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BioAnthro#2
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99
Anthropology
Undergraduate 1
11/12/2011

Additional Anthropology Flashcards

 


 

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Term
Hominin
Definition
colloquial term for members of the evolutionary group that includes modern humans and now extinct bipedal relatives
Term
Mosaic evolution
Definition
A pattern of evolution in which the rates of evolution in one functional system vary from those in other systems
Term
Paleoanthropology
Definition
the study of ancient humans
Term
Artifacts
Definition
Objects of materials made and modified for use by hominins. The earliest are usually made of stone or occasionaly bone.
Term
Taphonomy
Definition
The study of how bones and other materials came to be buried in the earth and preserved as fossils
Term
Olduvai Gorge
Definition
  • East Africa;
  •  Louis and Mary Leaky conduced continuous excavations from the 1930s to the early 1980s. 
  • More than 150 species of extinct animals. 
  • Provides clues to the ecological conditions of early hominin habitats.
  • Special to paleoanthropologists because:  Faulting exposes geological beds near the surface. Active volcanic processes cause rapid sedimentation which preserves bone and artifacts. Volcanic activity provides a wealth of radiometricaly datable material.
Term
Zinjanthropus
Definition
now part of the genus paranthropus. Zinjanthropus cranium was discovered by Mary Leakey at Olduvai Gorge in 1959.
Term
Relative dating
Definition
tells us that something is older or younger than something else, but not by how much
Term
Chronometric dating
Definition
Dating technique that gives an estimate in actual nubers of years; also known as absolute dating
Term
Half-life
Definition
the time period in which one half the amount of a radioactive isotope is converted chemically to a daughter product
Term
Culture
Definition
Behavioral aspects of human adaptation, which includes: technology, traditions, language, religion, marriage, patterns, and social roles. (set of learned behaviors enhanced from one generation to the other)
Term
Stratigraphy
Definition
study of the sequential layering of deposits
Term
Principle of superposition
Definition
a lower stratum (layer) is older than a higher stratum
Term
Fluorine analysis
Definition
applies to buried bones and groundwater seepage. bones incorporate fluorine dating during fossilization.
Term
Biostratigraphy
Definition
a relative dating technique based on the regular changes seen in evolving groups of animals as well as the presence of absence of particular species
Term
Paleomagnetism
Definition
based on the shifting of the geometric pole
Term
Thermoluminiscence
Definition
technique for dating certain archaeological materials (such as stone tools) that were heated in the past and that release stored energy of radioactive decay as light upon reheating.
Term
Potassium/Argon (k/Ar)
Definition
chronometric technique used to date early hominins/materials in the 1-5 million year range. Potassium-40 contains a half life (time period in which one-half the amount of a radioactive isotope is converted chemically to a daughter product) of 1.25 billion years and produces Argon-40.
Term
Carbon-14
Definition
Radiometric method popular with archaeologists, contains a half life of 5,730 years. Used to date organic materials, such as: bonesm wood, cloth, and plan remain. Applies to later stages of hominin evolution. Range is less than 1,000-75,000 years (accuracy is reduced for materials more than 40,000 years old).
Term
Stable Carbon Isotopes
Definition
isotopes of carbon that are produced in plants in differing proportions, depending on environmental conditions. By analyzing the proportions of the isotopes contained in fossil remains of animals (who ate the plants), it's possible to reconstruct aspects of ancient environments (particularly temperature and aridity)
Term
Knapping
Definition
making stone tools. (knappers-people who make stone tools)
Term
Flake
Definition
thin-edged fragment removed from a core
Term
Core
Definition
stone reduced by flake removal (may/may not itself be used as a tool)
Term
Direct Percussion
Definition
striking a core or flake with a hammerstone
Term
Pressure Flaking
Definition
A method of removing flakes from a core by pressing a pointed implement (bone, antler, etc) against the tools
Term
Lithic
Definition
referring to the production of stone tools
Term
Microliths
Definition
small stone tools usually produced from narrow blades punched from a core; found especially in Africa during the latter part of the Pleistocene
Term
Microwear
Definition
the polish left on experimental flint implement after scraping wood for 10 min. Bright smooth area are the microwear polish. Dark grainy areas of unworn flint surface. Arrows indicate implement edge. Can tell how the tool was used.
