Ovulate Cones of Schizolepidopsis ediae sp. nov. Provide Insights into the Evolution of Pinaceae

  title={Ovulate Cones of Schizolepidopsis ediae sp. nov. Provide Insights into the Evolution of Pinaceae},
  author={Kelly K S Matsunaga and Patrick S. Herendeen and Fabiany Herrera and Niiden Ichinnorov and Peter R. Crane and Gongle Shi},
  journal={International Journal of Plant Sciences},
  pages={490 - 507}
Premise of research. The extinct conifer genus Schizolepidopsis is characterized by deeply bilobed ovuliferous scales bearing two adaxial seeds. Although it is frequently placed in Pinaceae, the evidence for a close relationship with the family is mixed. Resolving the affinities of Schizolepidopsis has important implications for the age of Pinaceae because putative reports of the genus extend into the Late Permian. We describe a new species, Schizolepidopsis ediae sp. nov., based on specimens… 

New genus of Cupressaceae from the Upper Cretaceous of Patagonia (Argentina) fills a gap in the evolution of the ovuliferous complex in the family

It is concluded that the OC morphology shown by the subfamily Athrotaxoideae is intermediate between two of the most common morphologies within extant and extinct Cupressaceae species, one of which would show adaptative advantages over basal morphologies.

Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding.

The earliest and best-documented evidence of a "shedder" seed cone from the Aptian-Albian of Mongolia is described and the exquisite preservation of the trichomes in L. mellonae raises questions about their potential ecological function in the cones of fossil and living Pinaceae.

A permineralized Early Cretaceous lycopsid from China and the evolution of crown clubmosses.

Recognition of Lycopodicaulis in Asia during the Early Cretaceous indicates the presence of crown Lycopodiaceae at this time, and striking similarities of stem anatomy with extant species provide a framework for the understanding of the interaction of branching and vascular anatomy in crown-group lycopsids.

On the evolution of ectomycorrhizal fungi On the evolution of ectomycorrhizal

The evolution of ectomycorrhiza within fungi has evolved many times in different clades, and the rate of evolution has not varied much through time, but has varied between clades.



Pinaceae-like reproductive morphology in Schizolepidopsis canicularis sp. nov. from the Early Cretaceous (Aptian-Albian) of Mongolia.

Schizolepidopsis canicularis produced winged seeds that formed in a manner that is unique to Pinaceae among extant conifers, and may potentially help reconcile the appearance of the family in the fossil record with results based on phylogenetic analyses of molecular data.

The seed cone Eathiestrobus gen. nov.: fossil evidence for a Jurassic origin of Pinaceae.

An anatomically preserved fossil conifer seed cone described here extends the stratigraphic range of Pinaceae nearly 30 million years, thus reducing the apparent discrepancy between evidence from the fossil record and inferences from systematic studies of living species.

A New Voltzian Seed Cone from the Early Cretaceous of Mongolia and Its Implications for the Evolution of Ancient Conifers

Krassilovia mongolica provides evidence of the additional diversity of extinct voltzian conifers and shows that some persisted to inhabit forest-moor swamp environments in eastern Asia during the Early Cretaceous.

Hanskerpia gen. nov. and phylogenetic relationships among the most ancient conifers (Voltziales)

Numerical cladistic analysis reveals that this novel combination of characters defines a new fossil plant genus and species of walchian conifers Hanskerpia hamiltonensis, and supports some previously proposed relationships among the most primitive conifer and other Paleozoic coniferophytes.

A New Species of the Extinct Genus Schizolepis from the Jurassic Daohugou Flora, Inner Mongolia, China with Special Reference to the Fossil Diversity and Evolutionary Implications

Schizolepis daohugouensis sp. nov. is described from the Jurassic sediments of Daohugou flora, from Ningcheng County, Inner Mongolia Autonomous Region, China. The female cone is slender, cylindrical

A lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae).

This description of an anatomically preserved seed cone extends the fossil record of Picea to the Valanginian Stage of the Early Cretaceous, thereby resolving a ghost lineage predicted by molecular divergence analyses, and offers new insight into the evolution of Pinaceae.

Whole-Plant Reconstruction and Phylogenetic Relationships of Elatides zhoui sp. nov. (Cupressaceae) from the Early Cretaceous of Mongolia

Elatides zhoui provides further evidence for the diversity of Cupressaceae sensu lato during the Cretaceous and supports the hypothesis that cunninghamioid conifers in particular were diverse and widespread during the early evolution of the Cupressidae.

A new species of Pityostrobus (Pinaceae) from the Cretaceous of California: moving towards understanding the Cretaceous radiation of Pinaceae

A new pinaceous cone from the Early Cretaceous of California is described as Pityostrobus pluriresinosa sp.