Distinguishing features:
Parent taxon (Pocillithus): Minute muroliths with prominent spine, rim non-imbricate typically with serrated distal margin.
This taxon: rim high, with serrated distal margin,;central area narrow without crossbars
Taxonomy:
Farinacci & Howe catalog pages: P. macleodii *
Distinguishing features:
Parent taxon (Pocillithus): Minute muroliths with prominent spine, rim non-imbricate typically with serrated distal margin.
This taxon: rim high, with serrated distal margin,;central area narrow without crossbars
Morphology:
Differentiation. Pocillithus crucifer has a central cross supporting the circular-cross-sectioned spine; P. spinulifer has a central cross that forms a square spine-base, and the spine is square in cross-section.
Size:
LITHS: murolith, circular, elliptical, cylindrical, CA: closed, process, |
Lith size: 0.5->1.5µm; Data source notes: holotype +/-0.5µm |
Geological Range:
Last occurrence (top): within Turonian Stage (89.39-93.90Ma, top in Turonian stage). Data source: Bown et al. 2017
First occurrence (base): within Turonian Stage (89.39-93.90Ma, base in Turonian stage). Data source: Bown et al. 2017
Plot of occurrence data:
Bown, P. R., Lees, J. A. & Young, J. R. (2017). On the Cretaceous origin of the Order Syracosphaerales and the genus Syracosphaera. Journal of Micropalaeontology. 36(2): 153-165. gs References:
Pocillithus macleodii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-12-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10916 Go to Archive.is to create a permanent copy of this page - citation notes |
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