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Semiaquatic adaptations in a giant predatory dinosaur

Overview of attention for article published in Science, September 2014
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (99th percentile)

Citations

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100 Dimensions

Readers on

mendeley
185 Mendeley
citeulike
3 CiteULike
Title
Semiaquatic adaptations in a giant predatory dinosaur
Published in
Science, September 2014
DOI 10.1126/science.1258750
Pubmed ID
Authors

N. Ibrahim, P. C. Sereno, C. Dal Sasso, S. Maganuco, M. Fabbri, D. M. Martill, S. Zouhri, N. Myhrvold, D. A. Iurino

Abstract

We describe adaptations for a semiaquatic lifestyle in the dinosaur Spinosaurus aegyptiacus. These adaptations include retraction of the fleshy nostrils to a position near the mid-region of the skull and an elongate neck and trunk that shift the center of body mass anterior to the knee joint. Unlike terrestrial theropods, the pelvic girdle is downsized, the hindlimbs are short, and all of the limb bones are solid without an open medullary cavity, for buoyancy control in water. The short, robust femur with hypertrophied flexor attachment and the low, flat-bottomed pedal claws are consistent with aquatic foot-propelled locomotion. Surface striations and bone microstructure suggest that the dorsal "sail" may have been enveloped in skin that functioned primarily for display on land and in water.

Twitter Demographics

The data shown below were collected from the profiles of 431 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 185 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 2%
Brazil 3 2%
Canada 2 1%
Argentina 2 1%
Chile 1 <1%
Germany 1 <1%
Unknown 173 94%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 40 22%
Researcher 33 18%
Student > Ph. D. Student 33 18%
Student > Master 22 12%
Other 11 6%
Other 31 17%
Unknown 15 8%
Readers by discipline Count As %
Earth and Planetary Sciences 68 37%
Agricultural and Biological Sciences 57 31%
Environmental Science 11 6%
Chemistry 7 4%
Biochemistry, Genetics and Molecular Biology 6 3%
Other 17 9%
Unknown 19 10%

Attention Score in Context

This research output has an Altmetric Attention Score of 1237. 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 14 May 2021.
All research outputs
#5,523
of 17,731,282 outputs
Outputs from Science
#371
of 70,938 outputs
Outputs of similar age
#44
of 210,168 outputs
Outputs of similar age from Science
#4
of 902 outputs
Altmetric has tracked 17,731,282 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 70,938 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.8. This one has done particularly well, scoring higher than 99% 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 210,168 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 99% of its contemporaries.
We're also able to compare this research output to 902 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.