A new genus and species of dasyurid from the Pliocene Chinchilla Local Fauna of south-eastern Queensland

A new genus and species of dasyurid is described on the basis of P³, M¹–M³ and M_2–3 collected from the middle Pliocene Chinchilla Local Fauna of south-eastern Queensland. Character analysis supports the placement of this new taxon within the dasyurid subfamily Dasyurinae. Derived dasyuromorphian features common to A. chinchillaensis and most dasyurines include: reduction of P³, reduction of stylar cusp B on M¹; reduction of metaconids; approximation of stylar cusp B and the metacone on M¹; alignment of the postmetacrista on M¹ with the long axis of the maxilla and an oblique orientation of the hypocristids with respect to the long axis of the teeth. However in most instances, A. chinchillaensis is less specialised than other members of the subfamily for characters considered. One derived dental feature, reduction of the entoconid, may indicate a special relationship with ‘parantechinines’, Dasyuroides and/or Dasycercus. Additionally, the presence of this feature is suggestive of an open woodland/seasonal habitat. Autapomorphic P³ morphology compounds difficulties with the phylogenetic placement of this taxon.     

First fossil record of amiid fishes (Halecomorphi,Amiiformes, Amiidae) from the Late Cretaceous of Uberaba,Minas Gerais State,Brazil

Martinelli, A.G., Bogan, S., Agnolin, F.L., Ribeiro, L.C.B., Cavellani, C.L., Ferraz, M.L.F. & Teixeira, V.P.A., iFirst article. First fossil record of amiid fishes (Halecomorphi, Amiiformes, Amiidae) from the Late Cretaceous of Uberaba, Minas Gerais State, Brazil. Alcheringa, 1–9. ISSN 0311-5518.

The first fossil amiid fishes (Halecomorphi, Amiiformes) from the Late Cretaceous Marília Formation (Bauru Group) at Uberaba County, Triângulo Mineiro region (Minas Gerais State, Brazil), are described. The material includes some partial maxillae, a dermopterotic, a cleithrum, several vertebral centra and teeth. Features such as the absence of a supramaxillary notch on the dorsal edge of the maxilla, a wide and deep pit on the maxilla for the articulation of the premaxilla, anterior portion of the maxilla with a sub-circular cross-section, teeth with acrodine cup with strong mesial and distal keels, among others, permit confident referral of the material to the Subfamily Vidalamiine (Amiidae), previously recognized in Lower Cretaceous strata of northeasthern Brazil. These specimens constitute the first Late Cretaceous record of this group in Brazil and one of the few in South America.

Agustín G. Martinelli [agustín_martinelli@yahoo.com.ar], Centro de Pesquisas Paleontológicas Llewellyn Ivor Price, Complexo Cultural e Científico Peirópolis (CCCP/UFTM), BR-262, Km 784, Bairro Peirópolis, Uberaba, Minas Gerais, Brazil; Sergio Bogan [sergiobogan@yahoo.com.ar], Fundación de Historia Natural ‘Félix de Azara’, Departamento de Ciencias Naturales y Antropología, CEBBAD—Universidad Maimónides, Hidalgo 775 piso 7 (1405BDB), Buenos Aires, Argentina. Federico Agnolín* [fedeagnolin@yahoo.com.ar], Sección Paleontología de Vertebrados, Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’, Av. Ángel Gallardo 470 (C1405BDB), Buenos Aires, Argentina. Luiz Carlos Borges Ribeiro [lcbrmg@terra.com.br], Camila Lourencini Cavellani [camila@patge.uftm.edu.br], Mara Lúcia da Fonseca Ferraz [mara@patge.uftm.edu.br] and Vicente de Paula Antunes Teixeira [vicente@patge.uftm.edu.br], Centro de Pesquisas Paleontológicas Llewellyn Ivor Price, Complexo Cultural e Científico Peirópolis (CCCP/UFTM), BR-262, Km 784, Bairro Peirópolis, Uberaba, Minas Gerais, Brazil. *Also affiliated with: Fundación de Historia Natural ‘Félix de Azara’, Departamento de Ciencias Naturales y Antropología, CEBBAD—Universidad Maimónides, Valentín Virasoro 732 (C1405BDB), Buenos Aires, Argentina. Received 15.4.2012; revised 11.6.2012; accepted 20.6.2012.     

