Richard A Ketcham
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Explore the profile of Richard A Ketcham including associated specialties, affiliations and a list of published articles.
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19
Citations
364
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Recent Articles
1.
Hanna R, Ketcham R, Edey D, OConnell J
Sci Rep
. 2022 May;
12(1):8369.
PMID: 35589740
Carbonaceous chondrites (CCs) contain the earliest preserved Solar System material, and objects containing this material are targets of numerous sample return missions. Both laboratory and remote sensing data have shown...
2.
Kappelman J, Ketcham R, Pearce S, Todd L, Akins W, Colbert M, et al.
Med Leg J
. 2019 Jun;
87(3):121-126.
PMID: 31232645
The Pliocene hominin fossil 'Lucy' (A.L. 288-1, ) was discovered in the Afar region of Ethiopia in 1974 and dates to 3.18 million years in age. In Kappelman et al.,...
3.
Ruff C, Burgess M, Ketcham R, Kappelman J
PLoS One
. 2016 Dec;
11(11):e0166095.
PMID: 27902687
While there is broad agreement that early hominins practiced some form of terrestrial bipedality, there is also evidence that arboreal behavior remained a part of the locomotor repertoire in some...
4.
Kappelman J, Ketcham R, Pearce S, Todd L, Akins W, Colbert M, et al.
Nature
. 2016 Aug;
537(7621):503-507.
PMID: 27571283
The Pliocene fossil 'Lucy' (Australopithecus afarensis) was discovered in the Afar region of Ethiopia in 1974 and is among the oldest and most complete fossil hominin skeletons discovered. Here we...
5.
Li Z, Ketcham R, Yan F, Maisano J, Clarke J
J Exp Zool B Mol Dev Evol
. 2016 Aug;
326(6):352-362.
PMID: 27511594
Diffusible iodine-based contrast-enhanced computed tomography presents a comparatively new tool kit for imaging fine-scale three-dimensional phenotypes that is rapidly becoming standard anatomical practice. However, relatively few studies have attempted to...
6.
Rowe T, Luo Z, Ketcham R, Maisano J, Colbert M
Sci Data
. 2016 Jun;
3:160040.
PMID: 27272251
We describe X-ray computed tomography (CT) datasets from three specimens recovered from Early Cretaceous lakebeds of China that illustrate the forensic interpretation of CT imagery for paleontology. Fossil vertebrates from...
7.
Li Z, Clarke J, Ketcham R, Colbert M, Yan F
BMC Physiol
. 2015 Dec;
15:5.
PMID: 26691327
Background: Iodine-based solutions have long been known to be effective in aiding the differentiation among soft tissues in both fundamental anatomical research and for clinical diagnoses. Recently the combination of...
8.
DeVore M, Kenrick P, Pigg K, Ketcham R
Am J Bot
. 2011 Jun;
93(12):1848-51.
PMID: 21642129
High resolution x-ray computed tomography (HRXCT) was used to image pyritized fossil fruits from the Lower Eocene London Clay flora to test the utility of this technique for paleobotanical application....
9.
Griffin N, DAout K, Ryan T, Richmond B, Ketcham R, Postnov A
J Hum Evol
. 2010 Jul;
59(2):202-13.
PMID: 20655571
The appearance of a forefoot push-off mechanism in the hominin lineage has been difficult to identify, partially because researchers disagree over the use of the external skeletal morphology to differentiate...
10.
Ryan T, Colbert M, Ketcham R, Vinyard C
Am J Phys Anthropol
. 2009 Nov;
141(4):583-93.
PMID: 19918988
The relationship between mandibular form and biomechanical function is a topic of significant interest to morphologists and paleontologists alike. Several previous studies have examined the morphology of the mandible in...