Trace fossil classification: Difference between revisions

Revision as of 17:46, 6 February 2022

Revision as of 20:09, 18 September 2022

Line 22:

Since the inception of behavioural categorization, several other ethological classes have been suggested and accepted, as follows:

* ''Aedificichnia'':<ref>{{cite journal |lastlast1=Bown |firstfirst1=T. M. |last2=Ratcliffe |first2=B. C. |year=1988 |title=The origin of ''Chubutolithes'' Ihering, ichnofossils from the Eocene and Oligocene of Chubut province, Argentina |journal=Journal of Paleontology |volume=62 |issue=2 |pages=163–167 |doi=10.1017/S0022336000029802 |s2cid=20261299 |url=http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1136&context=entomologypapers }}</ref> evidence of organisms building structures outside of the [[infauna]]l realm, such as [[termite]] mounds or [[wasp]] nests.

* ''Agrichnia'':<ref>Ekdale, AA; Bromley, RG; Pemberton, SG (1984) Ichnology: Trace fossils in sedimentology and stratigraphy. Society of Economic Paleontologists and Mineralogists Short Course, no 15, 317 pp.</ref> so called "gardening traces", which are systematic burrow networks designed to capture migrating [[meiofauna]] or perhaps even to culture [[bacteria]]. The organism would have continually inspected this burrow system to prey on any smaller organisms that strayed into it.

* ''Calichnia'':<ref>Genise, JF & Bown, TM (1991) New Miocene scarabaeid and hymenopterous nests and Early Miocene (Santacrucian) palaeoenvironments, Patagonian Argentina. Ichnos, 3: 107–117.</ref> structures that were created by organisms specifically for [[Reproduction|breeding]] purposes, e.g. [[bee]] cells.

Line 43:

* ''Volichnia'': traces that show the position a flying organism (usually an insect) landed on a soft sediment.

Fixichnia<ref>{{cite journal |lastlast1=Gibert |firstfirst1=J. M. de |last2=Domènech |first2=R. |last3=Martinell |first3=J. |year=2004 |title=An ethological framework for animal bioerosion trace fossils upon mineral substrates with proposal of new class, fixichnia |journal=Lethaia |volume=37 |issue=4 |pages=429–437 |doi=10.1080/00241160410002144 }}</ref> is perhaps the group with the most weight as a candidate for the next accepted ethological class, being not fully described by any of the eleven currently accepted categories. There is also potential for the three plant traces (cecidoichnia, corrosichnia and sphenoichnia) to gain recognition in coming years, with little attention having been paid to them since their proposal.<ref>{{cite journal |last=Mikuláš |first=R. |year=1999 |title=Notes on the concept of plant trace fossils related to plant-generated sedimentary structures |journal=Věštník Českého Geologického ústavu |volume=74 |issue=1 |pages=39–42 }}</ref>

==Toponomic classification==