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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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82 Dimensions

Readers on

mendeley
158 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 443 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 158 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 146 92%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 35 22%
Student > Ph. D. Student 30 19%
Researcher 29 18%
Student > Master 19 12%
Other 11 7%
Other 26 16%
Unknown 8 5%
Readers by discipline Count As %
Earth and Planetary Sciences 60 38%
Agricultural and Biological Sciences 50 32%
Environmental Science 11 7%
Chemistry 7 4%
Neuroscience 4 3%
Other 14 9%
Unknown 12 8%

Attention Score in Context

This research output has an Altmetric Attention Score of 1221. 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 26 May 2020.
All research outputs
#3,651
of 15,134,513 outputs
Outputs from Science
#268
of 65,773 outputs
Outputs of similar age
#44
of 203,717 outputs
Outputs of similar age from Science
#4
of 903 outputs
Altmetric has tracked 15,134,513 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 65,773 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 49.2. 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 203,717 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 903 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.