The phylogenetic relevance of the sacrum among macronarian sauropods: insights from a pelvis from the Upper Cretaceous of Patagonia,Argentina

Filippini, F.S., Otero, A. & Gasparini, Z., June 2016. The phylogenetic relevance of the sacrum among macronarian sauropods: insights from a pelvis from the Upper Cretaceous of Patagonia, Argentina. Alcheringa 41, xxx–xxx. ISSN 0311-5518.

Anatomical variation in the sacrum is useful for differentiating sauropod lineages. Morphological variation in the sacrum has been underestimated mainly because of its anatomical complexity and uncertain homologies with presacral and postsacral elements. We describe a titanosaurian sauropod pelvis (MLP 46-VIII-21-2) from Plottier (Neuquén Province, Argentina) collected in the 1940s from Coniacian–Santonian (Upper Cretaceous) strata. The degree of bone fusion in the specimen (fused vertebral centra forming a single rod, with neural arches fused to the corresponding centrum and to adjacent neural arches) indicates a late ontogenetic age. The presence of a space between the first vertebra and the anterior margin of the illium, together with a scar located on the anterior part of the preactabular process, suggest the possible presence of a sixth sacral vertebra (putative dorsosacral additional characters present in the ilium point towards affinities with Titanosauria. The completeness and good preservation of the specimen allowed us to track features along the sacral series and to compare characters with other sauropods. Within a phylogenetic context, and based on the pattern present in basal sauropodomorphs, the presence of three sacral elements attached to the rim of the acetabulum in eusauropods opens the possibility for considering such elements as primordial sacrals.

Florencia S. Filippini [florencia304@live.com.ar], División Paleontología de Vertebrados, Museo de La Plata, Paseo del Bosque s/n, La Plata, 1900, Bs. As., Argentina; Alejandro Otero [alexandros.otero@gmail.com]; Zulma Gasparini [zgaspari@fcnym.unlp.edu.ar] CONICET—División Paleontología de Vertebrados, Museo de La Plata, Paseo del Bosque s/n, La Plata, 1900, Bs. As., Argentina.     

Rock Stars and Bad Apples: Moral Economies of Alternative Food Networks and Precarious Farm Work Regimes

Alternative food networks face both challenges and opportunities in rethinking the role of precarious employment in food system transformation. We explore how alternative food networks in British Columbia, Canada have engaged with flexible and precarious work regimes for farmworkers, including both temporary migrant workers and un(der)paid agricultural interns. Based on in‐depth interviews, participant observation and document analysis, we find that alternative food actors often normalize a precarious work regime using a moral economy frame. This framing describes precarious farm employment as either a necessary challenge in the transition to sustainability, or merely involving a few individual “bad apple” farmers. Further, this framing involves an aversion to “one‐size‐fits‐all” regulation by the state in favor of consumer‐driven regulation of labor standards. Our analysis suggests that a moral economy framing can obscure systemic inequities in precarious farm employment and dampen the impetus for structural change through collective food movement organizing.     

‘A Most Manly and Amusing Game’: Australian Football and the Frontier Wars

Formed in the 1850s frontier contact zone, Australian Football owes more to the experiences of the skirmishes between white settlers and Indigenous Australians than is usually recognised. If we reassess the historical sources from a Deleuzo-Guattarian perspective, we observe that the ‘Game of Our Own’ is a mix of British and Indigenous styles of warfare. The four men who drafted the rules of this new ‘most manly and amusing game’ were misfits from British society who were seeking new lives on the frontier. Their code contained ‘striating’ features played across ‘smooth’ spaces. The football teams adopted totemic plants and animals in their nomenclature; the players were bedizened in costumes that spoke of Empire; the bloody Frontier Wars were in living memory of the players and their ‘barrackers’.     

