New Eocene hydrocarbon seep decapod crustacean (Anomura: Galatheidae: Shinkaiinae) and its paleobiology

2008 ◽  
Vol 82 (5) ◽  
pp. 1021-1029 ◽  
Author(s):  
Carrie E. Schweitzer ◽  
Rodney M. Feldmann
Keyword(s):  
Pacific Ocean ◽  
Hydrothermal Vent ◽  
Decapod Crustacean ◽  
Range Extension ◽  
Hydrocarbon Seep ◽  
Crustacean Species ◽  
The Pacific ◽  
Molluscan Fauna ◽  
The Pacific Ocean ◽  
Western Washington

A new decapod crustacean species, Shinkaia katapsyxis, is reported from the Eocene Humptulips Formation of western Washington, USA. The specimens were collected from a hydrocarbon seep deposit that has been well-documented and contains a well-described molluscan fauna. The new occurrence extends the geologic range of the genus Shinkaia Baba and Williams, 1998, and subfamily Shinkaiinae Baba and Williams, 1998, into the Eocene from its only other known occurrences in hydrothermal vent environments in the Pacific Ocean. The range extension of an extant decapod genus into the Eocene is not uncommon and adds to the evidence that the Decapoda may be unusually resistant to extinctions and are distinctly conservative evolutionarily.

Late Cretaceous-early Tertiary gastropods from southwestern Patagonia, Argentina

1994 ◽  
Vol 68 (2) ◽  
pp. 257-274 ◽  
Author(s):  
Miguel Griffin ◽  
Mario A. Hünicken
Keyword(s):  
New Zealand ◽  
Pacific Ocean ◽  
Late Cretaceous ◽  
Shallow Sea ◽  
Santa Cruz ◽  
Continuous Sequence ◽  
Early Tertiary ◽  
The Pacific ◽  
Molluscan Fauna ◽  
The Pacific Ocean

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.

scholarly journals Phylogeny of hydrothermal vent Iphionidae, with the description of a new species (Aphroditiformia, Annelida)

ZooKeys ◽  
2018 ◽  
Vol 779 ◽  
pp. 89-107
Author(s):  
Marina F. McCowin ◽  
Greg W. Rouse
Keyword(s):  
Pacific Ocean ◽  
Hydrothermal Vent ◽  
Hydrothermal Vents ◽  
East Pacific Rise ◽  
Rrna Genes ◽  
28S Rrna ◽  
West Pacific ◽  
East Pacific ◽  
The Pacific ◽  
The Pacific Ocean

The scale-worm family Iphionidae consists of four genera. Of these, Thermiphione has two accepted species, both native to hydrothermal vents in the Pacific Ocean; T.fijiensis Miura, 1994 (West Pacific) and T.tufari Hartmann-Schröder, 1992 (East Pacific Rise). Iphionella is also known from the Pacific, and has two recognized species; Iphionellarisensis Pettibone, 1986 (East Pacific Rise, hydrothermal vents) and I.philippinensis Pettibone, 1986 (West Pacific, deep sea). In this study, phylogenetic analyses of Iphionidae from various hydrothermal vent systems of the Pacific Ocean were conducted utilizing morphology and mitochondrial (COI and 16S rRNA) and nuclear (18S and 28S rRNA) genes. The results revealed a new iphionid species, described here as Thermiphionerapanuisp. n. The analyses also demonstrated the paraphyly of Thermiphione, requiring Iphionellarisensis to be referred to the genus, as Thermiphionerisensis (Pettibone, 1986).

Range Extension of Flag Rockfish (Sebastodes rubrivinctus) to Aleutian Islands

1969 ◽  
Vol 26 (7) ◽  
pp. 1955-1956 ◽  
Author(s):  
E. A. Best ◽  
Peter J. Eldridge
Keyword(s):  
Pacific Ocean ◽  
Gulf Of Alaska ◽  
Range Extension ◽  
Aleutian Islands ◽  
The Pacific ◽  
The Pacific Ocean

During August 1967, 12 specimens of Sebastodes rubrivinctus were collected from the Pacific Ocean off Amchitka Island, Alaska. This is a westward extension of their known range from the Gulf of Alaska.

On the Pacific Ocean regime shift

2001 ◽  
Vol 28 (19) ◽  
pp. 3721-3724
Author(s):  
Cathy Stephens
Keyword(s):  
Pacific Ocean ◽  
Regime Shift ◽  
The Pacific ◽  
The Pacific Ocean
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