Ginkgoopsida - Ephedrales - Ephedraceae
Full reference: B. C. Dumortier. 1829. Analyse des Familles des Plantes, avec l’indication des principaux genres qui s’y rattachent
Parent taxon: Ephedrales according to S. V. Meyen 1984
See also Cladera et al. 2007, Dumortier 1829 and Mabberley 2000
Sister taxa: Amphiephedra, Ephedripites, Equisetosporites, Regalipollenites
Subtaxa: Ephedra Ephedrites
Distribution:
• Quaternary of Argentina (1 collection), India (15), Italy (2), United States (2: Utah, Washington)
• Pliocene of Portugal (1)
• Miocene of Azerbaijan (6), Poland (1), Turkey (1), United States (2: Maryland, Virginia)
• Oligocene to Miocene of United States (1: Maryland)
• Oligocene of Azerbaijan (1)
• Eocene of Argentina (1), United States (4: Colorado, Missouri, Virginia)
• Paleocene to Eocene of United States (1: Virginia)
• Paleocene of Antarctica (1), United States (3: Missouri)
• Cretaceous to Paleogene of Antarctica (1)
• Cretaceous of Argentina (1), Mexico (1)
• Jurassic of France (1)
Total: 47 collections each including a single occurrence