A new record of an aristonectine elasmosaurid (Sauropterygia,Plesiosauria) from the Upper Cretaceous of New Zealand: implications for the Mauisaurus haasti Hector, 1874 hypodigm

O’Gorman, J.P., Otero, R.A. & Hiller, N., 2014. A new record of an aristonectine elasmosaurid (Sauropterygia, Plesiosauria) from the Upper Cretaceous of New Zealand: implications for the Mauisaurus haasti Hector, 1874 Hector, J., 1874. On the fossil Reptilia of New Zealand. Transactions and Proceedings of the New Zealand Institute 6, 333–358. [Google Scholar] hypodigm. Alcheringa 38, 504–512. ISSN 0311-5518

An indeterminate aristonectine elasmosaurid is recorded from a lower Maastrichtian bed of the Conway Formation, Waipara River, South Island, New Zealand. The described specimen (CM Zfr 104), previously considered part of the hypodigm of Mauisaurus haasti, came from the upper part of the Alterbidinium acutulum biozone, the same zone from which the only well-known aristonectine from New Zealand, Kaiwhekea katiki, is recorded. The cervical vertebrae of CM Zfr 104 have the same distinctive features (i.e., with extremely broad rather than long centra) as those from previously recorded juvenile aristonectines from Argentina, Chile and Antarctica. This new record is congruent with the biogeographic relationships of Cretaceous marine amniotes from the Weddellian Palaeobiogeographic Province (i.e., Patagonia, western Antarctica, New Zealand and southeastern Australia). Therefore, this type of vertebra is regarded as a distinctive feature of the Weddellian aristonectine elasmosaurids.

José P. O’Gorman [joseogorman@fcnym.unlp.edu.ar], División Paleontología Vertebrados, Museo de La Plata, Universidad Nacional de La Plata, Paseo del Bosque s/n., B1900FWA, La Plata, Argentina; [CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas)]; Rodrigo A. Otero [paracrioceras@gmail.com], Red Paleontológica U-Chile. Laboratorio de Ontogenia y Filogenia, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Av. Las Palmeras 3425, Santiago, Chile; Norton Hiller, [norton.hiller@canterbury.ac.nz], Department of Geological Sciences, University of Canterbury, PB 4800, Christchurch, 8001, New Zealand and Canterbury Museum, Rolleston Avenue, Christchurch, New Zealand, 8013.     

Earliest hunters and gatherers of South America

Traditional syntheses of the archaeology of the late Pleistocene period in South America have focused primarily on the peopling of the continent by North American cultural groups and on identifying associations among regional sites. This focus has tended to ignore the widespread culture diversity of the period and the possible effects of different paleolandscapes on human migration and colonization, such as the presence of unglaciated tropical and temperate environments in the northern lowlands, the gateway to the interior. The earliest known cultural assemblages are characterized by various unifacial and bifacial lithic industries that may represent regional processes reminiscent of an Archaic lifeway. The major archaeological sites and associated artifact assemblages are examined in terms of regional and continental patterns of environmental and cultural change. Results suggest that the Pleistocene archaeological record of South America must be explained in its own terms and that the events and processes producing this record either occurred earlier than previously thought or are very different from those in North America.     

Defining and Contesting Environmental Justice: Socio-natures and the Politics of Scale in the Delta

Abstract:  This article examines a contemporary process intended to "identify a strategy for managing the Sacramento–San Joaquin Delta as a sustainable ecosystem that would continue to support environmental and economic functions that are critical to the people of California" ( Delta Vision 2008 , http://deltavision.ca.gov/AboutDeltaVision.shtml ). Environmental injustices in the Delta are exacerbated by connected conflicts between knowledge and power, over the scale at which "environmental justice" and the "Delta" are understood through public policy. The rejection of environmental justice and the socio-natural in the Delta Vision process represents how contemporary policy processes are recreating and reenacting the power/knowledge dynamics that have defined the Delta, placed it on a path to ecological collapse and injected high levels of social and racial injustice in its landscape over the past 150 years. Our article combines an ethnographic and a historical geographical approach that contributes to the literature on environmental justice and scale and links with the literature on water governance and power to advance the task of defining environmental justice from the academic and policy perspectives.     

Mining Formalization at the Margins of the State: Small‐scale Miners and State Governance in the Peruvian Amazon

This article analyses the Peruvian government's quest to formalize small‐scale mining in the Amazon as a political process which shows how state governance problems are reproduced in the margins of the state. It asks why the central state is unable to govern mining activities in the Madre de Dios region, and examines how small‐scale miners have reacted to state attempts to formalize their activities. The author argues that, through political agency and the reproduction of ‘hybrid’ formal and informal institutions, small‐scale miners have learned to contest, reinterpret and build alternatives to central state governance. The article contributes to the literature on development policies by showing how difficulties in implementing regulatory policies may be analysed as governance problems, particularly in regions like the Amazon, where the state apparatus is not well established.