud. We also reviewed methods of enhancing concentrations of smaller sub-fossil pollen grains. Here we present a novel method of assessing AMS dating precision of pollen concentrates by comparing their calibrated dates with a volcanic event of known historical age.

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