Late Cretaceous-early Tertiary gastropods from southwestern Patagonia, Argentina

1994 ◽  
Vol 68 (2) ◽  
pp. 257-274 ◽  
Author(s):  
Miguel Griffin ◽  
Mario A. Hünicken

The continuous sequence of Maastrichtian to Paleocene sediments exposed in the Sierra Dorotea area in southwestern Santa Cruz (Argentina) contains a rich molluscan fauna with many elements characteristic of the Weddellian Faunistic Province. The presence in this fauna of genera such as Taioma, Heteroterma, Fyfea, Zemacies, and Priscaphander suggests close affinities with faunas of similar age from New Zealand, further supporting the existence of continuous shallow-sea conditions along the southern margin of the Pacific Ocean during the end of the Cretaceous and beginning of the Tertiary. In this paper 25 species are described, of which six are new: Pseudofax costellatus n. sp., Taioma patagonica n. sp., Heteroterma elegans n. sp., Fyfea beui n. sp., Priscaphander sanjosensis n. sp., and Priscaphander bracaccinii n. sp.

1995 ◽  
Vol 69 (4) ◽  
pp. 692-702 ◽  
Author(s):  
William J. Zinsmeister ◽  
Miguel Griffin

The new subfamily Struthiopterinae is proposed for the aporrhaid gastropods occurring in the Late Cretaceous-early Tertiary Weddellian Province along the southern margin of the Pacific. The following genera are placed within the Struthiopterinae: Struthioptera Finlay and Marwick, 1937; Austroaporrhais n. gen.; and Struthiochenopus n. gen. The temporal and biogeographic distribution of members of Struthiopterinae show a similar pattern to other Southern Hemisphere groups of Late Cretaceous and early Cenozoic molluscs with initial disappearance from the western Australasia of the Weddellian Province by the Paleocene while surviving in Antarctica until the late Eocene and eventually disappearing in southern South America during the early Miocene.Also included in this paper is a reappraisal of the species assignable to these genera from Late Cretaceous and early Tertiary of New Zealand, Antarctica, and southern South America together with the description of five new species. The following new species of the Struthiopterinae are described: Austroaporrhais larseni n. sp., A. stilwelli n. sp., A. dorotensis n. sp., Struthiochenopus antarcticus n. sp., and S. philippii n. sp.


Author(s):  
Elizabeth Sinn

This chapter takes a broad look at the Pacific Ocean in relation to Chinese migration. As trade, consumption and capital flows followed migrants, powerful networks were woven and sustained; in time, the networks fanned across the Pacific from British Columbia along the West Coast of the United States to New Zealand and Australia. The overlapping personal, family, financial and commercial interests of Chinese in California and those in Hong Kong, which provide the focus of this study, energized the connections and kept the Pacific busy and dynamic while shaping the development of regions far beyond its shores. The ocean turned into a highway for Chinese seeking Gold Mountain, marking a new era in the history of South China, California, and the Pacific Ocean itself.


Zootaxa ◽  
2006 ◽  
Vol 1172 (1) ◽  
pp. 1
Author(s):  
WOLFGANG STERRER

Ten species of Gnathostomulida, three new to science, are reported from the SE end of South Island, New Zealand: Haplognathia asymmetrica, H. gubbarnorum, H. rosea, H. ruberrima, Pterognathia sica, P. ugera, P. tuatara n. sp., P. portobello n. sp., Gnathostomula cf. salotae and Austrognatharia australis n. sp. This paper brings the number of species known from New Zealand to 12, of species known from the Pacific Ocean to 43, and of described gnathostomulid species worldwide to 98.


2016 ◽  
Vol 154 ◽  
pp. 138-173 ◽  
Author(s):  
Nicky M. Wright ◽  
Maria Seton ◽  
Simon E. Williams ◽  
R. Dietmar Müller

1990 ◽  
Vol 64 (3) ◽  
pp. 373-376 ◽  
Author(s):  
William. J. Zinsmeister ◽  
Jeffrey D. Stilwell

A new species of the late Mesozoic–Cenozoic family Ringiculidae (Ringicula (Ringicula) cockburnensis n. sp.) is described from basal glauconitic beds of late Eocene age of Cockburn Island, Antarctica, and is the first reported occurrence of the family Ringiculidae from the continent of Antarctica. Ringicula (R.) cockburnensis n. sp. most closely resembles R. castigata from the middle Oligocene Duntroonian Stage of New Zealand and provides further support for the strong provinciality (Weddellian Province) that existed along the southern margin of the Pacific during the Late Cretaceous and early Tertiary.


1977 ◽  
Vol 28 (3) ◽  
pp. 361 ◽  
Author(s):  
PC Heemstra ◽  
JE Randall

The marine fish family Emmelichthyidae is redefined to include only the genera Emmelichthys (four species), Erythrocles (four species) and Plagiogeneion (two species). Two new species of Emmelichthys from the Pacific Ocean are described. Emmelichthys nitidus Richardson is divided into two subspecies: E. nitidus nitidus occurring from South Africa to New Zealand and E. nitidus cyanescens (Guichenot) from the Juan Fernandez Islands and coast of Chile. Descriptions and keys to the genera and species are provided.


2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Germana Nicklin

Maritime security in the Pacific differs according to whose security is under threat and in what geographical location. Like the fluidity of the ocean, maritime security is dynamic involving multiple interests. But the Pacific is also a very bordered space. Drawing on a December 2019 study tour of US defence facilities in Hawai’i, this article addresses the question “How are United States (US) and New Zealand maritime security interests bordered in the Pacific and what are the implications?” First, the article situates maritime security within state territoriality and defence of borders. It then examines the Pacific Ocean as a bordered space, and sketches US and New Zealand interests within it, including differentiating Indo-Pacific from Pacific. Next, each country’s means of securing their maritime domains in the Pacific is explicated, the arenas of cooperation and gaps in knowledge worth re searching further. It concludes by discussing US-NZ maritime cooperation with in the framing of a Pacific maritime borderscape. One potential borderscape is the Polynesian Triangle. This article argues that defining a specifically bordered theatre of cooperation such as the Polynesian Triangle, driven by Pacific Island needs, is required to provide balance and visibility to non-military maritime security matters. Such a theatre of cooperation warrants further research.


1988 ◽  
Vol 1 (21) ◽  
pp. 182
Author(s):  
Orville T. Magoon ◽  
Joan L. Pope ◽  
Robert L. Sloan ◽  
Donald D. Treadwell

Appropriately designed, constructed, and maintained rubble mound seawalls are an efficient and cost-effective means of protecting erodible sections of exposed coastline. This conclusion is supported by more than 25 years of satisfactory seawall performance along the Pacific Ocean coast of Santa Cruz County, California, U.S.A. Important factors in satisfactory seawall performance include a clear understanding of the oceanographic and geologic design parameters, a vigorous inspection program during construction, and continued observation and maintenance of the structures.


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