New Early Triassic Lingulidae (Brachiopoda) genera and species from South China

Peng, Y. & Shi, G.R., June, 2008. New Early Triassic Lingulidae (Brachiopoda) genera and species from South China. Alcheringa 32, 149–170. ISSN 0311-5518.

Two new genera, Sinolingularia gen. nov. and Sinoglottidia gen. nov., together with three new species, Sinolingularia huananensis gen. et sp. nov., Sinolingularia yini gen. et sp. nov. and Sinoglottidia archboldi gen. et sp. nov., are described on the basis of a large collection of well-preserved specimens from several sections straddling the Permian – Triassic boundary in South China.     

Discovery of late Changhsingian (latest Permian) brachiopod Attenuatella species from South China

Cretaceous polar dinosaur faunas were taxonomically diverse, which suggests varied strategies for coping with the climatic stress of high latitudes. Some polar dinosaurs, particularly larger taxa such as the duckbill Edmontosaurus Lambe, 1917 Lambe, L. M. 1917. A new genus and species of crestless hadrosaur from the Edmonton Formation of Alberta. Ottawa Naturalist, 31: 65–73.  [Google Scholar], were biomechanically and energetically capable of migrating over long distances, up to 2600 km. However, current evidence strongly suggests many polar dinosaurs (including sauropods, large and small theropods, and ankylosaurs of New Zealand) overwintered in preference to migration. Certain groups also appear more predisposed to overwintering based on their physical inability (related to biomechanics, natural history, or absolute size) to migrate, such as ankylosaurs and many small taxa, including hypsilophodontids and troodontids. Low-nutrient subsistence is found to be the best overwintering method overall, although the likelihood that other taxa employed alternative means remains plausible. Despite wide distribution of some genera, species-level identification is required to assess the applicability of such distributions to migration distances. Presently, such resolution is not available or contradicts the migration hypothesis.     

Research on the history of the third world in Scandinavia

The aim of this paper is to challenge some of the established views on monetary and economic aspects of medieval Norwegian history. This challenge is not only based on a different understanding of the evidence, but also on new interpretations of documentary and numismatic evidence. Contrary to what has been the general understanding I argue that money was available, and it was, in longer periods of time, available within a framework of a well organized monetary system with large coinages. In the second half of the 12th century, coins became distributed and used among a larger group of people in rural areas than ever before. In market places and towns, money economy was emerging in the 11th and 12th, and probably seen partly in effect in the 13th and 14th century. If we accept the evidence for coinage and the use of money as being widely distributed, or even accept it partly, it opens up a range of new perspectives to use as starting points for understanding medieval monetary and economic history in Norway.     

Stromatolite recognition in ancient rocks: an appraisal of irregularly laminated structures in an Early Archaean chert-barite unit from North Pole,Western Australia

The word ‘stromatolite’ should only be applied to organosedimentary structures predominantly accreted by sediment trapping, binding and/or in situ precipitation as a result of the growth and metabolic activities of benthic, principally prokaryotic, micro-organisms. Structures of uncertain origin that resemble stromatolites should be called ‘stromatoloids’. This cautious approach would eliminate the currently common assumption that structures with mesoscopic morphological similarities to microbially accreted sedimentary structures must be biogenic, a misconception that hampers investigations into the antiquity of life.

A hierarchical series of meso- and microstructural attributes of stromatolites can be used to assign gradually increasing probabilities of biogenicity to stromatoloids. This method is particularly useful for interpreting ancient noncolumnar stromatoloids with poor microstructural preservation. In a range of Early Archaean pseudocolumnar, nodular and stratiform stromatoloids from North Pole studied using this method, none could be proved to be stromatolites and only a few are probable or possible stromatolites. As these stromatoloids closely resemble previously reported structures from North Pole interpreted as stromatolites, we consider that the evidence for the existence of life c. 3500 my ago at North Pole is less definitive than previously supposed.     

