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New species of Ontocetus (Pinnipedia: Odobenidae) from the Lower Pleistocene of the North Atlantic shows similar feeding adaptation independent to the extant walrus (Odobenus rosmarus).
Ontocetus is one of the most notable extinct odobenines owing to its global distribution in the Northern Hemisphere. Originating in the Late Miocene of the western North Pacific, this lineage quickly spread to the Atlantic Ocean during the Pliocene, with notable occurrences in England, Belgium, The Netherlands, Morocco and the eastern seaboard of the United States. Reassessment of a pair of mandibles from the Lower Pleistocene of Norwich (United Kingdom) and a mandible from the Upper Pliocene of Antwerp (Belgium) that were referred to as Ontocetus emmonsi reveals existences of features of both Ontocetus and Odobenus. The presence of four post-canine teeth, a lower canine larger than the cheek-teeth and a lower incisor confirms the assignment to Ontocetus; simultaneously, characteristics such as a fused and short mandibular symphysis, a well-curved mandibular arch and thin septa between teeth align with traits usually found in Odobenus. Based on a combination of these characters, we describe Ontocetus posti, sp. nov. Its mandibular anatomy suggests, a better adaptation to suction-feeding than what was previously described in the genus suggesting that Ontocetus posti sp. nov. likely occupied a similar ecological niche to the extant walrus Odobenus rosmarus. Originating from the North Pacific Ocean, Ontocetus most likely dispersed via the Central American Seaway. Although initially discovered in the Lower Pliocene deposits of the western North Atlantic, Ontocetus also left its imprint in the North Sea basin and Moroccan Plio-Pleistocene deposits. The closure of the Isthmus of Panama during the Mio-Pliocene boundary significantly impacted the contemporary climate, inducing global cooling. This event constrained Ontocetus posti in the North Sea basin leaving the taxon unable to endure the abrupt climate changes of the Early Pleistocene, ultimately going extinct before the arrival of the extant counterpart, Odobenus rosmarus
Circular Reasoning in Mound Building? Large-scale Planned Construction Patterns at the Aguas Buenas Site (A.D. 400–1525).
Archaeology of the America
Mustang Daily, May 10, 1984
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.https://digitalcommons.calpoly.edu/studentnewspaper/4323/thumbnail.jp
Fungal Genetics Stock Center Catalogue of Strains, 10th Edition
Catalogue of Strains, 10th edition, 2004, supplement to Fungal Genetics Newsletter No. 51. This catalogue contains lists of materials held by the Fungal Genetics Stock Center
Fungal Genetics Stock Center Catalogue of Strains
Catalogue of Strains, 11th edition, 2006, supplement to Fungal Genetics Newsletter No. 53. This catalogue contains lists of materials held by the Fungal Genetics Stock Center
Maritime labour, transnational political trajectories and decolonisation from below: the opposition to the 1935 British Shipping Assistance Act
This paper uses a discussion of struggles over attempts by the National Union of Seamen to exclude seafarers form the maritime labour market in the inter-war period to contribute todebates at the intersection of maritime spaces and transnational labour geographies (cf Balachandran, 2012, Hogsbjerg, 2013). Through a focus on struggles over the British Shipping Assistance Act of 1935 it explores some of the transnational dynamics through which racialized forms of trade unionism were contested. I argue that the political trajectories, solidarities and spaces of organising constructed through the alliances which were produced to oppose the effects of the Act shaped articulations of ‘decolonisation from below’ (James, 2015). Engaging with the political trajectories and activity of activists from organisaions like the Colonial Seamen’s Association can open up both new ways of understanding the spatial politics of decolonisation and new accounts of who or how such processes were articulated and contested. The paper concludes by arguing that engagement with these struggles can help assert the importance of forms of subaltern agency in shaping processes of decolonisation
Aquilegia, Vol. 39 No. 1, Spring 2015, Newsletter of the Colorado Native Plant Society
https://epublications.regis.edu/aquilegia/1152/thumbnail.jp
Chapter 27: The law of armed conflict (international humanitarian law)
This chapter contains an overview of the modern law of armed conflict (international humanitarian law) in all its main aspects, from the scope of application of the law through methods of warfare, weapons and targeting operations, to protection of victims and issues of enforcement and implementation