Term
Phytoliths
Definition
Microscopic silica structures formed in the cells of many plants, particularly grass
Term
Environmental Determinism
Definition
an interpretation that links simple environmental changes directly to a major evolutionary shift in an organism. Such explanations tend to oversimplify the evolutionary process.
Term
Theories for Bipedalism
Definition
ability to carry objects (and offspring), hunting on the ground, gathering of seeds and nuts, feeding from bushes, improved thermoregulation, having a better view of open country (to spot predators), walking long distances, and provisioning by males and females with dependent offspring
Term
Habitual Bipedalism
Definition
bipedal locomotion as the form of locomotion shown by hominins most of the time
Term
Obligate Bipedalism
Definition
bipedalism as the only form of hominin locomotion
Term
Morphological Changes Associated with Bipedalism
Definition
1. Highly derived feed (large toe is enlarged and put in line with the rest of the toes, longitudinal arch is formed which helps to absorb shock and adds a propulsive spring)
2. Re-positioning of the foramen magnum underneath the skull so that the head is more or less balanced on the spine (this requires less robust neck muscles to hold the head upright).
3. The spine has to distinctive curves -- a backward(thoracic) one and a forward (lumbar) one that keeps the trunk (and weight) centered above the pelvis
4. The pelvis is shaped more in the form of a basin to support internal organs
5. The lower limbs are elongated (for example, human thigh=20% of body height, while gorilla thigh- 11% of body height)
6. Femur is angled inward, which keeps the leg more directly under the body; modified knee anatomy also permits full extension of the knee joint.
Term
Os Coxae
Definition
aka iliac blades, are shorter and broader in humans, which stabilizes weight transmission as we walk upright
Term
Foramen Magnum
Definition
the location on the skull where the spinal cord connects. Positioning directly under the skull implies bipedalism.
Term
Pre-Australopiths
Definition
Term
Sahelanthropus Tchadensis
Definition
Where: Chad
When: 6-7 mya
What found: Nearly complete cranium
Characteristics: Flat face, bipedal placement of the foramen magnum, massive browridges, small brain 350 cc.
Term
Orrorin Tugenensis
Definition
Where: Tugen Hills, Kenya
When: 6 mya
What Found: thigh, arm, lower jaw, teeth
Ape-Like Features: Chimp like teeth, post cranial climbind adaptations
Hominin Features: Bipedal, thick tooth enamel
Term
Ardipithecus
Definition
(2 species)
Where: Ethiopia
When: 5.8-4.4 mya
What: teeth, foot, bones, cranial bones, upper forelimbs
2 Species:
-Kadabba: Ape like features: Canine sharpened against premolar.
Hominin Features: bipedal, thick enamel
-Ramidus:
Aple like features: small molars, thin enamel.
Hominin Features: incisor like canines, forward placement of foramen magnum
Term
Australopithecus Anamensis
Definition
4.2-3.9 mya, earliest australopiths, come from East Africa and from a couple sites in Northern Kenya. Postcranial pieces clearly indicate bipedal locomotion. However, has some primitive features in dentition including a large canine and a sectorial first premolar. These fossils are more primitive than all the later members of the genus Austrolapithecus
Term
Austrolopithecus Afarensis
Definition
3.6 - 3.0 mya Found in sites of Hadar( in Ethiopia) and Laetoli( in Tanzania) A. afarensis knee joint resembles human knee, suggests bipedalism.(Lucy 3.2 mya) Has ape-like skull but bipedal locomotor pattern. (Laetoli Footprints 3.5 mya) 75 ft trail, three individuals, impression patterns clearly show bipedal locomotion. (Dikika Child 3.3-3.2 mya) foot and lower limb indicate terrestrial bipedalism, yet shoulder and curved fingers suggest arboreal ease. Teeth quite primitive, canines are large and pointed, lower first premolar is semisectorial, teeth rows are parallel and even converging somewhat toward the back of the mouth. A. afarensis conlusively a habitual biped, not necessarily precludes arboreal behavior altogether though. Avg. brain capacity is 438 cm cubed. Some individuals(males?) have cranial capacity of 500 cm cubed while other individuals(females?) have a cranial capacity of only 375 cm cubed.