Comparative and transnational perspectives on the introduction of multiculturalism in post-war Sweden

In the 1970s, Canada, Sweden and Australia became the first countries in the West to adopt formally the idea of multiculturalism as a basis for the political management of immigrant settlement. This article compares the introduction of the idea and politics of multiculturalism in Sweden in the 1960s and 1970s to the introduction of multiculturalism in Canada and Australia during the same time period. The emergence of a politics of multiculturalism in Sweden shares many similarities with the emergence of Canadian and Australian multiculturalism: ‘white’ and ‘European’ immigrant minority groups; ethnic lobbying; expert and academic advocacy; multiculturalist public officials; and effectual claims-making based on the innovative idea of multiculturalism. The comparative perspective on the birth of Swedish multiculturalism furthermore highlights Finland as an important historical and transnational factor in the introduction of official multiculturalism in Sweden. The article contributes to research on the history of multiculturalism, the politics of ethnic diversity in Sweden and comparative research on modern Swedish history.     

Early astogeny in the Catenicellidae (Bryozoa,Cheilostomata)

Examples of early astogeny in the species Carinatocella harmeri (Stach), Costaticella hastata (Busk) and Claviporella aurita (Busk) are discussed. The primary zoid differs in each species and if found fossil, only in C. hastata could this zoid be recognised as a bryozoan fragment. Analogous development in other Bryozoa is discussed.     

The clash of great powers and revolution in the Baltic Sea?

The Soviet party leadership claimed repeatedly after the mid-1920s that the Soviet Union was under an acute threat of intervention. The interpretation was based on different views regarding the development of socialism in the USSR. The role of Finland in the Soviet policy towards other border-states offers a case for observing the relation of ideology and practice in Soviet foreign policy, especially in the Baltic Sea context in 1925. The main interests for the Soviets were plans for military alliances and spheres of influence and intelligence. Contrary to the ideological worldview, the Peoples’ Commissariat for Foreign Affairs (NKID) did not see the western great powers, Great Britain and France, as being behind the Baltic alliance plan. Instead, the alliance attempt was primarily seen as an independent Polish initiative, especially lacking British support. The Soviet foreign administration was able to evaluate the grounds for eventual Finnish non-alliance accurately, despite Baltic sympathies and the lack of an active Scandinavian orientation. The results suggest the NKID observed international relations from the traditional viewpoint of Soviet state interests, and on the basis of quite accurate information, not reflecting the needs of ideological interpretation or domestic power struggles.     

Picturing Austria–Hungary. The British Perception of the Habsburg Monarchy, 1865–1870

In the late 1960s a Joint Nordic Co-operative Assistance Project was established in Tanzania. Its objective was to promote co-operative development in Tanzania based on Nordic experiences in the field. The project's effort to export Nordic co-operative ideas and traditions to Tanzania soon encountered major problems as the Government of Tanzania (GoT) launched a villagization process in the beginning of the 1970s, which sought to move the entire peasant population into ujamaa villages. The resettlement effort was implemented with the use of force and coercion and implied a dismantling of the traditional co-operative structures in Tanzania. This article finds that the Nordic countries helped facilitate GoT's compulsory policy by adjusting and restructuring the project to GoT's villagization strategy, despite the fact that the primary objective of the project was no longer present. As the article will reveal, there was a clear concern in the Nordic aid administrations that the Nordic project could be linked with the politics of coercion ingrained in the ujamaa policy.     

Evolution of the Concept of ‘Extracellular Matrix’ in the Brain

The question as to whether an extracellular matrix exists between cells in the adult brain has been debated since the end of the last century. In the early years, zones containing neuropil and glial processes were mistakenly believed to represent this substance. But Golgi's discovery of the “perineuronal net” paved the way for future study of the true extracellular matrix. In the 1950s, application of histochemical techniques established the existence of interstitial material between nerve cells. Unfortunately the similarity between the pericellular distribution of this material and Golgi's “pericellular nets” was overlooked. The detection of an extracellular volume fraction in the central nervous system furnished further indirect proof for the existence of an extracellular matrix in the brain. However, the repeated failure of electron microscopy to reveal a substantial space between cell processes undermined the acceptance of the concept of “extracellular matrix” in the central nervous system. Nowadays this concept has, however, been firmly established.