↓ Skip to main content

Semiaquatic adaptations in a giant predatory dinosaur

Overview of attention for article published in Science, September 2014
Altmetric Badge

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

dimensions_citation
113 Dimensions

Readers on

mendeley
203 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

Nizar Ibrahim, Paul C. Sereno, Cristiano Dal Sasso, Simone Maganuco, Matteo Fabbri, David M. Martill, Samir Zouhri, Nathan Myhrvold, Dawid 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 427 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 203 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 1%
Brazil 3 1%
Canada 2 <1%
Argentina 2 <1%
Germany 1 <1%
Chile 1 <1%
Unknown 191 94%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 41 20%
Researcher 34 17%
Student > Ph. D. Student 32 16%
Student > Master 23 11%
Other 11 5%
Other 32 16%
Unknown 30 15%
Readers by discipline Count As %
Earth and Planetary Sciences 66 33%
Agricultural and Biological Sciences 60 30%
Environmental Science 11 5%
Chemistry 7 3%
Neuroscience 6 3%
Other 19 9%
Unknown 34 17%

Attention Score in Context

This research output has an Altmetric Attention Score of 1303. 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 12 May 2022.
All research outputs
#7,000
of 21,200,954 outputs
Outputs from Science
#415
of 76,320 outputs
Outputs of similar age
#39
of 217,070 outputs
Outputs of similar age from Science
#3
of 901 outputs
Altmetric has tracked 21,200,954 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 76,320 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 59.5. 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 217,070 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 901 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.