(en) Santiago R. Ramírez, Barbara Gravendeel, Rodrigo B. Singer, Charles R. Marshall & Naomi E. Pierce, « Dating the origin of the Orchidaceae from a fossil orchid with its pollinator », Nature, vol. 448, no 7157, , p. 1042–1042 (PMID17728756, DOI10.1038/nature06039, lire en ligne)
(en) Santiago R. Ramírez, Barbara Gravendeel, Rodrigo B. Singer, Charles R. Marshall & Naomi E. Pierce, « Dating the origin of the Orchidaceae from a fossil orchid with its pollinator », Nature, vol. 448, no 7157, , p. 1042–1042 (PMID17728756, DOI10.1038/nature06039, lire en ligne)
nih.gov
ncbi.nlm.nih.gov
(en) Santiago R. Ramírez, Barbara Gravendeel, Rodrigo B. Singer, Charles R. Marshall & Naomi E. Pierce, « Dating the origin of the Orchidaceae from a fossil orchid with its pollinator », Nature, vol. 448, no 7157, , p. 1042–1042 (PMID17728756, DOI10.1038/nature06039, lire en ligne)