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trace fossil contraintes
génér.	ихнофоссилия (Belemnitella taurica)
géol.	след жизнедеятельности ископаемого организма
Anglais glossaire
trace fossils
paléont.	ichnofossils (MichaelBurov)
trad.	Trace fossils are the evidence of biological activity of an organism in the geologic record, but without some part of the animal or plant itself actually preserved. Typical trace fossils are footprints or trails, compared to body fossils such as bones or petrified wood. (MichaelBurov)

trace fossil : 2 phrases, 2 sujets

Pétrole et gaz	1
Sakhaline	1