Devolution,Constitutional Development,and the Russian North

A prominent American Sovietologist examines a range of issues surrounding the involuntary migration of Russian populations from the non-Russian republics of the former USSR. Among the questions addressed are possible magnitudes of in-migration into Russia (with special attention paid to conditions in one of the major source regions, Central Asia), attitudes in Russia regarding appropriate policy with respect to treatment of co-nationals in the near abroad and whether their return to Russia would have a positive or negative impact, and conditions in areas of Russia that presently are absorbing the greatest numbers of migrants. The assertion that Russian policy should seek aggressively to prevent the out-migration of Russian populations in the near abroad is assessed critically. 1 table, 1 figure, 10 references.     

SETTLEMENT IN EXURBAN/SUBURBAN ZONES: CHARACTERISTICS OF SPATIAL ORGANIZATION

The authors survey settlement in suburban zones of major cities as an important component of spatial and socioeconomic planning of settlement systems. “Inner” and “outer” suburban zones are identified—the former on the fringes of the built-up area of an agglomeration and the latter comprising exurban sites in oblasts adjoining the agglomeration. The substantial desire for and widespread use of second homes by city dwellers, particularly near sites of collective gardening, is viewed as a key component to be incorporated into future planning as a tool for regulating the influx of urbanites into the countryside (translated by H. L. Haslett, Leamington Spa, UK).     

THE SETTLEMENT OF EUROPEAN RUSSIA DURING THE ROMANOV PERIOD (1613-1917)

This paper compares and contrasts Russian frontier experiences on the northern and southern parts of the European plain during the Romanov era (1613-1917). Both were “open” frontiers, in Turner's sense of a frontier as the “hither edge of free land,” but their environments and the settlement processes which affected them were very different. It is suggested that the character of a frontier society is decisively influenced by the process whereby settlers must adapt to their new environment, the features which attract them to that environment, and the character of the pre-existing inhabitants. The northern frontier formed part of what Meinig has called a “boreal riverine empire” with a harsh environment, to which paradoxically the Russians found it relatively easy to adapt, the great attraction of fur-bearing animals and reasonably benign relations with native peoples. By contrast, the southern frontier was a “frontier of exclusion,” following Lattimore's phrase, with hostile indigenes, a natural environment demanding special methods of adaptation, but with many more attractions than the north. Such contrasts gave rise to considerable differences in the settlement process, in the character of land allocation and in the type of society evolving subsequently, with long-term consequences for emerging human landscapes.     

Experimental study of the effect of variation in in‐situ stress on capillary residual trapping during CO2 geo‐sequestration in sandstone reservoirs

During a geo‐sequestration process, CO₂ injection causes an increase in reservoir pore pressure, which in turn decreases the reservoir net effective stress. Changes in effective stress can change all the reservoir and cap‐rock properties including residual saturations. This article presents the results of an experimental work carried out to understand the potential change in the volumes of residually trapped CO₂, while the porous medium tested underwent change in the net effective stress under in‐situ reservoir conditions of pore pressure and temperature. The experimental results obtained show that an initial 1725 psi (11.9 MPa) decrease in the net effective pressure caused 1.4% reduction in the volumes of residually trapped CO₂, while another 1500 psi (10.3 MPa) reduction caused a further 3.2% drop in the residual saturation of CO₂.     

Grave Circle B at Mycenae in the Context of Links Between the Eastern Mediterranean and Scandinavia in the Bronze Age

Artifacts from royal burial graves Gamma and Omicron of grave circle B at Mycenae attest to cultural ties between the Eastern Mediterranean elite and that of the Scandinavian Early Bronze Age (mid- and late 2nd millennium BC). The appearance of the running spiral motif and representations of ships with rams in Scandinavia coincide with the beginning of the Mycenaean civilization. These facts, along with the ?nds of Baltic amber only in the royal burials at Mycenae but not in Crete, suggest that a principal role in the introduction of these cultural elements in Scandinavia during the Scandinavian Bronze Age (periods I–III according to Montelius) was played by the Mycenaean elite.     

Malthus,gender and the demarcation of ‘dangerous’ bodies in 1996 US welfare reform

This article argues that populationism as a gendered narrative provides a crucial rhetorical architecture for welfare reform debates in the USA during the 1990s. Populationism, which Joni Seager defines as ‘the dogma and the rhetoric of population alarmism and population control,’ subtly legitimized efforts to control and marginalize poor women's bodies in the context of welfare reform. The populationism underlying welfare reform hinges on a deep fear of engulfing social chaos if ‘we’ do not check the fertility of poor women, and particularly women of color. This article historically situates contemporary welfare politics by tracing in some detail how Malthus' original writings on population were constitutively linked to debates about ‘poor relief’ in early nineteenth century England. Exploring the gendered linkages between Malthus and social welfare policy in the 1800s allows us to understand how Malthus continues to haunt discourses about social welfare in the 1990s and beyond, with direct consequences for poor women and particularly poor women of color.