Su

a diminutive of the female given name Susana

aparición

1. appearance (act of appearing)
2. appearance (a thing seen)
3. apparition

ocurrió

third-person singular preterite indicative of ocurrir

durante

1. during, in, over
2. for (as a duration)

el

masculine singular definite article; the

oligoceno

Oligocene

temprano

• Adj

  early

• Adv