Term
Paranthropus Boisei
Definition
Where: East Africa
When: 2 mya
Characteristics: Small cranial capacity (510-530 cubed) extremely robust in terms of teeth and jaws, sagittal crest
Term
Paranthropus Robustus
Definition
Where: South Africa
When: 2-1.2 mya
Characteristics: Small cranial capacity, also very robust in terms of teeth and jaws (not like P. Boisei), saggital crest
Term
Paranthropus Aethiopicus
Definition
2.4 mya, East Africa (Black Skull from W. Lake Turkana) compound crest in back of skull (Sagittal and Nuchal crest) broad face, large palate, and large area for back teeth
Term
Australopithecus Africanus
Definition
2.5-2.0 mya, South Africa, They were small brained ( adult cranial capacity of 440 cm cubed), big-toothed (though not as much as Paranthropus), well-adapted bipeds.
Term
Laetoli footprints
Definition
75 ft trail of hominin footprints. 3 individuals. Found by Mary Leaky and colleagues, 3.5 my bp. Made in ash; stayed well perserved
Term
Lucy
Definition
(Lucy 3.2 mya) Has ape-like skull but bipedal locomotor pattern. Discovered at Hadar in 1974, belongs to A. afarensis
Term
Dikika child
Definition
-large part of skeleton discovered in 2001. Immature A. afarensis. 3 years old. "mixed" locomotion. Feet suggest walking curved fingers and scapula suggest arboreal ease
Term
Sagittal crest
Definition
a ridge of bone that runs down the middle of the cranium like a short Mohawk. This serves as the attachment for the large temporal muscles, indicating strong chewing.
Term
Brow ridges
Definition
aka supraorbital tori (torus for singular) characteristic in a robust form of varying degrees of: Homo erectus, Sanhelanthropus tchadensis, and Paranthropus aethiopicus among others.
Term
Taung child
Definition
discovered in 1924. The endocast is in back with fossilized bone mandible and face in front. A. africanus. Very first early hominin discovery from Africa( or anywhere else for that matter)
Term
Endocast
Definition
Solid impression of the inside of the skull, details relating to brain's size and surface.
Term
Homo habilis
Definition
Plio-Pleistocene(5.0-1.0 mya) hominin at Olduvai Gorge, significantly larger brain than Australopithecines. Referred to as early Homo, dubbed Homo habilus by Louis Leakey and colleagues. Shows an increase in cranial size of about 20% over the larger of the Australopithecines. Associated with Oldowan( earliest known stone tool industry), Leakey argued H. habilus were early Olduvai toolmakers. H. habilus material at Olduvai gorge dates to 1.8 mya.
Term
Olduwan tool industry
Definition
the earliest known tool industry, discovered at Olduvai Gorge. Often depicted as "chopping tool industry".
Term
Homo erectus
Definition
(timing, range, morphology) - 1.8 mya - 100 kya. Headed north from Kenya to Republic of Georgia to Dmanisi, in the Caucasus region. Had a low forehead, large brow ridges(supraorbital tori), large back teeth, shovel shaped incisors, thick cranial bones, sagittal ridge, nuchal torus, broad skull base, and cranial capacity of 700-1250 cm cubed(25% increase relative to Early Homo.) Body size dramatically increased relative to earlier hominins(esp. increased robusticity).
