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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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67 Dimensions

Readers on

mendeley
141 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 111 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 141 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 2 1%
Canada 2 1%
Argentina 2 1%
United States 2 1%
Brazil 2 1%
Chile 1 <1%
Unknown 130 92%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 30 21%
Student > Ph. D. Student 29 21%
Researcher 29 21%
Student > Master 18 13%
Other 9 6%
Other 26 18%
Readers by discipline Count As %
Earth and Planetary Sciences 52 37%
Agricultural and Biological Sciences 47 33%
Unspecified 11 8%
Environmental Science 10 7%
Chemistry 7 5%
Other 14 10%

Attention Score in Context

This research output has an Altmetric Attention Score of 889. 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 13 September 2019.
All research outputs
#5,133
of 13,533,353 outputs
Outputs from Science
#375
of 62,444 outputs
Outputs of similar age
#70
of 201,594 outputs
Outputs of similar age from Science
#4
of 905 outputs
Altmetric has tracked 13,533,353 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 62,444 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 44.6. 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 201,594 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 905 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.