File:Simosuchus clarki, a herbivorous notosuchian (Crocodylomorpha) at the Field Museum (8270849869).jpg
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Summary
DescriptionSimosuchus clarki, a herbivorous notosuchian (Crocodylomorpha) at the Field Museum (8270849869).jpg |
<a href="http://en.wikipedia.org/wiki/Simosuchus" rel="noreferrer nofollow">Simosuchus</a> in known from the Late Cretaceous [likely Maastrichtian (~70-65 mya)] deposits of the Maevarano Formation in Mahajanga Province, Madagascar (although recent findings suggest the genus may have also been present in India). It represents one of the last members of a strange group of crocodylomorphs (croc-like archosaurs that lie outside of the modern crocdylian crown group) called the <a href="http://en.wikipedia.org/wiki/Notosuchia" rel="noreferrer nofollow">notosuchians</a>, which, unlike modern crocs and many other fossil crocodylomorphs, were not simply large amphibious predators, but were comprised a wide array of diverse ecomorphotypes. Notable representatives include: the duck-like <a href="http://en.wikipedia.org/wiki/Anatosuchus" rel="noreferrer nofollow">Anatosuchus</a>, the armadillo-like <a href="http://en.wikipedia.org/wiki/Armadillosuchus" rel="noreferrer nofollow">Armadillosuchus</a>, the hypercarnivous <a href="http://en.wikipedia.org/wiki/Baurusuchus" rel="noreferrer nofollow">Baurusuchus</a> and <a href="http://en.wikipedia.org/wiki/Pissarrachampsa" rel="noreferrer nofollow">Pissarrachampsa</a>, the markedly heterodont and potentially herbivorous <a href="http://en.wikipedia.org/wiki/Chimaerasuchus" rel="noreferrer nofollow">Chimaerasuchus</a>, and the immensely bizarre <a href="http://en.wikipedia.org/wiki/Yacarerani" rel="noreferrer nofollow">Yacarerani</a>, which possessed rabbit-like anterior dentition. The radiation of notosuchians is in many ways reminiscent of the ecomorphological diversification seen in <a href="http://en.wikipedia.org/wiki/Therapsida" rel="noreferrer nofollow"> therapsids </a> in the Permian and Triassic, in which a supposedly primitive 'reptilian' grade of taxa evolve a suite of complex mammal-like skull shapes and dental morphologies, challenging our traditional notions of what these 'primitive' lineages were capable of, evolutionarily. One could argue that mammal-like tetrapods were probably inevitable. For a beautiful CT scan of Simosuchus, see Digimorph: <a href="http://www.digimorph.org/specimens/Simosuchus_clarki/" rel="noreferrer nofollow">www.digimorph.org/specimens/Simosuchus_clarki/</a> |
Date | |
Source | Simosuchus clarki, a herbivorous notosuchian (Crocodylomorpha) at the Field Museum |
Author | Dallas Krentzel |
Camera location | 41° 51′ 58.63″ N, 87° 37′ 02.58″ W | View this and other nearby images on: OpenStreetMap | 41.866285; -87.617383 |
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Licensing
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This image was originally posted to Flickr by Dallas Krentzel at https://flickr.com/photos/31867959@N04/8270849869. It was reviewed on 13 May 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 May 2021
Items portrayed in this file
depicts
some value
17 February 2012
41°51'58.626"N, 87°37'2.579"W
0.07692307692307692307 second
45 millimetre
400
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:18, 13 May 2021 | 3,872 × 2,592 (1.92 MB) | Sentinel user | Transferred from Flickr via #flickr2commons |
File usage
Metadata
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If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title |
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Camera manufacturer | SONY |
Camera model | DSLR-A300 |
Exposure time | 1/13 sec (0.076923076923077) |
F-number | f/4 |
ISO speed rating | 400 |
Date and time of data generation | 17:13, 17 February 2012 |
Lens focal length | 45 mm |
Short title |
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Orientation | Normal |
Software used | DSLR-A300 v1.00 |
File change date and time | 17:13, 17 February 2012 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 17:13, 17 February 2012 |
Meaning of each component |
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Image compression mode | 8 |
APEX brightness | 0.25 |
Exposure bias | −0.7 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 67 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |