Search Results - "Mapes, Gene"

Middle Jurassic evidence for the origin of Cupressaceae: A paleobotanical context for the roles of regulatory genetics and development in the evolution of conifer seed cones by Spencer, Alan R. T., Mapes, Gene, Bateman, Richard M., Hilton, Jason, Rothwell, Gar W.

“…• Premise of the study: Triassic and Jurassic fossils record structural changes in conifer seed cones through time, provide the earliest evidence for…”
Get full text

Structure and relationships of the Jurassic conifer seed cone Hughmillerites juddii gen. et comb. nov.: Implications for the origin and evolution of Cupressaceae by Rothwell, Gar W., Stockey, Ruth A., Mapes, Gene, Hilton, Jason

“…Anatomically preserved Jurassic conifer seed cones originally described as Conites juddi Seward and Bancroft are reinvestigated and assigned to Hughmillerites…”
Get full text

Reconsidering Relationships among Stem and Crown Group Pinaceae: Oldest Record of the Genus Pinus from the Early Cretaceous of Yorkshire, United Kingdom by Ryberg, Patricia E., Rothwell, Gar W., Stockey, Ruth A., Hilton, Jason, Mapes, Gene, Riding, James B.

“…This study describes a specimen that extends the oldest fossil evidence of Pinus L. to the Early Cretaceous Wealden Formation of Yorkshire, UK (131-129 million…”
Get full text

Reconstruction of the Pennsylvanian-age walchian conifer Emporia cryptica sp. nov . (Emporiaceae: Voltziales) by Hernandez-Castillo, Genaro R., Stockey, Ruth A., Rothwell, Gar W., Mapes, Gene

“…This paper provides a whole plant concept for a new species, Emporia cryptica sp. nov. Hernandez-Castillo, Stockey, Rothwell & Mapes (Emporiaceae: Voltziales),…”
Get full text

A New Voltzialean ConiferEmporia royaliisp. nov. (Emporiaceae) from the Hamilton Quarry, Kansas by Hernandez‐Castillo, Genaro R., Stockey, Ruth A., Mapes, Gene, Rothwell, Gar W.

“…A new species of extinct conifer plants,Emporia royaliisp. nov. Hernandez‐Castillo, Stockey, Mapes et Rothwell (Emporiaceae: Voltziales), is described from the…”
Get full text

ReconstructingEmporia lockardii(Voltziales: Emporiaceae) and Initial Thoughts on Paleozoic Conifer Ecology by Hernandez‐Castillo, Genaro R., Stockey, Ruth A., Rothwell, Gar W., Mapes, Gene

“…A new plant concept for the extinct conifer speciesEmporia lockardii(Mapes & Rothwell) Mapes & Rothwell (Emporiaceae) is developed from fossils collected at…”
Get full text

Growth architecture of Thucydia Mahoningensis, a model for primitive walchian conifer plants by Hernandez-Castillo, Genaro R, Rothwell, Gar W, Stockey, Ruth A, Mapes, Gene

“…A large number of vegetative and fertile branching systems of Thucydia mahoningensis provide data for interpreting the growth architecture and life-history…”
Get full text

An herbaceous fossil conifer: Gymnospermous ruderals in the evolution of Mesozoic vegetation by Rothwell, Gar W., Grauvogel-Stamm, Léa, Mapes, Gene

“…Fast growing conifers have been recognized in disturbed habitats of the transitional Lower Middle Triassic Grès à Voltzia delta from the Buntsandstein in…”
Get full text

Validation of the Names Utrechtiaceae, Utrechtia, and Utrechtia floriniformis by Rothwell, Gar W., Mapes, Gene

“…The details of the type specimens of U. floriniformis and their repository are reported in order to validly publish the names Utrechtiaceae Mapes & G. W…”
Get full text

Compound pollen cone in a Paleozoic conifer by Hernandez-Castillo, Genaro R, Rothwell, Gar W, Mapes, Gene

“…A rich fossil biota from a Pennsylvanian age deposit of eastern North America contains numerous vegetative and fertile specimens that conform to a single…”
Get full text

The seed cone Eathiestrobus gen. nov.: Fossil evidence for a Jurassic origin of Pinaceae by Rothwell, Gar W., Mapes, Gene, Stockey, Ruth A., Hilton, Jason

“…Premise of the study: Pinaceae and nonpinoid species are sister groups within the conifer clade as inferred from molecular systematic comparisons of living…”
Get full text

Anatomically preserved vojnovskyalean seed plants in Upper Pennsylvanian (Stephanian) marine shales of North America by Rothwell, Gar W., Mapes, Gene, Mapes, Royal H.

