TY - JOUR
T1 - Fossil barnacles from the Antarctic Peninsula
T2 - Refining ways of exploring the nature of rare and/or delicate specimens employing X-ray Computer Tomography (CT)
AU - Stilwell, Jeffrey D.
AU - Buckeridge, John St J.S.
AU - Bevitt, Joseph J.
AU - Zahra, David
N1 - Funding Information:
The authors wish to thank the NSTLI Biosciences Platform of ANSTO and S. Morton (Monash University) for his expertise in refining the figures in this paper. This research was supported by an Earth, Atmosphere and Environment Allocation grant (Monash University) to JDS, who originally collected the fossil barnacle as part of a joint National Science Foundation (USA) expedition to Antarctica during the 1986–87 Austral summer, when he was conducting his MSc research at Purdue University, Indiana (USA) under the expedition leadership of W.J. Zinsmeister.
Publisher Copyright:
Copyright © 2020, The Paleontological Society.
PY - 2020/11
Y1 - 2020/11
N2 - Assessment of unique and potentially significant fossils may be considerably compromised by surrounding matrix. This paper assesses a fossil barnacle group from the mid to late Eocene of Seymour Island, off the Antarctic Peninsula, that potentially has very significant phylogenetic importance. It discusses why the specimen could be significant, and describes and applies as a proof of concept an advanced imaging technique, using X-ray Computed Tomography (CT), that was effectively employed to confirm systematic taxonomy with virtual 3-D sections through the specimen. In this case, the Antarctic barnacle's complex internal plate morphologies were resolved by advanced 3-D imaging, such that a taxonomic attribution could be made to either the Archaeobalanidae or Austrobalanidae, excluding the initial assessment of Coronulidae, which would have otherwise been allusive.
AB - Assessment of unique and potentially significant fossils may be considerably compromised by surrounding matrix. This paper assesses a fossil barnacle group from the mid to late Eocene of Seymour Island, off the Antarctic Peninsula, that potentially has very significant phylogenetic importance. It discusses why the specimen could be significant, and describes and applies as a proof of concept an advanced imaging technique, using X-ray Computed Tomography (CT), that was effectively employed to confirm systematic taxonomy with virtual 3-D sections through the specimen. In this case, the Antarctic barnacle's complex internal plate morphologies were resolved by advanced 3-D imaging, such that a taxonomic attribution could be made to either the Archaeobalanidae or Austrobalanidae, excluding the initial assessment of Coronulidae, which would have otherwise been allusive.
UR - http://www.scopus.com/inward/record.url?scp=85093874848&partnerID=8YFLogxK
U2 - 10.1017/jpa.2020.33
DO - 10.1017/jpa.2020.33
M3 - Article
AN - SCOPUS:85093874848
SN - 0022-3360
VL - 94
SP - 1076
EP - 1081
JO - Journal of Paleontology
JF - Journal of Paleontology
IS - 6
ER -