description Alcide d'Orbigny Overview
Alcide d'Orbigny was a French naturalist and paleontologist whose work on foraminifera helped establish micropaleontology as a field of study. He described and classified numerous microscopic shelled organisms, used fossils in the study of geological strata, and published research based on his scientific travels in South America and later work in France. His contributions are relevant to paleontology, biostratigraphy, and the use of microfossils to interpret Earth history.
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Why is Alcide d'Orbigny important to micropaleontology?
D'Orbigny helped establish micropaleontology by studying microscopic fossils, especially foraminifera. He proposed an early classification of the foraminifera group in 1826.
Where did Alcide d'Orbigny conduct his major field expedition?
D'Orbigny traveled through South America on a Paris Museum mission from 1826 to 1833. His route included countries such as Venezuela, Peru, Bolivia, Chile, Argentina, and Brazil, and he returned with more than 10,000 natural-history specimens.
What book recorded Alcide d'Orbigny's South American research?
His expedition findings were published in the multivolume Voyage dans l'Amérique méridionale. The work combined zoology, geology, paleontology, and observations of South American peoples and landscapes.
Why are d'Orbigny's foraminifera useful to geologists?
Foraminifera often occur in large numbers and can be tied to particular marine environments or periods of geological time. Their fossil shells therefore help researchers correlate rock layers and reconstruct ancient oceans.
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