Media 000383802: Footprint Artifical Cast
Open Download
Type Mesh
Modality Photogrammetry
Media represents cultural heritage object
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GENERAL DETAILS Field Definitions

Media ID
000383802
Media type
Mesh
Object element or part
Footprint artifical cast
Object organization
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

FILE OBJECT DETAILS Field Definitions

File name
QMF5474_TriassicQLD.zip
File format(s)
ZIP archive, OBJ
File size
13.5 MB
Points
131272
Polygons
261294
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 Field Definitions

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 Field Definitions

Data managed by
Data uploaded by
Publication status
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 Field Definitions

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 Field Definitions

Modality
Photogrammetry
Device
Samsung Galaxy S5 (SM-G900I)
Device facility
No Organization (No Institution)
Creator
Anthony Romilio
Event date
March 28, 2021
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.
Description attachment
None
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 Field Definitions

Creator
Anthony Romilio
Event date
March 28, 2021
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)