Species

Oichnus paraboloides Bromley, 1981

Taxon description

Pokorný & Štofik, 2017

Emended diagnosis: Penetrative Sedilichnus having a conical form, truncated where the boring penetrates through the substrate (after Bromley, 1981; and Zonneveld and Gingras,2014).

Blissett & Pickerill, 2007

Diagnosis – (After Bromley, 1981, p. 62.) “Oichnus having a spherical paraboloid form, truncated in those cases where the boring penetrates right through the substrate. Where it does not so penetrate, the paraboloid may be deformed by a slightly raised
central boss.”
Description – Simple borings resembling overturned cones with the apexes truncated. The structures are perpendicular to the substrate surface.

Bromley, 1981a

Diagnosis: Oichnus having a spherical paraboloid form, truncated in those cases where the boring penetrates right throueh the substrate. Where it does not so venetrate, the parabYoloill rnay be deformed by a slightly raised central boss.

Synonymy list
1981     Oichnus paraboloides — Bromley , pp. 62, fig. 1:4,5; 2:1
1985     Tremichnus cysticus n. ichnosp. — Brett , pp. 625, 628-629, fig. text-fig. 3
1985     Tremichnus minutus n. ichnosp. — Brett , pp. 625, 628-629, fig. text-fig. 4-5
1985     Tremichnus paraboloides n. ichnospecies: — Brett , pp. 625, 627-628
1986     Tremichnus cysticus — Harper , pp. 16, fig. 1
1987     Oichnus paraboloides Bromley 1981 — Mayoral , pp. 50, fig. 1:1-22, 24-25
1988     Tremichnus cysticus — Eckert , pp. 281-283, fig. text-fig. 1-2
1991     Oichnus paraboloides — Feige & Fürsich , pp. 129
1996     Oichnus paraboloides — Pek & Mikulas , pp. 109, 111
2001     Oichnus paraboloides Bromley, 1981 — Nielsen & Nielsen , pp. 103, fig. 1C-D,5
Classification
Organism groupBiota
Ichnofossil groupIchnofossils
Bioerosional trace fossils
FamilyOichnidae
GenusOichnus
Orbignyopora
Speciesasperus
coronatus
gradatus
ovalis
paraboloides
simplex
solus