Dr. Claudia Sosa Montes de Oca

Postdoctoral researcher

PhD, University of Granada (Spain)

Postdoctoral researcher at University of Granada 

Honorary Research Associate, School of Earth Sciences

https://orcid.org/0000-0003-4451-6458

Organic geochemistry · Earth history

Reading the
molecular memory
of our planet.

I investigate how environmental stress reshapes life — and how ecosystems recover — through chemical signals preserved in ancient sediments.

Enter the research ↓
Portrait of Dr Claudia Sosa Montes de Oca
Marie Skłodowska-Curie Fellow · University of Granada
8+years decoding
deep time
Granada ↔ Bristol
Organic geochemistryMass extinctionsMolecular fossilsPalaeoclimate
01Research

The central question

What happens to life after catastrophe?

My research reconstructs environmental and biotic change across past mass extinction events, with a particular focus on the Cretaceous–Paleogene boundary.

I combine organic and inorganic geochemistry to identify molecular fossils, isotopes and elemental ratios in sediments spanning the last 540 million years.

01

Molecular fossils

Biomarkers preserved in rock reveal the organisms and environments of deep time.

02

Mass extinctions

The K–Pg event is a natural laboratory for ecological collapse and recovery.

03

Climate archives

GDGTs, isotopes and elemental ratios record ancient temperature, pH and oxygen conditions.

European Commission · 2024—2026

GAMES

A molecular fossil approach to the pace, geography and mechanisms of recovery.
HostUniversity of Granada
ProgrammeMarie Skłodowska-Curie Actions
Grant101150036
GAMES project
02Selected publications

Peer-reviewed research

Recent papers

Research on primary productivity, organic carbon and ecosystem recovery across the K–Pg boundary.

View all publications →

Dr Claudia Sosa Montes de Oca

Earth keeps
a record.

University of Granada · Spain
Organic Geochemistry Unit · University of Bristol

ORCID 0000-0003-4451-6458 ↗

© 2026 Claudia Sosa Montes de Oca

Organic geochemistry · Earth history

Reading the
molecular memory
of our planet.

I investigate how environmental stress reshapes life — and how ecosystems recover — through chemical signals preserved in ancient sediments.

Enter the research ↓
GAMES research project
Marie Skłodowska-Curie Fellow · University of Granada
01Research

The central question

What happens to life after catastrophe?

My research reconstructs environmental and biotic change across past mass extinction events, with a particular focus on the Cretaceous–Paleogene boundary.

I combine organic and inorganic geochemistry to identify molecular fossils, isotopes and elemental ratios in sediments spanning the last 540 million years.

01

Molecular fossils

Biomarkers preserved in rock reveal the organisms and environments of deep time.

02

Mass extinctions

The K–Pg event is a natural laboratory for ecological collapse and recovery.

03

Climate archives

GDGTs, isotopes and elemental ratios record ancient temperature, pH and oxygen conditions.

European Commission · 2024—2026

GAMES

A molecular fossil approach to the pace, geography and mechanisms of recovery.
HostUniversity of Granada
ProgrammeMarie Skłodowska-Curie Actions
Grant101150036
02Selected publications

Peer-reviewed research

Recent papers

Research on primary productivity, organic carbon and ecosystem recovery across the K–Pg boundary.

View all publications →