Tagasi otsingusse
Pickerill & Donovan, 1998

Ichnology of the Pliocene Bowden shell bed, southeast Jamaica

Pickerill, R. K., Donovan, S. K.
Aasta1998
AjakiriContributions to Tertiary and Quaternary Geology
Leheküljed161–175
Tüüpartikkel ajakirjas
Keelinglise
Id19551

Abstrakt

At least 45 ofthe approximately 600 species of molluscs documented from the Bowden shell bed exhibit evidence ofbioerosion in the form of completely or incompletely penetrative (failed) small round holes. Assessment of previously illustrated material, together with new collections made by us, shows that these borings are assignable to the ichnotaxon Oichnus Bromley, 1981, in particular O. paraboloides Bromley, 1981 and O. simplex Bromley, 1981. Observations suggest that the borings were not a result ofparasitism nor simple random excavations by bioerodingorganisms. Rather, they are interpreted as a result of opportunistic predatory activities ofcannibalisticgastropods, O. paraboloides probably havingbeen produced by naticids and O. simplex by muricids.

Viimati muudetud: 27.9.2022
KIKNATARCSARVTÜ Loodusmuuseumi geokogudEesti Loodusmuuseumi geoloogia osakond
Leheküljel leiduvad materjalid on enamasti kasutamiseks CC BY-SA litsensi alusel, kui pole teisiti määratud.
Portaal on osaks teadustaristust ning infosüsteemist SARV, majutab TalTech.
Open Book ikooni autor Icons8.