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Diprotodon is an extinct genus of large marsupials native to Australia from the Pleistocene epoch. It is considered one of Australia's core species of "megafauna", which ranged throughout the continent during the Pleistocene. The genus is currently considered monotypic, containing only Diprotodon optatum, the largest known marsupial to have ever existed. The word diprotodon is constructed from the Ancient Greek words for 'two forward teeth'. Diprotodon existed from about 1.6 million years ago until extinction some 44,000 years ago.
The skull is a bone structure that forms the head in vertebrates. It supports the structures of the face and provides a protective cavity for the brain. The skull is composed of two parts: the cranium and the mandible. In humans, these two parts are the neurocranium and the viscerocranium that includes the mandible as its largest bone. The skull forms the anterior-most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part of the facial skeleton.
Brachycephaly is the shape of a skull shorter than typical for its species. It is perceived as a desirable trait in some domesticated dog and cat breeds, notably the pug and Persian, and can be normal or abnormal in other animal species. In humans, the cephalic disorder is known as flat head syndrome, and results from premature fusion of the coronal sutures, or from external deformation. The coronal suture is the fibrous joint that unites the frontal bone with the two parietal bones of the skull. The parietal bones form the top and sides of the skull. This feature can be seen in Down syndrome.
Plagiocephaly, also known as flat head syndrome, is a condition characterized by an asymmetrical distortion of the skull. A mild and widespread form is characterized by a flat spot on the back or one side of the head caused by remaining in a supine position for prolonged periods.
Trephination in Mesoamerica has been practised by a number of pre-Columbian cultures in the Mesoamerican region, dating from at least the mid-Preclassic era, and continuing up to the late Postclassic, or ca. 1200 CE.
Solo Man is a subspecies of H. erectus that lived along the Solo River in Java, Indonesia, about 117,000 to 108,000 years ago in the Late Pleistocene. This population is the last known record of the species. It is known from 14 skullcaps, two tibiae, and a piece of the pelvis excavated near the village of Ngandong, and possibly three skulls from Sambungmacan and a skull from Ngawi depending on classification. The Ngandong site was first excavated from 1931 to 1933 under the direction of Willem Frederik Florus Oppenoorth, Carel ter Haar, and Gustav Heinrich Ralph von Koenigswald, but further study was set back by the Great Depression, World War II and the Indonesian War of Independence. In accordance with historical race concepts, Indonesian H. erectus subspecies were originally classified as the direct ancestors of Aboriginal Australians, but Solo Man is now thought to have no living descendants because the remains far predate modern human immigration into the area, which began roughly 55,000 to 50,000 years ago.
Panthera spelaea, also known as the Eurasian cave lion, European cave lion or steppe lion, is an extinct Panthera species that most likely evolved in Europe after the third Cromerian interglacial stage, less than 600,000 years ago. Phylogenetic analysis of fossil bone samples revealed that it was highly distinct and genetically isolated from the modern lion occurring in Africa and Central Asia. Analysis of morphological differences and mitochondrial data support the taxonomic recognition of Panthera spelaea as a distinct species that genetically diverged from the lion about 1.9 million years ago. Nuclear genomic evidence shows a more recent split approximately 500,000 years ago, with no subsequent interbreeding with the ancestors of the modern lion. The oldest known bone fragments were excavated in Yakutia and radiocarbon dated at least 62,400 years old. It became extinct about 13,000 years ago.
Dromornithidae, known as mihirungs and informally as thunder birds or demon ducks, were a clade of large, flightless Australian birds of the Oligocene through Pleistocene Epochs. All are now extinct. They were long classified in Struthioniformes, but are now usually classified as galloanseres.
Maya society concerns the social organization of the Pre-Hispanic Maya, its political structures, and social classes. The Maya people were indigenous to Mexico and Central America and the most dominant people groups of Central America up until the 6th century.
Sthenurus is an extinct genus of kangaroos. With a length around 3 m (10 ft), some species were twice as large as modern extant species. Sthenurus was related to the better-known Procoptodon. The subfamily Sthenurinae is believed to have separated from its sister taxon, the Macropodinae, halfway through the Miocene, and then its population grew during the Pliocene.
Paludirex is an extinct genus of mekosuchine crocodylians from the Pliocene and Pleistocene of Australia. Remains of this animal have been found in the Riversleigh lagerstätte of northwestern Queensland. It was a medium-sized crocodile, estimated to grow to at least 4 metres in length.
Artificial cranial deformation or modification, head flattening, or head binding is a form of body alteration in which the skull of a human being is deformed intentionally. It is done by distorting the normal growth of a child's skull by applying force. Flat shapes, elongated ones, rounded ones, and conical ones are among those chosen or valued in various cultures. Typically, the shape alteration is carried out on an infant, as the skull is most pliable at this time. In a typical case, headbinding begins approximately a month after birth and continues for about six months.
