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Dickinsonia costata

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Journal Article
Journal: Paleobiology
Published: 01 February 2022
Paleobiology (2022) 48 (1): 83–98.
... organisms in the fossil record. However, these rely on individuals captured at an instant in time at various growth stages, and so different interpretations can be derived from the same material. Here we leverage newly discovered and well-preserved Dickinsonia costata Sprigg, 1947 from South Australia...
FIGURES | View All (7)
Journal Article
Published: 01 May 2018
Journal of Paleontology (2018) 92 (3): 313–322.
...Lily M. Reid; Diego C. García-Bellido; James G. Gehling Abstract Despite 70 years of study, Dickinsonia remains one of the Ediacara biota’s most enigmatic taxa with both morphological characters and phylogenetic affinities still debated. A large population of relatively small Dickinsonia costata...
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Taphonomic variants of  <span class="search-highlight">Dickinsonia</span> . A: Classic  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  morp...
Published: 23 September 2019
Figure 1. Taphonomic variants of Dickinsonia . A: Classic Dickinsonia costata morphology preserved in situ in negative hyporelief with modules and midline expressed as negative grooves, indicating greater relief in the original organism. Nilpena (South Australia) specimen 1T-F 001. B
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<span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  from TB-ARB. Triangles indicate posterior indentations...
Published: 01 February 2022
Figure 1. Dickinsonia costata from TB-ARB. Triangles indicate posterior indentations, arrows indicate areas where modules appear to be incomplete, and brackets indicate three modules that merge into one across the midline. Specimens TB-ARB (A) 555 s 232e; (B) 240 s 26e; (C) 339 s 13e; (D) 316 s
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Cartoon of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  demonstrating hypothesized morphological p...
Published: 01 February 2022
Figure 2. Cartoon of Dickinsonia costata demonstrating hypothesized morphological positions for the location of module differentiation. Solid filled modules represent different hypotheses, including posterior terminal, differentiation of preexisting and anterior pre-terminal module addition
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<span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  with incomplete modules (arrows) and indentations (tri...
Published: 01 February 2022
Figure 3. Dickinsonia costata with incomplete modules (arrows) and indentations (triangles) at various morphological locations. Thicker arrows (magenta) in (D) indicate modules that are incomplete approximately halfway between the midline and outer margin. Specimens (A) N06-36; (B) MMB3; (C
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Total length of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  compared with (A) total width and (B)...
Published: 01 February 2022
Figure 4. Total length of Dickinsonia costata compared with (A) total width and (B) number of modules for specimens from TB-ARB (magenta plus signs, dashed line), including three representative specimens (stars); Hoekzema et al. ( 2017 ; blue squares, dotted line) and all other D. costata
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Module width for representative  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  from TB-ARB for every...
Published: 01 February 2022
Figure 5. Module width for representative Dickinsonia costata from TB-ARB for every module in the specimen with trend lines representing two point running averages (A, B) and trend lines connecting homologous modules between specimens (C, D). Compare models assuming posterior addition (A, C
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Observations of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  and relevance for hypotheses of the l...
Published: 01 February 2022
Table 1. Observations of Dickinsonia costata and relevance for hypotheses of the location of module addition. The number of examples refers to those from the Ediacara Member that support the indicated hypothesis; those in parentheses refer to the number that support the alternative. For example
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(d–g) Negative hyporelief casts of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  on deformed sandst...
Published: 14 July 2021
Fig. 7. (d–g) Negative hyporelief casts of Dickinsonia costata on deformed sandstone bed bases, Brachina Gorge, central Flinders Ranges and (a–c) Greg Retallack’s interpretation of these surfaces as the base of the C soil horizon of the type section of the Muru pedotype; after Retallack ( 2012
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A: Ediacaran macrofossil  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  (SAM P51194) from the Ediaca...
Published: 18 January 2019
Figure 1. A: Ediacaran macrofossil Dickinsonia costata (SAM P51194) from the Ediacara Member of the Rawnsley Quartzite, Nilpena National Heritage Site, South Australia. Scale bar = 10 mm. B: Field photograph of sedimentology within wave-base (oscillation-rippled) sand facies (sensu Gehling
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( 1 ) Descriptive labels for  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  features: 1=terminal A-e...
Published: 01 May 2018
Figure 2 ( 1 ) Descriptive labels for Dickinsonia costata features: 1=terminal A-end unit, 2=body unit, 3=position of shrinkage rim, 4=position of A-end lip, 5=generalized position of A-end protuberance. ( 2 ) Detail of A-end lip feature, visible as a narrow, raised rim on the peripheral margin
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Analyses of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  population. ( 1 ) Histogram showing size ...
Published: 01 May 2018
Figure 3 Analyses of Dickinsonia costata population. ( 1 ) Histogram showing size distribution of population (N=140); ( 2 ) rose diagram showing axial alignment of specimens (N=118); the ‘0’ is an arbitrary reference and denotes the top of the “Crisp Wall” frame; ( 3 ) graph depicting
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Photographs of  <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span>  Sprigg  1947  from the Crisp Gorge fos...
Published: 01 May 2018
Figure 4 Photographs of Dickinsonia costata Sprigg 1947 from the Crisp Gorge fossil locality, Flinders Ranges (latex rubber casts). ( 1 ) Well-defined, non-continuous shrinkage rim and A-end lip, SAMP34235; ( 2 ) well-developed A-end lip present as narrow, high relief band in A-end units
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— <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span> , a form probably related to flat-worms ( Sprigg, 194...
Published: 01 January 1965
FIG. 36. — Dickinsonia costata , a form probably related to flat-worms ( Sprigg, 1947 ).
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— <span class="search-highlight">Dickinsonia</span> <span class="search-highlight">costata</span> , a form probably related to flat-worms ( Glaessner, ...
Published: 01 January 1965
FIG. 37. — Dickinsonia costata , a form probably related to flat-worms ( Glaessner, 1961 ).
Journal Article
Published: 29 July 2021
Geological Magazine (2022) 159 (7): 1134–1147.
... of Aulozoon carried in by a storm wave-base surge. Phyllozoon hanseni is a widespread species that is restricted to the Nilpena Sandstone Member of the Rawnsley Quartzite, whereas Dickinsonia costata ranges from the underlying Ediacara Sandstone Member into the Nilpena Sandstone Member. Fundamental...
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Kimberichnus teruzzii , SAM P35657, positive hyporelief (natural cast of ex...
Published: 01 March 2014
Figure 5 Kimberichnus teruzzii , SAM P35657, positive hyporelief (natural cast of excavations) aligned with the resting trace of Kimberella, SAM P35661, and negative hyporelief of Dickinsonia costata, SAM P35660; Ediacara Member, south of Brachina Gorge. Scale bar=1 cm.
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Plots of module width for the (A) posterior-most and (B) anterior-most modu...
Published: 01 February 2022
Figure 6. Plots of module width for the (A) posterior-most and (B) anterior-most modules versus total length for 79 Dickinsonia costata from the Ediacara Member for which accurate estimates of each could be attained. Module widths are plotted for each side of the midline, and colors in A and B
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Comparison of the number of modules with the area of the anterior-most unit...
Published: 01 February 2022
Figure 7. Comparison of the number of modules with the area of the anterior-most unit (AMU) relative to total area for specimens from TB-ARB (magenta plus signs), Hoekzema et al. ( 2017 ; blue squares), and all other Dickinsonia costata from the Ediacara Member (gray circles). Gray trend line