Peter D. Ward
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View article: New paleotemperature and paleobiological results consistent with a far-traveled alternative for the Baja-BC hypothesis
New paleotemperature and paleobiological results consistent with a far-traveled alternative for the Baja-BC hypothesis Open
This study tested the Baja–British Columbia (Baja-BC) hypothesis using paleobiological and geochemical data in three separate ways. First, the pattern and values of paleotemperatures obtained from mollusks sampled from the Nanaimo Group, B…
View article: Cephalopod body size and macroecology through deep time
Cephalopod body size and macroecology through deep time Open
As actively swimming predators, cephalopods have played a key role regulating and engineering marine ecosystems for more than 500 million years and continue to do so. For the first time, we portray fluctuations of cephalopod body size incl…
View article: Late Jurassic true polar event revealed by paleomagnetic study in the North China Craton and its implication for regional tectonics and biota evolution in East Asia
Late Jurassic true polar event revealed by paleomagnetic study in the North China Craton and its implication for regional tectonics and biota evolution in East Asia Open
The reorientation of Earth through rotation of its solid shell relative to its spin axis is known as True polar wander (TPW). It is well-documented at present, but the occurrence of TPW in the geologic past remains controversial. This is e…
View article: Dissecting 20 million years of deep-water forearc sediment routing using an integrated basin-wide Bayesian chronostratigraphic framework
Dissecting 20 million years of deep-water forearc sediment routing using an integrated basin-wide Bayesian chronostratigraphic framework Open
Sedimentary deposits along convergent margins contain a record of sediment transfer and coupled tectonic processes. Deciphering the evolution of ancient convergent margins, both spatially and temporally, is challenging as their stratigraph…
View article: Three new species of Nautilus Linnaeus, 1758 (Mollusca, Cephalopoda) from the Coral Sea and South Pacific
Three new species of Nautilus Linnaeus, 1758 (Mollusca, Cephalopoda) from the Coral Sea and South Pacific Open
Nautiloids are a charismatic group of marine molluscs best known for their rich fossil record, but today they are restricted to a handful of species in the family Nautilidae from around the Coral Triangle. Recent genetic work has shown a d…
View article: Mercury evidence from southern Pangea terrestrial sections for end-Permian global volcanic effects
Mercury evidence from southern Pangea terrestrial sections for end-Permian global volcanic effects Open
The latest Permian mass extinction (LPME) was triggered by magmatism of the Siberian Traps Large Igneous Province (STLIP), which left an extensive record of sedimentary Hg anomalies at Northern Hemisphere and tropical sites. Here, we prese…
View article: Three new species of Nautilus Linnaeus, 1758 (Mollusca, Cephalopoda) from the Coral Sea and South Pacific
Three new species of Nautilus Linnaeus, 1758 (Mollusca, Cephalopoda) from the Coral Sea and South Pacific Open
This dataset contains the digitized treatments in Plazi based on the original journal article Barord, Gregory J., Combosch, David J., Giribet, Gonzalo, Landman, Neil, Lemer, Sarah, Veloso, Job, Ward, Peter D. (2023): Three new species of N…
View article: Maastricthtian ammonite and inoceramid ranges from Bay of Biscay Cretaceous-Tertiary boundary sections
Maastricthtian ammonite and inoceramid ranges from Bay of Biscay Cretaceous-Tertiary boundary sections Open
New collecting of ammonites and inoceramid bivalves from Cretaceous-Tertiary boundary sections exposed al Sopelana and Zumaya, Spain, and Hendaye and Bidart (Biarritz), France, has led to better understanding of molluscan biostratigraphy i…
View article: Phospholipase C-γ Modulates Epithelial Tight Junction Permeability through Hyperphosphorylation of Tight Junction Proteins
Phospholipase C-γ Modulates Epithelial Tight Junction Permeability through Hyperphosphorylation of Tight Junction Proteins Open
Phospholipase C-gamma (PLC-gamma) is stimulated by epidermal growth factor via activation of the epidermal growth factor receptors. The PLC inhibitor, 3-nitrocoumarin (3-NC), selectively inhibited PLC-gamma in Madin-Darby canine kidney cel…
View article: Foraging and scavenging in nautilus (<i>Nautilus</i> sp.) <i>L</i>. (Cl. Cephalopoda)
Foraging and scavenging in nautilus (<i>Nautilus</i> sp.) <i>L</i>. (Cl. Cephalopoda) Open
Species of extant nautiluses (in Nautilus and Allonautilus) have been anecdotally described as opportunistic scavengers. Here, we examine foraging and scavenging behaviors of Nautilus in field and laboratory settings. Given that nautiluses…
View article: Novel feeding and mating behaviors of a population of nautiluses, <i>Nautilus belauensis</i>, in Palau
Novel feeding and mating behaviors of a population of nautiluses, <i>Nautilus belauensis</i>, in Palau Open
The nautiloid lineage extends back nearly 500 million years but today, is represented by only two living genera, Nautilus and Allonautilus . Behavioral observations of these living nautiluses have improved our understanding of how nautiloi…
View article: Comment on “Detrital Zircons From the Nanaimo Basin, Vancouver Island, British Columbia: An Independent Test of Late Cretaceous to Cenozoic Northward Translation” by Matthews et al.
Comment on “Detrital Zircons From the Nanaimo Basin, Vancouver Island, British Columbia: An Independent Test of Late Cretaceous to Cenozoic Northward Translation” by Matthews et al. Open
Key Point Errors in stratigraphic age assignment of Cretaceous detrital zircon samples result in incorrect understanding of ages of geologic units
View article: Demographic disequilibrium in living nautiloids (Nautilus and Allonautilus): Canary in the coal mines?
Demographic disequilibrium in living nautiloids (Nautilus and Allonautilus): Canary in the coal mines? Open
Averaged demographic data from previously unfished populations of Nautilus and Allonautilus (Cephalopoda) provide a baseline to determine if a population is undisturbed and in "equilibrium" or is in "disequilibrium" as a result of fishery …
View article: A revisited phylogeography of <i>Nautilus pompilius</i>
A revisited phylogeography of <i>Nautilus pompilius</i> Open
The cephalopod genus Nautilus is considered a “living fossil” with a contested number of extant and extinct species, and a benthic lifestyle that limits movement of animals between isolated seamounts and landmasses in the Indo‐Pacific. Nau…
View article: The Paleocene cephalopod fauna from Pebble Point, Victoria (Australia) – fulcrum between two Eras
The Paleocene cephalopod fauna from Pebble Point, Victoria (Australia) – fulcrum between two Eras Open
The Paleocene cephalopod fauna from Pebble Point, Victoria (Australia) -fulcrum between two