Term
Aechulian tool industry
Definition
invented about 1.4 mya(after emigration of H. erectus from Africa). Core was worked on both sides, called a biface(known widely as a handaxe or cleaver), biface had a flatter shape than rounder earlier Oldowan cores. In Acheulian culture raw materials transported more consistently for longer distances, whereas in Oldowan all stone tools were found very close to their raw material sources. Biface was the "Acheulian Swiss army knife" , used to cut, scrape, pound, and dig.
Term
East Turkana (what found, when from)
Definition
Nearly complete skull of H. erectus dated to 1.8 mya
Term
Nariokotome(what found, when from)
Definition
most complete H. erectus skeleton ever found(WT15000), dated to 1.6 mya
Term
Dmanisi(what found, when from)
Definition
four crania and several postcranial bones coming from at least four individuals( note that skull and postcranial bones not necessarily from same individuals) dated: 1.8-1.7 mya
Term
Trinil (what found, when from)
Definition
skull cap, dated 1.6-1.0 mya
Term
Ngangdong (significance, what found, when from)
Definition
very late survival of H. erectus, contemporary of H. Sapiens. fourteen individuals' fossils found, Book date: 70-40 kya, Class notes date: 50-25 kya
Term
Zhokoudian (significance, what found, when from)
Definition
Largest, most famous sample of H. erectus, wide age range of individuals, shows some H. erectus populations were well adapted to temperate(cold) environments. 40 male and female adults and children found, dated: 780-(?)400,000 kya
Term
Atapuerca, Spain (significance, what found, when from)
Definition
oldest evidence of hominins in western Europe, possibly not Homo erectus. partial jaw with a few teeth(Sima del Elefante), dated to 1.2 mya
Term
Difference between Asian and African erectus
Definition
East African specimens are not as buttressed at the brow ridge and nuchal torus and have thinner cranial bones than those found in Asia. The African and Asian populations are seperated by more than 1 million years.
Term
Middle Pleistocene
Definition
780,000 - 125,000 years ago, most premodern human populations replaced H. erectus in the Old World. Long period of coexistence in Southeast Asia of H. erectus and premodern humans. Early premodern humans similar to H. erectus, but have some features that were more derived. They possessed an increased brain size, a more rounded braincase, a more vertical nose, and a less angled back of the skull(occipital).
Term
Upper Pleistocene
Definition
aka Late Pleistocene, 125,000 - 10,000 years ago, end of H. Heidelbergensis, appearance and disappearance of Neanderthals and appearance of Homo sapiens.
Term
Pleistocene environmental change
Definition
due to glaciation and interglacials,glaciation results in colder temperatures in northern latitudes and more arid conditions in southern latitudes(notably in Africa).Interglacials result in those northern latitudes becoming warmer and the said souther latitudes becoming wetter.
Term
Homo heidelbergensis (timing, range, morphology)
Definition
600,000 - 125,000 years ago, Found in South and East Africa, England, France, Spain, Germany, and Greece in Europe, and China in Asia. occipital region is less angulated, the cranial vault bones are thinner, and the cranial base is essentially modern, increased cranial capacity, reduced tooth size, and parietal expansion.
Term
Kabwe (significance, what found, when from)
Definition
had a mosaic of features(browridge very robust, but braincase expanded). (Note to the reader: read "mosaic" in the sense of mosaic evolution.). Nearly complete skull was found, dated to 130,000+ years ago.
Term
Bodo (significance, what found, when from)
Definition
earliest evidence of deliberate bone processing of hominins by hominins. A nearly complete cranium was found dated to 600,000 years ago.
Term
Swanscombe (significance, what found, when from)
Definition
considerable brain expansion, partial skull dated: 300,000? - 259,000? years ago
Term
Atapuerca (significance, what found, when from)
Definition
very early evidence of Neandertal ancestry(>500,000 years ago); earliest evidence of deliberate body disposal of the dead anywhere. at least 28 individuals were recovered and dated: 600,000 or 500,000 to 400,000 years ago.
