A new antiarch placoderm from the Emsian (Early Devonian) of Wuding,Yunnan, China

Pan, Z., Zhu, M., Zhu, Y. &; Jia, L., August 2017. A new antiarch placoderm from the Emsian (Early Devonian) of Wuding, Yunnan, China. Alcheringa 42, 10–21. ISSN 0311-5518.

Wufengshania magniforaminis, a new genus and species of the Euantiarcha (Placodermi: Antiarcha), is described from the late Emsian (Early Devonian) of Wuding, Yunnan, southwestern China. The referred specimens were three-dimensionally preserved in black shales, allowing a high-resolution computed tomography reconstruction of anatomical details. The new euantiarch is characterized by a large orbital fenestra, an arched exoskeletal band around the orbital fenestra and a developed obtected nuchal area of the skull roof. Maximum parsimony analysis, using a revised data-set of antiarchs with 44 taxa and 66 characters, resolves Wufengshania gen. nov. as a member of the Bothriolepididae, which is characterized by the presence of the infraorbital sensory canal diverging on the lateral plate, and the nuchal plate with orbital facets. New analysis supports a sister group relationship between Dianolepis and the Bothriolepididae. Luquanolepis, a coeval euantiarch from the neighboring site of the new form, is referred to the Asterolepidoidei and represents the basalmost and earliest member of the Asterolepidoidei.

Zhaohui Pan* [panzhaohui@ivpp.ac.cn], Min Zhu* [zhumin@ivpp.ac.cn], You’an Zhu^? [zhuyouan@ivpp.ac.cn] and Liantao Jia [jialiantao@ivpp.ac.cn] Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, PO Box 643, Beijing 100044, PR China. *Also affiliated with University of Chinese Academy of Sciences, Beijing, 100049, PR China. ^?Also affiliated with Uppsala University, PO Box 256, 751 05 Uppsala, Sweden.     

Al-Fārābī’s Cave: Aristotle’s Logic and the Ways of Socrates and Thrasymachus

In his commentary on Aristotle’s Rhetoric al-Fārābī harmonizes Plato and Aristotle in terms of philosophic education by ordering Aristotle’s eight logical works onto Plato’s famous image of the cave. He represents the way out of the cave with Aristotle’s four logical works of ascent (Categories, On Interpretation, Prior Analytics, and Posterior Analytics) and the return into the cave through Aristotle’s four logical works of the descent (Topics, Sophistical Refutations, Rhetoric, and Poetics). Al-Fārābī’s image of ascent and descent also alludes to Socrates’ conception of protreptic education in Book VII of the Republic. In essence, protreptic education consists in the Socratic art that freely turns the soul from the images and political interpretations of things to being itself. In this essay I argue that for al-Fārābī the four logical works of ascent guide the soul to free itself from its habituations so as to contemplate real beings, particularly the good of one’s own soul and the souls of one’s fellow citizens. Yet the ruler needs to use the arts of “descent,” as demonstrated by Thrasymachus, in order to rule the city well. The way of Socrates consists of the logical methods used to come to possess knowledge of being, while the way of Thrasymachus comprises the methods of persuasion to habituate citizens and protect the philosophic quest for the truth. Al-Fārābī, I conclude, combines the way of Socrates and the way of Thrasymachus in order to show that both ways are useful and necessary for good governance.     

The afterlife of earthen-core buildings: A taphonomic study of threatened and effaced architecture in Central Belize

Buried architecture poses an interpretive challenge to field archaeologists the world over. The depositional sequence of the site must be reconstructed through excavation and stratigraphic analysis, and the various phases of construction and use that occurred in the past must be inferred. Effaced earthen-core architecture (e.g., architecture that was once faced with a masonry outer layer that is no longer present) constitutes a heightened challenge in this regard, as events and layers are not always clearly distinguishable, an interpretive difficulty that can be compounded when such architecture is threatened and decay accelerated by modern-day land use activities such as bulldozing and plowing. The case study presented here focuses on an ancient Maya E-Group architectural configuration—a triangular arrangement of structures that served to commemorate astronomical events, among other functions—that is being degraded through repetitive plowing. The significance of this site in regard to Maya archaeology is undeniable, as it was used and reused over a period of at least eight centuries. The site warranted a salvage-based approach designed to gather maximal quantities and types of data when only a minimal amount of time, labor, and funding was available. The procedure presented here was developed for a specific example of endangered, earthen-core Maya architecture in Belize; however, it is applicable to any archaeological project that faces similar obstacles in examining and documenting architecture before it is either eroded or intentionally destroyed.     

