Evidence of fatal skeletal injuries on Malapa Hominins 1 and 2

Malapa is one of the richest early hominin sites in Africa and the discovery site of the hominin species, Australopithecus sediba. The holotype and paratype (Malapa Hominin 1 and 2, or MH1 and MH2, respectively) skeletons are among the most complete in the early hominin record. Dating to approximately two million years BP, MH1 and MH2 are hypothesized to have fallen into a natural pit trap. All fractures evident on MH1 and MH2 skeletons were evaluated and separated based on wet and dry bone fracture morphology/characteristics. Most observed fractures are post-depositional, but those in the right upper limb of the adult hominin strongly indicate active resistance to an impact, while those in the juvenile hominin mandible are consistent with a blow to the face. The presence of skeletal trauma independently supports the falling hypothesis and supplies the first evidence for the manner of death of an australopith in the fossil record that is not attributed to predation or natural death

The first hominin of Europe

The earliest hominin occupation of Europe is one of the most debated topics in palaeoanthropology. However, the purportedly oldest of the Early Pleistocene sites in Eurasia lack precise age control and contain stone tools rather than human fossil remains(1-5). Here we report the discovery of a human mandible associated with an assemblage of Mode 1 lithic tools and faunal remains bearing traces of hominin processing, in stratigraphic level TE9 at the site of the Sima del Elefante, Atapuerca, Spain(6-8). Level TE9 has been dated to the Early Pleistocene ( approximately 1.2 - 1.1 Myr), based on a combination of palaeomagnetism, cosmogenic nuclides and biostratigraphy. The Sima del Elefante site thus emerges as the oldest, most accurately dated record of human occupation in Europe, to our knowledge. The study of the human mandible suggests that the first settlement of Western Europe could be related to an early demographic expansion out of Africa. The new evidence, with previous findings in other Atapuerca sites ( level TD6 from Gran Dolina(9-13)), also suggests that a speciation event occurred in this extreme area of the Eurasian continent during the Early Pleistocene, initiating the hominin lineage represented by the TE9 and TD6 hominins.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/62855/1/nature06815.pd

Microvertebrates preserved in mammal burrows from the Holocene of the Argentine Pampas: a taphonomic and paleoecological approach

Microvertebrates are a major component of many assemblages recovered from the Quaternary of the Argentine Pampas. The main goal of this paper is to analyse the taphonomic history of a Holocene microfossil bonebed, recovered from the infilling of a burrow. Evidences suggest the plains vizcacha Lagostomus maximus as the putative producer of the burrow. The assemblage includes individuals belonging to different taxa of mammals (marsupials and rodents) and reptiles (snakes). Taphonomic features suggest that the accumulation inside the burrow was related to flooding processes in the plain. The burrow was a natural trap that favoured the accumulation and preservation of remains corresponding to individuals from different sources. According to the taphonomic evidence, some individuals (Lagostomus maximus, Lestodelphys halli and Serpentes indet.) died inside the burrow, whereas others (Microcavia australis, Reithrodon auritus and Ctenomys sp.) died outside the burrow, and after a time of being exposed on the surface their remains were transported by surface run-offs into the burrow. The record of Lestodelphys halli and Serpentes indet. in the burrow produced by Lagostomus maximus could be related to a circumstantial use. Mammal burrows are a significant taphonomic mode for the late Cenozoic of the Argentine Pampas

