Media 000383802: Footprint Artifical Cast [Mesh] [Photogram]
Represents:
Cultural Heritage Object
In Collection

0 ADDITIONAL MEDIA RELATED TO ACQUISITION EVENT

COLLECTIONS MEDIA BELONGS TO

MEDIA TAGS

FILE OBJECT DETAILS

Media ID
000383802
Media type
Mesh
File format(s)
text/prs.wavefront-obj
File size
14,159,562 bytes
Object element or part
Footprint artifical cast
Side
Left
Orientation
--
Short description
Dinosaur footprint
Full description
Fossil footprints provide the only evidence of Triassic aged dinosaurs in Australia. While historically several Triassic dinosaur tracksites are reported, only one specimen exists for direct study. Evidence for the Rhondda colliery (Ipswich) trackmaker, Upper Triassic Blackstone Formation as a very large-bodied Triassic predatory dinosaur is not supported by the present study because of overestimated the footprint length measurements, and we question earlier interpretations that these tracks are Eubrontes-like. Instead, we recognize shared characteristic with the sauropodomorph ichnogenus Evazoum. Track morphology resembles Evazoum on account of the distinct shape and position of the impression of the metatarsophalangeal pad for digit IV. The mesaxony of the Blackstone Formation track is also low, but possibly slightly higher than in Evazoum, if the proportions of the digital impressions are correctly interpreted. Finally, the trackway pattern shows constant inward rotation of the imprints, a feature observed in typical Evazoum and mostly absent in Eubrontes. Therefore, we assign these Australian tracks as Evazoum ichnosp. indet. If our assessment of the Blackstone Formation tracks is correct, they provide the first and only evidence of basal sauropodomorph dinosaurs from Australia. In addition to this record, we give an overview of other reported (but lost) Australian Triassic dinosaur footprints.
Creator
Anthony Romilio
Date created
March 28, 2021
Date uploaded
September 18, 2021
Points
131,272
Polygons
261,294
Map type
--
UV coordinates
True
Vertex color
False
Bounding box dimensions
0.545, 0.716, 0.046
Centroid coordinates
-0.003, -0.018, -0.005
Units of point coordinates
--

IMAGE ACQUISITION AND PROCESSING AT A GLANCE

Number of parent media
0
Number of processing events
1 (1 step)
Modality
Photogrammetry
Device
Samsung Galaxy S5 (SM-G900I), No Organization (No Institution)

OWNERSHIP AND PERMISSIONS

Data managed by
Data uploaded by
Download permission
Publish with Open Download
Download reviewer
IP holder
--
Morphosource use agreement type
Standard
Permits commercial use
Commercial Use Permitted
Permits 3D use
3D Printing Limited
Required archival of published derivatives
On MorphoSource
Funding attribution
--
Publisher
Histroical Biology
Cite as
--
Media preview mode
Interactive/Embeddable
Additional usage agreement
None

IDENTIFIERS AND EXTERNAL LINKS

MorphoSource ARK
MorphoSource DOI
Not assigned
External identifier
--
External media URL
--

IMAGE ACQUISITION AND PROCESSING IN DETAIL

STEP 1: IMAGE ACQUISITION

Physical object none:none:QMF5474 Rhondda Colliery Dinosaur Footprint was imaged to create undeposited raw media.

Imaging Details

Modality
Photogrammetry
Device
Samsung Galaxy S5 (SM-G900I)
Device facility
No Organization (No Institution)
Creator
Anthony Romilio
Date
2021-03-28
Software
Agisoft Metashape
Description
Fossil footprints provide the only evidence of Triassic aged dinosaurs in Australia. While historically several Triassic dinosaur tracksites are reported, only one specimen exists for direct study. Evidence for the Rhondda colliery (Ipswich) trackmaker, Upper Triassic Blackstone Formation as a very large-bodied Triassic predatory dinosaur is not supported by the present study because of overestimated the footprint length measurements, and we question earlier interpretations that these tracks are Eubrontes-like. Instead, we recognize shared characteristic with the sauropodomorph ichnogenus Evazoum. Track morphology resembles Evazoum on account of the distinct shape and position of the impression of the metatarsophalangeal pad for digit IV. The mesaxony of the Blackstone Formation track is also low, but possibly slightly higher than in Evazoum, if the proportions of the digital impressions are correctly interpreted. Finally, the trackway pattern shows constant inward rotation of the imprints, a feature observed in typical Evazoum and mostly absent in Eubrontes. Therefore, we assign these Australian tracks as Evazoum ichnosp. indet. If our assessment of the Blackstone Formation tracks is correct, they provide the first and only evidence of basal sauropodomorph dinosaurs from Australia. In addition to this record, we give an overview of other reported (but lost) Australian Triassic dinosaur footprints.
Imaging event description attachment
None
Imaging event reference attachment
None
Lens
SM-G9001
Other details
Fixed focal length

STEP 2: IMAGE PROCESSING

Raw media (undeposited) was processed with 1 activity to create derived Media 000383802: Footprint Artifical Cast [Mesh] [Photogram] (this media).

Processing Details

Creator
Anthony Romilio
Date processed
2021-03-28
Software
Agisoft Metashape
Description
--
Description attachment
None

Processing Activity 1: Photos to Mesh

Software
Description

Media produced by this event on MorphoSource


Media 000383802: Footprint Artifical Cast [Mesh] [Photogram] (this media)