The Nodena Phase is an archaeological phase in eastern Arkansas and southeastern Missouri of the Late Mississippian culture which dates from about 1400–1650 CE. The Nodena Phase is known from a collection of villages along the Mississippi River between the Missouri Bootheel and Wapanocca Lake. They practiced extensive maize agriculture and artificial cranial deformation and were members of a continent wide trade and religious network known as the Southeastern Ceremonial Complex, which brought chert, whelk shells, and other exotic goods to the area.
Ali Kosh is a small Tell of the Early Neolithic period located in Ilam Province in west Iran, in the Zagros Mountains. It was excavated by Frank Hole and Kent Flannery in the 1960s.
The Kow Swamp archaeological site comprises a series of late Pleistocene burials within the lunette of the eastern rim of a former lake known as Kow Swamp. The site is 10 kilometres (6 mi) south-east of Cohuna in the central Murray River valley, in northern Victoria, at 35.953553°S 144.318123°E. The site is significant for archaeological excavations by Alan Thorne between 1968 and 1972 which recovered the partial skeletal remains of more than 22 individuals.
The Keilor archaeological site was among the first places to demonstrate the antiquity of Aboriginal occupation of Australia when a cranium, unearthed in 1940, was found to be nearly 15,000 years old. Subsequent investigations of Pleistocene alluvial terraces revealed hearths about 31,000 years BP, making Keilor one of the earliest sites of human habitation in Australia. Remains of megafauna suggest a possible association with Aboriginal hunting.
The Bodo cranium is a fossil of an extinct type of hominin species. It was found by members of an expedition led by Jon Kalb in 1976. The Rift Valley Research Mission conducted a number of surveys that led to the findings of Acheulean tools and animal fossils, as well as the Bodo Cranium. The initial discovery was by Alemayhew Asfaw and Charles Smart, who found a lower face. Two weeks later, Paul Whitehead and Craig Wood found the upper portion of the face. Pieces of the cranium were discovered along the surface of one of the dry branches of the Awash River in Ethiopia. The cranium, artifacts, and other animal fossils were found over a relatively large area of medium sand, and only a few of the tools were found near the cranium. The skull is 600,000 years old and is now the type specimen of Homo bodoensis. (formerly Homo heidelbergensis / Homo rhodesiensis).
The Dmanisi skull, also known as Skull 5 or D4500, is one of five skulls discovered in Dmanisi, Georgia and classified as early Homo erectus. Described in a publication in October 2013, it is estimated to be about 1.8 million years old and is the most complete skull of a Pleistocene Homo species, and the first complete adult hominin skull of that degree of antiquity. According to researchers, the discovery "provides the first evidence that early Homo comprised adult individuals with small brains but body mass, stature and limb proportions reaching the lower range limit of modern variation."
The region of Southeast Asia is considered a possible place for the evidence of archaic human remains that could be found due to the pathway between Australia and mainland Southeast Asia, where the migration of multiple early humans has occurred out of Africa. One of many pieces of evidence is of the early human found in central Java of Indonesia in the late 1800s by Eugene Dubois, and later in 1937 at Sangiran site by G.H.R. van Koenigswald. These skull and fossil materials are Homo erectus, named Pithecanthropus erectus by Dubois and Meganthropus palaeojavanicus by van Koenigswald. They were dated back to c. 1.88 and 1.66 Ma suggested by Swisher et al. by analysis of volcanic rocks.
The Dmanisi hominins, Dmanisi people or Dmanisi man were a population of Early Pleistocene hominins whose fossils have been recovered at Dmanisi, Georgia. The fossils and stone tools recovered at Dmanisi range in age from 1.85–1.77 million years old, making the Dmanisi hominins the earliest well-dated hominin fossils in Eurasia and the best preserved fossils of early Homo from a single site so early in time, though earlier fossils and artifacts have been found in Asia. Though their precise classification is controversial and disputed, the Dmanisi fossils are highly significant within research on early hominin migrations out of Africa. The Dmanisi hominins are known from over a hundred postcranial fossils and five famous well-preserved skulls, referred to as Dmanisi Skulls 1–5.
References
- 1 2 3 4 5 Monroe, M. H. (2011). "Coobool Creek". Australia: The Land Where Time Began. Retrieved 7 April 2013.
- 1 2 3 Brown, P. (2000). "Coobool Creek". www-personal.une.edu.au. Archived from the original on 27 April 2013. Retrieved 7 April 2013.
- ↑ Durband, A. (2013). "Artificial cranial deformation in Pleistocene Austrakians - The Coolbool Creek Sample". J Hum Evol. 54: 795–813. doi:10.1016/j.jhevol.2007.10.013. PMID 18243276.
- ↑ "The spread of people to Australia". Australian Museum. 2013. Retrieved 7 April 2013.
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