Species

Dipatulichnus rotundus Nielsen et Nielsen, 2001

Taxon description

Blissett & Pickerill, 2007

Description– Pairs of closely spaced, sub-circular, sub-cylindrical unconnected holes c. 400 μm apart. The diameters, averaging 119 μm, of these openings are constant and perpendicular to the substrate surface.

Remarks– The difficultly in isolating this ichnospecies is the similarity of each of the cylindrical-like ‘holes’ to Oichnus simplex Bromley, 1981, and the semi-interpretive aspect of one of the diagnostic features as it relates to proximity of these biogenic holes.

Nielsen & Nielsen, 2001

Diagnosis. Pair of biogenic holes, unconnected, but situated in the same skeletal substrate. Each hole has a simple cylindrical form, oriented perpendicular to the substrate surface. Both external and internal openings are sharp and circular in outline.

Synonymy list
2001     Dipatulichnus rotundus isp. nov. — Nielsen & Nielsen , pp. 111, fig. 3A-D, 5
2007     Dipatulichnus rotundus Nielsen & Nielsen, 2001 — Blisset & Pickerill , pp. 84, fig. 2:1
2020     Dipatulichnus rotundus Nielsen & Nielsen, 2001 — Baldanza et al. , pp. 12, fig. 6h
Selection of related publications
Blissett, D. J., Pickerill, R. K. 2007. Systematic ichnology of microborings from the Cenozoic White Limestone Group, Jamaica, West Indies. Scripta Geologica 134, 77-108.
Nielsen, K. S. S., Nielsen, J. K. 2001. Bioerosion in Pliocene to Late Holocene tests of benthic and planktonic foraminiferans, with a revision of the ichnogenera Oichnus and Tremichnus. Ichnos 8, 2, 99-116. DOI:10.1080/10420940109380178
Klassificering
Organism groupBiota
Ichnofossil groupIchnofossils
Bioerosional trace fossils
FamilyOichnidae
GenusDipatulichnus
Speciesrotundus
References based on distribution