Term
Dali (significance, what found, when from)
Definition
best evidence of H. heidelbergensis in Asia, a nearly complete skull was found and dated: 230,000 - 180,000 years ago
Term
Jinniushan (significance, what found, when from)
Definition
some chinese scholars suggest it as possible ancestor of early Chinese H. sapiens. A partial skeleton was found with cranium showing relatively large brain size dated to 200,000 years ago.
Term
Levallois tool technique
Definition
beginning with a nodule and chipping it on the perimeter, flakes are then radially removed from the top surface, once that has been done a final blow struck at one end removes large flake which is the goal of the whole process and is the completed tool. Look at Fig. 3-10 on pg. 377 for pictorial clarification.
Term
Homo neandertalensis (timing, range, morphology)
Definition
130,000 - 10,000 years ago, Found through out Europe and Southwest Asia. Had larger brains than modern humans (modern = 1,300-1,400 cm cubed, neandertal = 1520 cm cubed), cranium large, long, low, and bulging at the sides, had occipital bun, marked occipital angle typical of many H. erectus crania is absent, forehead rises more vertically than that of H. erectus, the browridges arch over the orbits instead of forming a straight bar, a projecting face, and a very robust build.
Term
La Chapelle-aux-saints (significance, what found, when from)
Definition
historically provided an early, but distorted, interpretation of Neandertals. A nearly complete skeleton in a flexed position dated to 50,000 years ago
Term
Moula-Guercy (significance, what found, when from)
Definition
evidence of Neandertal cannibalism. 78 broken skeletal fragments from six individuals whose bones had been processed, defleshed, and disarticulated in the same way as deer and are dated: 120,000 - 100,000 years ago.
Term
Krapina, Croatia (significance, what found, when from)
Definition
one of the oldest intentional burial sites on record, possibly the earliest site showing the full suite of classic Neandertal morphology. 1,000 fragments from 70 individuals were found dating: 130,000 - 110,000 years ago.
Term
Shanidar 1 (significance, what found, when from)
Definition
testament to Neandertal compassion and humanity. nine individuals found, one of which was the skeleton of a crippled, partially blind, one-armed man all, these were dated: 70,000 - 60,000 years ago.
Term
Mousterian tool technique
Definition
First, a flint nodule was trimmed around the edges to form a disk-shaped core. Then, the core was struck repeatedly, producing a flake at each strike until the core became to small and was tossed away. Finally, the flakes were reworked into various forms, including scrapers, points and knives.
Term
Homo sapiens (timing, range, morphology)
Definition
195,000 years ago to present. Europe, Australia, Southeast Asia, China, Near East(Israel), and Africa, in essence most of the Old World. Have a vertical forehead, relatively small browridges, canine fossa(depression on the outside of the upper jaw above the canine teeth), pyramidal mastoid process, and a definite chin.
Term
Omo I (significance, what found, when from)
Definition
the oldest modern human found anywhere. Two crania were found Omo 1(more modern looking) and Omo 2(more robust, less modern looking). Omo 1 is dated to 195,000 years ago, Omo 2 seemingly of the same age but not necessarily.
Term
Herto, Ethiopia (significance, what found, when from)
Definition
The best preserved modern H. sapien cranium yet found and also the most well dated of its period. A cranium was found and dated: 160,000-154,000 years ago
Term
Skhul 5 – Israel (significance, what found, when from)
Definition
thought to be representatives of early modern H. sapiens, the vault height, forehead, and lack of prognathasm are all modern traits. At least 10 individuals were found one of which was Skhul 5. Skhul (meaning the site and including Skhul 5) is dated: 130,000 - 100,000 years ago
Term
Qafzeh 6 – Israel (significance, what found, when from)
Definition
Large sample which is definitely modern, although some individuals are fairly robust. At least 20 individuals were found one of which was Qafzeh 6. Qafzeh ( once again meaning the site and including Qafzeh 6) is dated: 120,000 - 92,000 years ago
Term
Dolni Vestonice (significance, what found, when from)
Definition
represent good examples of early modern H. sapiens in central Europe. A cranium was found and dated to about 26,000 years ago.
