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English: Estimated size of the ankylosaur specimen ZPAL MgD I/113. ZPAL MgD I/113 are known from a mostly complete tail, sacral, presacral vertebrae and a slab of armour from its back. ZPAL MgD I/113 have been referred to Tarchia, thought this is questionable, as its morphology differ from other specimens attributed to the genus.[1]

Due to its incompleteness, the exact size of ZPAL MgD I/113 are difficult to determine: a restoration from 2014 lead to a body length of roughly 9 meters,[2] while a 2017 study gave an estimation of 5.8-6.7 meters. [3] My size comparison of ZPAL MgD I/113 are based on the size of the “handle” part of its tail (depicted above the human figure), consisting of fused vertebrae (about 190 cm., based on fig. 7 from Arbour & Evans (2017),[4] while the tail as a whole measures 3.101 meters).[1] The rest of the body is a generalised guess, based on other ankylosaurids.

References

  1. ↑ a b Arbour V.M. et.al. (2013). "An ankylosaurid dinosaur from Mongolia with in situ armour and keratinous scale impressions". Acta Palaeontologica Polonica 58(1): p. 55-64
  2. ↑ Arbour V.M. et.al. (2014). "Epidermal and Dermal Integumentary Structures of Ankylosaurian Dinosaurs". Journal of Morphology 275(1): p. 39-50. [1]
  3. ↑ Arbour V.M. & Mallon J.C. (2017). "Unusual cranial and postcranial anatomy in the archetypal ankylosaur Ankylosaurus magniventris". FACETS 2: 764–794. DOI:[2]
  4. ↑ Arbour W.M. & Evans D.C. (2017). "A new ankylosaurine dinosaur from the Judith River Formation of Montana, USA, based on an exceptional skeleton with soft tissue preservation". Royal Society Open Science 4(5): [3]
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Ankylosauridae

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7 August 2021

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Date/TimeThumbnailDimensionsUserComment
current06:36, 9 August 2021Thumbnail for version as of 06:36, 9 August 20214,137 × 1,368 (162 KB)ContyNew version with osteoderms made visible.
11:30, 7 August 2021Thumbnail for version as of 11:30, 7 August 20213,720 × 1,484 (795 KB)ContyAdding squares (in meters) and a human for scale.
11:23, 7 August 2021Thumbnail for version as of 11:23, 7 August 20213,294 × 1,108 (40 KB)ContyUploaded own work with UploadWizard

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