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

@article{Smith2017ANS,
  title={A new species of Pityostrobus (Pinaceae) from the Cretaceous of California: moving towards understanding the Cretaceous radiation of Pinaceae},
  author={Selena Y. Smith and Ruth A. Stockey and Gar W Rothwell and Stefan A Little},
  journal={Journal of Systematic Palaeontology},
  year={2017},
  volume={15},
  pages={69 - 81}
}
The evolutionary history of Pinaceae is documented by numerous fossils, which include a number of anatomically preserved ovulate cones with many systematically informative characters. To date, four extinct genera have been recognized: Pseudoaraucaria, Pityostrobus, Obirastrobus and Eathiestrobus. A new pinaceous cone from the Early Cretaceous of California is described as Pityostrobus pluriresinosa sp. nov., adding to the diversity of known Cretaceous pinaceous cones. Phylogenetic analysis… 

Pityostrobus andraei (Pinaceae) from the Barremian (Lower Cretaceous) of Belgium: A Morphometric Revision

Important floristic changes took place during the Early Cretaceous (145.0–100.5 Ma). They are notably marked by a peak in conifer diversity, especially within Pinaceae. This diversification is

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

The phylogenetic relationships between extant Pinaceae and Schizolepidopsis suggest that seed wings evolved along the Pinaceae stem and not with the crown group and that, in combination with developmental genetic evidence, the simple ovuliferous scales of Pinaceae likely evolved from bilobed ovulified scales like those of Schizolespidopsis.

Araucaria lefipanensis (Araucariaceae), a new species with dimorphic leaves from the Late Cretaceous of Patagonia, Argentina.

The new species shows evidence of mosaic evolution, with cone scale complexes morphologically similar to section Eutacta and leaves similar to the sections of the broad-leaved clade, constituting a possible transitional form between these two well-defined lineages.

Pinaceous Wood from the Lower Cretaceous (Barremian—Early Aptian) of California, USA; Lower Chickabally Member, Budden Canyon Formation

Abstract. The Budden Canyon Formation is a Cretaceous unit spanning the Valanginian—Turonian interval in northern California. This marine unit includes plant-fossiliferous near-shore sequences, with

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.

Age and identity of the oldest pine fossils: COMMENT

In their study of charred conifer twigs from the Lower Cretaceous Chaswood Formation of Canada, Falcon-Lang et al. (2016) established the species Pinus mundayi that they interpreted as a “two

Incorporating fossils into the Pinaceae tree of life.

A robust phylogenetic hypothesis for the main lineages of Pinaceae is emerging after it was found that the placement of most fossils was sensitive to the method of phylogenetic reconstruction when analyzing them singly with the extant species.

Silicified plant megafossils from the upper Turonian of Vienne, western France

ABSTRACT A new locality with silicified permineralised plant megafossils is reported from the upper Turonian of Colombiers, Vienne, western France. The plant fossil assemblage consists of Geinitzia

Sareomycetes: More Diversity than Meets the Eye

Dating analyses using additional marker regions indicate the emergence of the Sareomycetes was roughly concurrent with the diversification of the genus Pinus, suggesting that this group of fungi emerged to exploit the newly-available resinous ecological niche supplied by Pinus or another, extinct group of conifers.

Cupressaceous Pollen Cones from the Early Cretaceous of Vancouver Island, British Columbia: Morinostrobus holbergensis gen. et sp. nov.

Premise of research. Four small pollen cones bearing pollen have been found attached to a leafy twig in a calcareous concretion from the Valanginian Apple Bay locality, northern Vancouver Island,

References

SHOWING 1-10 OF 49 REFERENCES

Early evolution in the Pinaceae

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.

The First Organismal Concept for an Extinct Species of Pinaceae: Pinus arnoldii Miller

The Eocene Princeton Chert locality of southern British Columbia, Canada, provides data to develop organismal concepts for several species of fossil plants, including the first extinct species of

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.

Reconsidering Relationships among Stem and Crown Group Pinaceae: Oldest Record of the Genus Pinus from the Early Cretaceous of Yorkshire, United Kingdom

Numerical cladistic analysis of anatomically preserved seed cones yields a well-resolved phylogeny of crown and stem group Pinaceae that is roughly concordant with the results of analyses that include living species only.

Comparative Chloroplast Genomics Reveals the Evolution of Pinaceae Genera and Subfamilies

The phylogenetic analyses reveal that Cedrus is clustered with Abies–Keteleeria rather than the basal-most genus of Pinaceae and that Cathaya is closer to Pinus than to Picea or Larix–Pseudotsuga, and views on subfamilial classifications differ from previous studies in terms of the rank of Cedrus and with recognition of more than two subfamilies.

A New Species of Pityostrobus from the Lower Cretaceous of California and Its Bearing on the Evolution of Pinaceae

A phylogenetic analysis using morphological data from the ovulate cones of all the extant and fossil taxa of Pinaceae, as well as those of Cryptomeria japonica, Sciadopitys verticillata, and Pararaucaria patagonica, was done and the idea that Pityostrobus represents an artificial assemblage of pinaceous taxa is supported by the analyses.

Seed cone anatomy of Cheirolepidiaceae (Coniferales): reinterpreting Pararaucaria patagonica Wieland.

Pararaucaria patagonica is assigned to Cheirolepidiaceae, documenting anatomical features for seed cones of the family and providing evidence for the antiquity of pinoid conifers leading to the origin of Pinaceae.

Pityostrobus yixianensis sp. nov., a pinaceous cone from the Lower Cretaceous of north-east China

The evolutionary and phylogenetic position of Pityostrobus yixianensis is considered to represent an ancestral intermediate between extant conifer genera such as Picea, Pseudotsuga and Larix, and is coeval with the earliest pinaceous cones from Europe and North America.

Use of Simultaneous Analyses to Guide Fossil‐Based Calibrations of Pinaceae Phylogeny

It is demonstrated that simultaneous phylogenetic analyses of chloroplast DNA (matK and rbcL) and nonmolecular characters that include both extant genera and a limited number of fossil taxa provide useful hypotheses for calibrating molecular trees.