The statement, by the eighteenth-century economist Adam Smith, that luxuries are all things that are not necessities is too simplistic an approach to be useful within the context of zooarchaeology. To start with, all animal products could be regarded as unnecessary within the human diet. Therefore, a four-part subdivision is proposed, distinguishing between foodstuffs that fulfill basic physiological needs, those that fulfill imagined needs, those that render a diet affluent and, finally, luxury foods. Optimal foraging theory further develops this subdivision by also taking into account the costs involved in obtaining the ingredients. The distinction between the affluent and the luxurious diet in particular allows us to define criteria through which luxury foods can be recognized within a zooarchaeological assemblage. At the same time, however, the constraints of such an exercise become apparent. This theoretical approach is illustrated by case studies from Roman to post-medieval Europe.
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In addition to the type species, Binkhorstia ubaghsii, which is fairly common in the upper part of the Nekum Member (Maastricht Formation) in the wider vicinity of Maastricht (the Netherlands) and Binkhorstia euglypha, which appears to be restricted to the overlying Meerssen Member of the same formation (uppermost Maastrichtian), a third member, B. desaegheri nov. sp., is recorded from the upper middle Santonian of the Campine area in north-east Belgium. The history of Binkhorstia is convoluted, serving as a prime example of how attempts to unravel the higher-level taxonomic position of late Mesozoic crabs may prove difficult. Over time, the genus has been referred to various families or subfamilies, either podotreme or putative eubrachyuran; here the new family Binkhorstiidae is placed in the superfamily Retroplumoidea. Binkhorstiids appear to have been a relatively short-lived endemic group that fell victim to Cretaceous‒Paleogene (K/Pg) boundary perturbations.
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RBINS Staff Publications 2024
