The origin of life from a paleontological perspective, a review

Catalina Gómez-Espinosa, María Colín-García

Resumen


Although the origin of
life cannot be dated with precision, life must have appeared soon
after the cooling of the Earth, when the existence of liquid water
on the planet enabled primitive oceans to exist. In fact, fossil
records support the evidence of life on Earth earlier than 3400 Ma
ago. In order to understand the origin of life, it is useful to
track geochemical factors such as the presence of carbon and
isotopic evidence, which also suggests the presence of microbials.
Eoarchean crustal rocks are located on Akilia Island and on the Isua
Greenstone belt southwest of Greenland. The oldest recognized
microfossil record is 3430 Ma old from Strelley Pool Formation
cherts, Pilbara, Australia. In Paleontology, it is necessary to
reevaluate the outcrops of the oldest rock in light of new
technologies, new techniques, and a multidisciplinary approach. This
will help support data about when life emerged.


Palabras clave


Earliest microfossils; Eoarchean; Paleoarchean; ancient life; biosignatures.

Texto completo:

PDF

Enlaces refback

  • No hay ningún enlace refback.