Bone Lab 2 (1)

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Georgia State University *

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2010

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Anthropology

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Dec 6, 2023

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2

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Andraos 1 Grace Andraos Dr. Pam Sezgin ANTH 2010 12 November 2020 Homework 8: Chapter 15 15-2 While cleaning the attic of an old house, someone found the skeletonized remains of an infant in a cedar chest. The remains were eventually brought to the forensic anthropologist, although along the way, some of the bones were misplaced. Eventually an infant skull was examined. The mental symphysis was unfused and none of the teeth had erupted. The occipital bone was in four pieces: the body (the squama), the right and left condyles, and the basilar bone. The cranial bones were thin and small. List the age range for each of the elements. What is the likely age estimate for the infant remains? The infant skull must have been under the age of 1 years old given the state of its mental symphysis, occipital bone, and cranial bones. The mental symphysis was found unjoined and since the mental symphysis was not fully formed this implies that the skull is at least younger than two years old, but added with the fact that none of the teeth have emerged is a sign that the infant is between the ages of 4 months old and a year old. The occipital bone was found in four different pieces which means that it had not yet developed through morphing the connective tissue to form bone tissue. Each of the four parts take a different amount of time to solidify and fuse but on average the squama will take 2 to 3 years and the right and left condyles and the basilar bone will take 6 years. Since the cranial bones were thin and small this adds to the fact that the infant’s bones were undeveloped and not yet fully formed. (Remington 2012)
Andraos 2 Citations Knapp, Sarah. “Occipital Bone.” Biology Dictionary , 11 June 2020, biologydictionary.net/occipital-bone/. Remington, Lee Ann. “Chapter 8 - Bones of the Skull and Orbit.” Clinical Anatomy and Physiology of the Visual System , 3rd ed., Butterworth-Heinemann, 2012, pp. 144–158. https://doi.org/10.1016/B978-1-4377-1926-0.10008-6 “Mandibular Symphysis.” ICOI , 13 Apr. 2020, www.icoi.org/glossary/mandibular-symphysis/. Williams, Frank L'Engle. “Primate Evolution.” Exploring Biological Anthropology An Integrated Lab Manual and Workbook, pp.(181-188)
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