File:World's smallest dinosaur tracks found at Wasson Bluff, Nova Scotia, Canada in 1984.jpg

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Original file ‎(2,105 × 1,166 pixels, file size: 1.81 MB, MIME type: image/jpeg)

Captions

Captions

Tiny dinosaur tracks from the Lower Jurassic of Nova Scotia

Summary[edit]

Description
English: World’s smallest dinosaur tracks found at Wasson Bluff, Nova Scotia, Canada on April 10, 1984 by amateur geologist Eldon George of Parrsboro, Nova Scotia. See coin (1 Canadian cent) for scale. The tracks, which belong to the ichnogenus Grallator, are preserved at the sole of a sandstone bed of the Lower Jurassic (Hettangian to Pliensbachian) McCoy Brook Formation of the Fundy Group, Newark Supergroup. The trackmakers probably were hatchlings of theropod dinosaurs.
Date
Source I scanned this photo from a copy given to me by Lisa Millar
Author Lisa Millar
Permission
(Reusing this file)
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This image has currency in it to indicate scale.

Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted.

Ideally, a photograph should include a ruler with the subject (example) or an added scale marking. SI ("metric") units are the most commonly used worldwide (see meter and centimeter).

Images with coins to indicate scale

Common coin diameters for reference:

  • U.S. dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.21 mm, 0.84 in
    • 10¢: 17.91 mm, 0.71 in
    • 25¢: 24.26 mm, 0.94 in
    • 50¢: 30.61 mm, 1.22 in
    • $1: 26.5 mm, 1.02 in
  • Canadian dollar (as of?):
    • 1¢: 19.05 mm, 0.75 in
    • 5¢: 21.2 mm, 0.83 in
    • 10¢: 18.03 mm, 0.71 in
    • 25¢: 23.88 mm, 0.94 in
    • 50¢: 27.13 mm, 1.07 in
    • $1: 26.5 mm, 1.02 in
    • $2: 28 mm, 1.1 in
  • Pound sterling as of 2021:
    • 1p: 20.32 mm, 0.8 in
    • 2p: 25.91 mm, 1.02 in
    • 5p: 18 mm, 0.71 in
    • 10p: 24.5 mm, 0.96 in
    • 20p: 21.4 mm, 0.84 in
    • 50p: 27.3 mm, 1.07 in
    • £1: 23.03–23.43 mm, 0.91–0.92 in
    • £2: 28.4 mm, 1.12 in
  • Euro as of 2002:
    • 1c: 16.25 mm, 0.64 in
    • 2c: 18.75 mm, 0.74 in
    • 5c: 21.25 mm, 0.84 in
    • 10c: 19.75 mm, 0.78 in
    • 20c: 22.25 mm, 0.88 in
    • 50c: 24.25 mm, 0.95 in
    • €1: 23.25 mm, 0.92 in
    • €2: 25.75 mm, 1.01 in

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Original upload log[edit]

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Date/Time Dimensions User Comment
22:55, 6 September 2013 2,105 × 1,166 (1,903,105 bytes) w:en:Bwark (talk | contribs) Uploading a free file from somebody else using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]

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current20:47, 1 August 2014Thumbnail for version as of 20:47, 1 August 20142,105 × 1,166 (1.81 MB)Josve05a (talk | contribs)Transferred from en.wikipedia: see original upload log above

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