References

Berberis and Mahonia. A taxonomic revision

10.1111/j.1095-8339.1961.tb00889.x · 1961 · External reference

The late Oligocene Creede flora, Colorado

1987 · External reference

Fossil plants of the Tertiary Beaverhead basins in southwestern Montana

1969 · External reference

The Metzel Ranch flora of the Upper Ruby River Basin, Southwestern Montana

1972 · External reference

The recognizable species of the Green River flora

1934 · External reference

Las plantas con flor en el registro fósil

1998 · External reference

Magnoliophyta (Angiospermae)

1993 · External reference

Berberidaceae

1964 · External reference

Unresolved reference

1981 · External reference

Classification of the architectures of dicotyledoneous leaves

10.1002/j.1537-2197.1973.tb10192.x · 1973 · External reference

Catalogue of Cenozoic megafossil plants in China

1996 · External reference

A fossil earthstar (Geasteraceae; Gasteromycetes) from the Late Cenozoic of Puebla, Mexico

10.1002/j.1537-2197.1993.tb15348.x · 1993 · External reference

Latest occurrence of the extinct genus Cedrelospermum (Ulmaceae) in North America: Cedrelospermum manchesteri from Mexico

10.1016/0034-6667(94)90102-3 · 1994 · External reference

Fossil legume fruits from tertiary strata of Puebla, Mexico

10.1139/b94-129 · 1994 · External reference

Eucommia constans n.sp. fruits from upper Cenozoic strata of Puebla, Mexico: morphological and anatomical comparison with Eucommia ulmoides Oliver

10.1086/297150 · 1994 · External reference

Oligocene fossil plants from the John Day Formation

1987 · External reference

Paleocorologia de angiospermas de la flora mexicana durante el Mesozoico y Terciario–Algunas evidencias palinológicas

1996 · External reference

Unresolved reference

External reference

The Oligocene Bridge Creek flora of the John Day Formation, Oregon

1997 · External reference

An association of Anacardiaceae in Oligocene strata of Tepexi de Rodrı́guez, Puebla, Mexico

1997 · External reference

Unresolved reference

External reference

Neogene floral change in Japan

1961 · External reference

Miocene floras of southwestern Hokkaido, Japan

1963 · External reference

Paleobiogeographic relationships of Angiosperms from the Cretaceous and Early Tertiary of the North American area

10.1007/bf02995927 · 1990 · External reference

Taxonomic revision of the Spermatopsida of the Oligocene Creede flora, Southern Colorado

1990 · External reference