The Atapuerca sites and the Ibeas hominids

The Atapuerca railway Trench and Ibeas sites near Burgos, Spain, are cave fillings that include a series of deposits ranging from below the Matuyama/Bruhnes reversal up to the end of Middle Pleistocene. The lowest fossil-bearing bed in the Trench contains an assemblage of large and small Mammals including Mimomys savini, Pitymys gregaloides, Pliomys episcopalis, Crocuta crocuta, Dama sp. and Megacerini; the uppermost assemblage includes Canis lupus, Lynx spelaea, Panthera (Leo) fossilis, Felis sylvestris, Equus caballus steinheimensis, E.c. germanicus, Pitymys subtenaneus, Microtus arvalis agrestis, Pliomys lenki, and also Panthera toscana, Dicerorhinus bemitoechus, Bison schoetensacki, which are equally present in the lowest level. The biostratigraphic correlation and dates of the sites are briefly discussed, as are the paleoclimatic interpretation of the Trench sequences. Stone artifacts are found in several layers; the earliest occurrences correspond to the upper beds containing Mimomys savini. A set of preserved human occupation floors has been excavated in the top fossil-bearing beds. The stone-tool assemblages of the upper levels are of upper-medial Acheulean to Charentian tradition. The rich bone breccia SH, in the Cueva Mayor-Cueva del Silo, Ibeas de Juarros, is a derived deposit, due to a mud flow that dispersed and carried the skeletons of many carnivores and humans. The taxa represented are: Vrsus deningeri (largely dominant), Panthera (Leo) fossilis, Vulpes vulpes, Homo sapiens var. Several traits of both mandibular and cranial remains are summarized. Preliminary attempts at dating suggest that the Ibeas fossil man is older than the Last Interglacial, or oxygen-isotope stage 5

Cannibalism in Britain: Taphonomy of the Creswellian (Pleistocene) faunal and human remains from Gough\u27s Cave (Somerset, England)

Human induced damage is the main taphonomic modification observed on the fossil bone assemblage of Gough\u27s cave. Fossils from this site are very fragmentary, showing abundant cut-marks, percussion marks and peeling. Some specimens, however, are complete (ribs, vertebrae, carpal-tarsal bones and phalanges), but these elements are characterised by low marrow content where breakage to open the bone is not needed. Human remains recovered from this site show similar butchering patterns to other animals suggesting skinning, dismembering, defleshing and marrow extraction activities. Excavations during the 1986–1987 seasons showed that the human remains appear at the site randomly mixed with animal bones, with no specific distribution or arrangement of human bones. The evidence from this distribution indicates equal treatment of human and animal remains, and the analysis of cut-marks and other modifications suggests that both humans and animals were accumulated as the discarded food remains of the human population. This is interpreted as nutritional cannibalism. One exception to this is seen in the slight differences in skull treatment compared with other sites, suggesting a possible element of ritual cannibalism (cf Fontbrégoua, the French Neolithic site, ca 4000 BC)

Spy cave (Belgium) Neanderthals (36,000y BP). Taphonomy and peri-mortem traumas of Spy I and Spy II: Murder or accident

Spy Cave is one of the most iconic Pleistocene sites yielding two adult Neanderthal skeletons recovered in the 19th century. The cave is located in Belgium and is one of the most important sites for human evolution in European context. The remains of Spy definitively influenced the concept of Neanderthals as archaic fossil humans in relation to modern human populations. This paper shows the results of the taphonomic study of these human remains to investigate the cause of death of the two individuals, and why they occurred at this site, specifically whether they were buried. Excavation in the 19th century lacked some of the present-day methodology of excavation, and there is little information about context, but we have examined the taphonomic modifications of the bones of the two skeletons in comparison with the putative faunal remains found in the cave. Several hypotheses have been proposed for the Spy human remains, from human cannibalism to intentional funerary burials. We will try to clarify the possible cause of death and propose the most congruent hypothesis in the taphonomic context of these human remains, from accidental death due to falling limestone blocks to interpersonal violence

Experimental taphonomy: preliminary results of the digestion of micromammal bones in the laboratory

Preliminary experiments with acidic and enzymatic attack on rodent bones have been conducted in order to simulate digestion effects to gain a better understanding of the parameters that control digestion. This experiment shows that bone corrosion is controlled by enzymatic activity and probably time, and not only by low pH as proposed by several authors. A comparison with acid-soil corroded and fossilized bones shows great differences between surface modifications.Peer Reviewe