RT Journal Article
T1 An Ediacaran trace-like body fossil of a Palaeopascichnus specimen from Oman under 3D micro-tomography
A1 Jorge Pinto, Andre Filipe
A1 Álvarez Lloret, Pedro
A1 Callegari, Ivan
A1 Scharf, Andreas
AB Palaeopascichnus is an Ediacaran organism, whose phylogenetic affiliation and functional anatomy are both shrouded in mystery. Different studies and assessments have interpreted this fossil as macrophytes or foraminifera-like protists. Currently ongoing discussions concerns the possible phylogenetic relation between Palaeopascichnus and modern xenophyophores; benthic organisms that built agglutinated tests. We present micro-XRD, SEM-EDS and three-dimensional microtomographic data on a possible Palaeopascichnus specimen from the Ediacaran Fara Formation, in Wadi Bani Awf, Jabal Akhdar, Oman. The unique preservation of this specimen as a full positive epirelief of drusy calcite growths represents a new taphotype for this organism, enabling a more accurate observation of chamber structure and better morphological characterization. The data gathered concerning both chamber´s dimensions and morphology does not point towards an affiliation with any known Paleopascichnus species, except for much smaller P. jiumenensis. Therefore, it is possible that this specimen represents a new, previously unknown species.
PB Springer
YR 2025
FD 2025-06-23
LK https://hdl.handle.net/20.500.14352/121786
UL https://hdl.handle.net/20.500.14352/121786
LA eng
NO Pinto, A. J., Álvarez-Lloret, P., Callegari, I., & Scharf, A. (2025). An Ediacaran trace-like body fossil of a Palaeopascichnus specimen from Oman under 3D micro-tomography. Facies, 71(3), 13. https://doi.org/10.1007/s10347-025-00705-5
NO MCIU/AEI/FEDER/UE
NO CRUE-CSIC
DS Docta Complutense
RD 26 feb 2026