Mammals

Diversity of life

An ancient history preserved in tiny teeth

Mammals existed and diversified long before non-avian dinosaurs disappeared. Their often tiny teeth reveal a history richer than a few animals hiding in the giants’ shadow.

Dryolestid lower molar, Cherves-de-Cognac: a comparative fossil mammal
Dryolestid lower molar, Cherves-de-Cognac: a comparative fossil mammal. © Joane Pouech. Dinosaures, les géants du vignoble, 2017, p. 244.

The method in practice

Teeth withstand fossilisation relatively well and preserve many characters. Their shape, cusps and contact surfaces are compared to assess groups and dietary adaptations. Collection usually involves sieving and patient microscope sorting.

At Angeac and in regional comparisons

Mesozoic mammals at these sites are known mainly from teeth and small jaw fragments. Cherves and Chassiron collections provide useful comparisons for Angeac research. Cusp shape, arrangement and wear surfaces distinguish groups sometimes absent from the larger specimens collected in the field.

Comparative reconstructions of Mesozoic mammals
Comparative reconstructions of Mesozoic mammals. © Mazan. Dinosaures, les géants du vignoble, 2017, pp. 236–237.

What this research reveals

The anatomy of Angeac’s mammals is compared with specimens from other fossil sites.

Specimens and data

Mammals identified from their tiny teeth

The shape and arrangement of cusps distinguish different mammal groups. Front, side and top views reveal different anatomical features.

Enlarge each plate to examine labels, specimen identifiers and scale bars.

People and expertise

Maxime Debuysschere and Joane Pouech contribute to the study of fossil mammals. This research also relies on the people who collect, sort, prepare and document these small specimens.

All the people behind the project →

Further reading

Overview reference: Dinosaures, les géants du vignoble (2017), p. 236–245.

Publications and results → · The book and its authors →

Scientific research on this topic

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