Term
Cro Magnon (significance, what found, when from)
Definition
According to the book, the significance is that this is the earliest evidence of modern humans in France, According to Prof. Nelson and the notes in Lecture it is because this is the original model for an Upper Paleolithic "race" of Europeans. The book mentions this but goes on to say it is invalid(see pg. 417).
Term
Complete Replacement Model
Definition
"Out of Africa", recent African Evolution. Developed by British paleoanthropologists Christopher Stringer and Peter Andrews. Proposes anatomically modern populations arose in Africa in the last 200 ky. Migrated from Africa, completely replacing populations in Europe and Asia. Does not accont for the transition from archiac H. sapiens to modern H. sapiens anywhere except Africa. Between 100-200 kya, modern humans arose in Africa and spread outward to replace Neanderthals and other pre-modern humans. Little or no gene flow between Neanderthals.
Term
Regional Continuity Model
Definition
-(Associated with paleoanthropologists Milford and Wilpoff of the University of Michigan) Populations in Europe, Asia and Africa continued evolutionary development from Archaic H. sapiens to anatomically modern humans. Gene flow links human populations H. erectus/egaster eveolves in modern H. sapiens. Regional variation apparent amongst different human populations. Morphological resembllances exist between modern humans and archaic H. sapiens in each region because of a continuous line of descent.
Term
Partial Replacement Model
Definition
(Poposed by Gunter Brauer of the University of Hamburg) Postulates the earliest dates for African modern H. sapiens at over 100 kya. initial dispersal of H. sapiens sapiens from S. Africa was influenced by environmental conditions. Moving into Eurasia, modern humans hybridized with resident groups, eventually replacing them. The disappearance of archaic humans was due to hybridization and replacement.
Term
mtDNA
Definition
DNA found in the mitochondria. Mitochondrial DNA is only inherited form the mother.
Term
Flores hominids
Definition
(95,000-13,000 ya) Southeast Asia, Flores (Indonesia). H. floresiensis. Late survival of very small-bodied and small-brained hominin on island of Flores; designated as different species from modern humans.
Term
Emergence of art (significant dates and locations)
Definition
(pages 426-428) 1) Dolni Vestonice and Predmosti: (27,000-26,000 ya in the Czech Republic) Found small animal figures were fashioned from fire clay, ceramic technology. 2)Lascaux Cave (France) immense wild bulls=Great Wall of Bulls; and horses and deer, and other animals were drawn in yellow, black , red. 3) Altamira (Spain) walls and ceilings filled with bisons in red and black. Images can reflect religous or magical, visual communication, or simply art. 4) Grotte Chauvet ( France, 35,000 ya through radiocarbon dating, during the "Aurignacian") Images include dots, stenciled human handprints, many animals representation 5) Apollo 11 Rock shelter site (Africa Namibia, 28,000 & 26,000 ya) painted slabs.
Term
Punch blade technique
Definition
(1) A portion is removed from the core (2) the objective is to create a flat surface called striking platform (3) the core is struck by the use of a hammer and punch (made of bone or antler) to remove the long narrow flakes called blades (4) Or the blades can be removed by pressure flaking (5) The result/product can be used as knives or other tools.
Term
Solutrean Stonework
Definition
good examples of Upper Paleolithic skill and likely aesthetic appreciation as well. In this Lithic (stone) tradition, stoneknapping developed to the finest degree. Using specialized techniques, the artist/technicians made parallel-flaked lance heads on both surfaces. Some lance points were considered as a work of art due to it's delicacy and were not utilized.(pg 425)
Term
Magdalenian
Definition
Pertaining to the final phase of Upper Paleolithic stone tool industry in Europe ( highly advanced)
Term
Châtelperronian
Definition
was the earliest industry of the Upper Palaeolithic in central and south western France, extending also into Northern Spain. It derives its name from the site of la Grotte des Fées, in Châtelperron, Allier, France. It arose from the earlier, Mousterian industry. It made use of the Levallois technique of lithic reduction (stone-knapping) and lasted from between c. 35,000 and c. 29,000 BP.
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