ΠΡΠΊΠ°ΡΡ
ΠΡΠ±Π΅ΡΠΈΡΠ΅ ΡΠ·ΡΠΊ ΡΠ»ΠΎΠ²Π°ΡΡ
ΠΡΠ±Π΅ΡΠΈΡΠ΅ ΡΠ²ΠΎΠΉ ΡΠ·ΡΠΊ
indexΒ fossil
/ΛΙͺndΙks fΛΙsΙl/
Index fossil
01
ΠΈΠ½Π΄Π΅ΠΊΡΠ½Π°Ρ ΠΎΠΊΠ°ΠΌΠ΅Π½Π΅Π»ΠΎΡΡΡ, ΡΡΠΊΠΎΠ²ΠΎΠ΄ΡΡΠ΅Π΅ ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΠΎΠ΅
a fossilized organism that is useful for dating and correlating the strata in which it is found, typically indicative of a particular time period in Earth's geological history
ΠΡΠΈΠΌΠ΅ΡΡ
The trilobite is an index fossil commonly used to date Paleozoic rock layers.
Π’ΡΠΈΠ»ΠΎΠ±ΠΈΡ β ΡΡΠΎ ΠΈΠ½Π΄Π΅ΠΊΡΠ½ΡΠΉ ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΡΠΉ, ΠΎΠ±ΡΡΠ½ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠΉ Π΄Π»Ρ Π΄Π°ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠ°Π»Π΅ΠΎΠ·ΠΎΠΉΡΠΊΠΈΡ
Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄.
ΠΠ»ΠΈΠ·ΠΊΠΈΠ΅ Π‘Π»ΠΎΠ²Π°