“…Upper Pennsylvanian dysoxic marine shales of midcontinent North America yield permineralized remains of apparently extrabasinal vegetation. A large percentage…”
Get full text

Diversity of Ancient Conifers: The Jurassic Seed ConeBancroftiastrobus digitatagen. et sp. nov. (Coniferales) by Rothwell, Gar W., Mapes, Gene, Stockey, Ruth A., Hilton, Jason

“…Premise of research. A third genus of anatomically preserved conifer seed cones has been recognized from a Late Jurassic deposit in northeastern Scotland. This…”
Get full text

Hanskerpia gen. nov. and Phylogenetic Relationships among the Most Ancient Conifers (Voltziales) by Rothwell, Gar W., Mapes, Gene, Hernandez-Castillo, Genaro R.

“…A new fossilized walchian (Voltziales) conifer plant from the Late Pennsylvanian Hamilton Quarry of Kansas, U.S.A. combines morphological characters of the…”
Get full text

Diversity of Ancient Conifers: The Jurassic Seed Cone Bancroftiastrobus digitata gen. et sp. nov. (Coniferales) by Rothwell, Gar W., Mapes, Gene, Stockey, Ruth A., Hilton, Jason

“…Premise of research. A third genus of anatomically preserved conifer seed cones has been recognized from a Late Jurassic deposit in northeastern Scotland. This…”
Get full text

Reconsidering Relationships among Stem and Crown Group Pinaceae: Oldest Record of the GenusPinusfrom the Early Cretaceous of Yorkshire, United Kingdom by Ryberg, Patricia E., Rothwell, Gar W., Stockey, Ruth A., Hilton, Jason, Mapes, Gene, Riding, James B.

“…This study describes a specimen that extends the oldest fossil evidence ofPinusL. to the Early Cretaceous Wealden Formation of Yorkshire, UK (131–129 million…”
Get full text

Reconstructing Emporia lockardii (Voltziales: Emporiaceae) and initial thoughts on Paleozoic conifer ecology by Hernandez-Castillo, Genaro R, Stockey, Ruth A, Rothwell, Gar W, Mapes, Gene

“…A new plant concept for the extinct conifer species Emporia lockardii (Mapes & Rothwell) Mapes & Rothwell (Emporiaceae) is developed from fossils collected at…”
Get full text

new Voltzialean conifer Emporia royalii sp. nov. (Emporiaceae) from the Hamilton Quarry, Kansas by Hernandez-Castillo, Genaro R, Stockey, Ruth A, Mapes, Gene, Rothwell, Gar W

“…A new species of extinct conifer plants, Emporia royalii sp. nov. Hernandez-Castillo, Stockey, Mapes et Rothwell (Emporiaceae: Voltziales), is described from…”
Get full text

Pollen cone anatomy of Classostrobus crossii sp. nov. (Cheirolepidiaceae) by Rothwell, Gar W., Mapes, Gene, Hilton, Jason, Hollingworth, Neville T.

“…Discovery of a permineralized fossil cone in Mesozoic deposits of southern England provides an opportunity to document the first detailed evidence of internal…”
Get full text

Barthelia furcata gen. et sp. nov., with a Review of Paleozoic Coniferophytes and a Discussion of Coniferophyte Systematics by Rothwell, Gar W., Mapes, Gene

“…A conifer-like plant occurs among the rich fossil biota at the Late Pennsylvanian-age Hamilton Quarry in southeastern Kansas. Barthelia furcata gen. et sp…”
Get full text