Modern humans in Sarawak,Malaysian Borneo,during Oxygen Isotope Stage 3: palaeoenvironmental evidence from the Great Cave of Niah

During recent reinvestigations in the Great Cave of Niah in Borneo, the ‘Hell Trench’ sedimentary sequence seen by earlier excavators was re-exposed. Early excavations here yielded the earliest anatomically-modern human remains in island Southeast Asia. Calibrated radiocarbon dates, pollen, algal microfossils, palynofacies, granulometry and geochemistry of the ‘Hell Trench’ sequence provide information about environmental and vegetational changes, elements of geomorphic history and information about human activity. The ‘Hell’ sediments were laid down episodically in an ephemeral stream or pool. The pollen suggests cyclically changing vegetation with forest habitats alternating with more open environments; indicating that phases with both temperatures and precipitation reduced compared with the present. These events can be correlated with global climate change sequences to produce a provisional dating framework. During some forest phases, high counts of Justicia, a plant which today colonises recently burnt forest areas, point to fire in the landscape. This may be evidence for biomass burning by humans, presumably to maintain forest-edge habitats. There is evidence from palynofacies for fire on the cave floor in the ‘Hell’ area. Since the area sampled is beyond the limit of plant growth, this is evidence for human activity. The first such evidence is during an episode with significant grassland indicators, suggesting that people may have reached the site during a climatic phase characterised by relatively open habitats ∼50 ka. Thereafter, people were able to maintain a relatively consistent presence at Niah. The human use of the ‘Hell’ area seems to have intensified through time, probably because changes in the local hydrological regime made the area dryer and more suitable for human use.     

Concentrated Urban Poverty: The Case of Izmir Inner Area,Turkey

In Turkey, poverty has been a main subject of debates since 1960s. It used to be a serious problem for both rural areas and the big cities that gained migration. In Turkey and world-wide since the 1980s, however, there have been more research interests in the concentrated urban poverty, especially along with the increase in levels of impoverishment around the world. With the help of a case study in Izmir (Turkey), this paper aims to examine the process of concentrated urban poverty from different points of view in the literature. This is a case study developed at the peripheries of the traditional city centre—or inner areas—of the city of Izmir, Turkey. The paper, first, discusses the parameters of concentrated poverty according to the literature. Then it introduces the study findings of the author, which point out the macro-scale, micro-scale and ecological dynamics that are important in the development of concentrated urban poverty. The macro-scale dynamics suggest that poverty in inner areas of the city are related to the unbalanced development trends within the country, such as the overgrowth of metropolitan cities, economic restructuring processes, migration trends and the development of informal economy. The ecological dynamics address to the housing and job location preferences and invasion-succession processes in the city, which emphasize that socio-economic characteristics of inner areas of the city are different from those of other city parts. Micro-scale dynamics are related to poors' ability of developing solidarity relations among themselves, which is also related to the spatial characteristics of inner areas of the city, according to this study's findings.     

The Art of Taphonomy and the Taphonomy of Art: Layer IV,Molodova I,Ukraine

Level IV of Molodova I, an open-air Middle Paleolithic site in the Ukraine has been described by some researchers as a possible source of evidence for early symbolic behavior. We examined bone objects from this layer that were identified by Ukrainian researchers as exhibiting possible Neandertal produced engravings including two anthropomorphic figures. While we have determined that there is no evidence of symbolic activity at Molodova I, the database we have created, with its systematic recording of traces left by taphonomic agents on faunal remains, provides a better understanding of the overall site taphonomy.