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Here we describe an extremely large and relatively complete (roughly 65%) skeleton of Tyrannosaurus rex (RSM P2523.8). Multiple measurements (including those of the skull, hip, and limbs) show that RSM P2523.8 was a robust individual with an estimated body mass exceeding all other known T. rex specimens and representatives of all other gigantic terrestrial theropods. Histological sampling of the fibula confirms that RSM P2523.8 is skeletally mature. The prevalence of incompletely coossified elements contradicts previous assertions that such unfused elements can be taken as indicators of somatic immaturity. As an extreme example of both ontogenetic maturity and osteological robustness, RSM P2523.8 offers support for prior hypotheses that a sampling bias occurs throughout the Dinosauria, making it likely that most taxa grew to significantly greater size than current known specimens indicate. This article is protected by copyright. All rights reserved.
This article was published in the following journal.
Name: Anatomical record (Hoboken, N.J. : 2007)
Research shows an increased symptom burden in young adult (YA) cancer patients compared with their older adult counterpart.
Adults' face processing may be specialized for the dimensions of young adult faces. For example, young and older adults exhibit increased accuracy in normality judgments and greater agreement in attra...
The concept of social foreground describes how adult offspring's socioeconomic resources may influence older adults' health and several studies have shown an association between socioeconomic position...
A lack of specialized knowledge about providing health care to older people decreases their health outcomes and quality of life. This article presents an innovative learning strategy for preregistrati...
Retirement is one of the most important later-life status transitions related to changes in workforce participation, lifestyle, and social roles among older adults. The purpose of this study was to in...
In response to the increasing rates of HIV/STD infections among women over the age of 50, especially minority women, and in the attempt to reduce HIV/STD risks for over ten million older a...
Consenting adult female patient felt by the provider to require gonorrhea/chlamydia endocervical testing will be asked to provide an additional self sample specimen. The specimen will be s...
The purpose of this research study is to compare two specimen collection techniques (vaginal vs. endocervical swab) to screen for sexually transmitted infections in pregnant women. Either ...
Use of remote coaching and walking plan prior to surgery will improve stamina and mobility in frail older adult surgical patients after surgery.
Health professions need to prepare for the large increase in the number of older people with OA requiring health services including TJA surgery. Older age and poor physical function influe...
The technique of spraying a tissue specimen with a thin coat of a heavy metal such as platinum. The specimen is sprayed from an oblique angle, which results in the uneven deposition of the coating. The varying thicknesses create a shadow effect and give a three-dimensional appearance to the specimen.
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Electron microscopy in which the ELECTRONS or their reaction products that pass down through the specimen are imaged below the plane of the specimen.
A solid, unencapsulated tumor of the KIDNEY composed of spindle mesenchymal cells that resemble FIBROBLASTS or muscle cells. The homogeneous mass typically extends into the renal parenchyma and replaces most of the kidney. In most cases, mesoblastic nephroma is benign and occurs in the fetus or newborn, and rarely in the older child or the adult.
Community centers for older adults and providers of resources for the community. In addition to providing services and activities for older adults that reflect the community's diversity, they link participants with resources offered by other agencies.
A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including Arthritis - inflammation of a joint causes pain, stiffness, and swelling with ...