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Histological, chemical, and morphological reexamination of the “heart” of a small Late Cretaceous Thescelosaurus

Overview of attention for article published in Naturwissenschaften, January 2011
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (90th percentile)
  • High Attention Score compared to outputs of the same age and source (88th percentile)

Mentioned by

blogs
1 blog
twitter
3 tweeters
wikipedia
2 Wikipedia pages

Citations

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11 Dimensions

Readers on

mendeley
48 Mendeley
Title
Histological, chemical, and morphological reexamination of the “heart” of a small Late Cretaceous Thescelosaurus
Published in
Naturwissenschaften, January 2011
DOI 10.1007/s00114-010-0760-1
Pubmed ID
Authors

Timothy P. Cleland, Michael K. Stoskopf, Mary H. Schweitzer

Abstract

A three-dimensional, iron-cemented structure found in the anterior thoracic cavity of articulated Thescelosaurus skeletal remains was hypothesized to be the fossilized remains of the animal's four-chambered heart. This was important because the finding could be interpreted to support a hypothesis that non-avian dinosaurs were endothermic. Mammals and birds, the only extant organisms with four-chambered hearts and single aortae, are endotherms. The hypothesis that this Thescelosaurus has a preserved heart was controversial, and therefore, we reexamined it using higher-resolution computed tomography, paleohistological examination, X-ray diffraction analysis, X-ray photoelectron spectroscopy, and scanning electron microscopy. This suite of analyses allows for detailed morphological and chemical examination beyond what was provided in the original work. Neither the more detailed examination of the gross morphology and orientation of the thoracic "heart" nor the microstructural studies supported the hypothesis that the structure was a heart. The more advanced computed tomography showed the same three areas of low density as the earlier studies with no evidence of additional low-density areas as might be expected from examinations of an ex situ ostrich heart. Microstructural examination of a fragment taken from the "heart" was consistent with cemented sand grains, and no chemical signal consistent with a biological origin was detected. However, small patches of cell-like microstructures were preserved in the sandstone matrix of the thoracic structure. A possible biological origin for these microstructures is the focus of ongoing investigation.

Twitter Demographics

The data shown below were collected from the profiles of 3 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 48 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 4%
Italy 1 2%
South Africa 1 2%
United Kingdom 1 2%
Argentina 1 2%
Netherlands 1 2%
Unknown 41 85%

Demographic breakdown

Readers by professional status Count As %
Researcher 10 21%
Student > Ph. D. Student 9 19%
Student > Bachelor 7 15%
Student > Doctoral Student 6 13%
Student > Master 5 10%
Other 11 23%
Readers by discipline Count As %
Earth and Planetary Sciences 24 50%
Agricultural and Biological Sciences 18 38%
Unspecified 2 4%
Social Sciences 2 4%
Physics and Astronomy 1 2%
Other 1 2%

Attention Score in Context

This research output has an Altmetric Attention Score of 14. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 February 2019.
All research outputs
#1,059,004
of 12,986,005 outputs
Outputs from Naturwissenschaften
#206
of 1,456 outputs
Outputs of similar age
#13,893
of 147,614 outputs
Outputs of similar age from Naturwissenschaften
#2
of 18 outputs
Altmetric has tracked 12,986,005 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 91st percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,456 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.0. This one has done well, scoring higher than 85% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 147,614 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 90% of its contemporaries.
We're also able to compare this research output to 18 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 88% of its contemporaries.