Oichnus Bromley, 1981
Wisshak et al., 2019a
Predation; substrate calcareous; tracemaker invertebrate
Buatois et al., 2017
Category of architectural design: 2.63. Circular holes and pit-shaped borings.
Knaust, 2012a
Unbranced, circular.
Nielsen & Nielsen, 2001
Ethology. Pit-shaped specimens of O. simplex and O. paraboloides have been interpreted as attachment scars (see Franzén, 1974; Brett, 1978, 1985) and may be categorized as domichnia. At least some specimens, especially those of O. paraboloides, were probably produced by potential predators and can be considered as "unfinished' praedichnia. Moreover many different species of benthic foraminiferans are known to be bioeroders (Vénec-Peyré, 1996) and very little knowledge exists as to the reasons for this behavior. At least some specimens of pit-shaped Oichnus may have been produced by sessile host-selective epibionts, probably parasites or commensal suspension-feeding animals of unknown affinities (Brett, 1978,1985).
Lévi, 1953
Tracemaker: They were probably produced by Muricidae and Marginellidae (gastropods) and octopod cephalopods, respectively.
Wisshak et al., 2015
Circular to subcircular holes of biogenic origin bored into hard substrates. The hole may pass right through the substrate as a penetration, where the substrate is a thin shell; or end within the substrate as a shallow to deep depression or short, subcylindrical pit.
Bromley, 1981a
Circular to subcircular holes of biogenic origin bored into hard substrates. The hole may pass right through the substrate as a penetration, where the substrate is a thin shell; or end within the substrate as a shallow to deep depression or short, subcylindrical pit.
Organism group | Biota |
Ichnofossil group | Ichnofossils |
Bioerosional trace fossils | |
Family | Oichnidae |
Genus | Dipatulichnus |
Kardopomorphos | |
Lamniporichnus | |
Loxolenichnus | |
Oichnus | |
Species | asperus |
coronatus | |
gradatus | |
ovalis | |
paraboloides | |
simplex | |
solus | |
taddei | |
Genus | Stellatichnus |