Discovery of a “Living Dinosaur”: Globally unique modern hexactinellid sponge reefs off British Columbia, Canada

Facies ◽  
2001 ◽  
Vol 44 (1) ◽  
pp. 265-282 ◽  
Author(s):  
Manfred Krautter ◽  
Kim W. Conway ◽  
J. Vaughn Barrie ◽  
Matthias Neuweiler
Keyword(s):  
British Columbia ◽  
Hexactinellid Sponge ◽  
Sponge Reefs

scholarly journals Distribution of hexactinellid sponge reefs in the Chatham Sound region, British Columbia

2018 ◽  
Author(s):  
J Shaw ◽  
K W Conway ◽  
Y Wu ◽  
R Kung
Keyword(s):  
British Columbia ◽  
Hexactinellid Sponge ◽  
Sponge Reefs

Clones or clans: the genetic structure of a deep-sea sponge,Aphrocallistes vastus,in unique sponge reefs of British Columbia, Canada

2017 ◽  
Vol 26 (4) ◽  
pp. 1045-1059 ◽  
Author(s):  
Rachel R. Brown ◽  
Corey S. Davis ◽  
Sally P. Leys
Keyword(s):  
British Columbia ◽  
Genetic Structure ◽  
Deep Sea ◽  
Sponge Reefs

Silurian hexactinellid sponges from northern British Columbia, Canada

1998 ◽  
Vol 72 (2) ◽  
pp. 202-220 ◽  
Author(s):  
J. Keith Rigby ◽  
Joanne L. Nelson ◽  
B. S. Norford
Keyword(s):  
British Columbia ◽  
New Species ◽  
Black Shale ◽  
Continental Margin ◽  
Early Paleozoic ◽  
Hexactinellid Sponge ◽  
Hexactinellid Sponges

Faunules of largely hexactinellid sponges have been collected from siltstones of Early Silurian Wenlock or latest Landovery age within the upper Road River Group from northern British Columbia. The assemblages include the new species: Protospongia columbiana, Hexatractiella pseudonevadensis and Cyathophycus akiensis. Other taxa described include the hexactinellids Protospongia conica Rigby and Harris, 1979, Hexatractiella nevadensis (Rigby and Stuart, 1988), Diagoniella sp., Gabelia pedunculus? Rigby and Murphy, 1983, and a specimen of the monaxonid demosponge Wareiella typicala Rigby and Harris, 1979. Also included is a fragment of what must have been a steeply obconical-cylindrical hexactinellid sponge of uncertain taxonomy; it has a skeleton of robust hexactines in an unquadruled net, above a root-tuft of 10-20 spicules. Other sponge impressions include small circular clusters of hexactines with radiating, to basketlike patterns and somewhat similar, isolated and dissociated, long probably roof tuft spicules and possible basal root tuft rosettes of monaxons. The faunules are similar to other outer continental margin, black shale, sponge assemblages of the Early Paleozoic Era, and include elements previously described from northern British Columbia and central Nevada.

RECENT HEXACTINOSIDAN SPONGE REEFS (SILICATE MOUNDS) OFF BRITISH COLUMBIA, CANADA: FRAME-BUILDING PROCESSES

2006 ◽  
Vol 80 (1) ◽  
pp. 38-48 ◽  
Author(s):  
MANFRED KRAUTTER ◽  
KIM W. CONWAY ◽  
J. VAUGHN BARRIE
Keyword(s):  
British Columbia ◽  
Frame Building ◽  
Sponge Reefs

A coral reef in the Telkwa Range, British Columbia: the earliest Jurassic example

1993 ◽  
Vol 30 (4) ◽  
pp. 819-831 ◽  
Author(s):  
George D. Stanley Jr ◽  
Christopher A. McRoberts
Keyword(s):  
British Columbia ◽  
Mass Extinction ◽  
Upper Triassic ◽  
Early Jurassic ◽  
Late Triassic ◽  
Stages Of Growth ◽  
The World ◽  
Extinction Event ◽  
Three Stages ◽  
Sponge Reefs

An end-Triassic mass extinction profoundly affected reef ecosystems that flourished in the Late Triassic Tethys seaway. The collapse of Late Triassic coral–sponge reefs was followed by an Early Jurassic (Hettangian–Sinemurian) perturbation interval with a near-global absence of reefs and sharp reductions in diversity. A Jurassic (Sinemurian) reef in the Hazelton Group of central British Columbia appears to fill the gap. Its paleoecology and composition show it to be the first large-framework example in North America and perhaps the world. It demonstrates that the reef-building Triassic coral, Phacelostylophyllum, survived the extinction event and was constructing reefs in Early Jurassic time during a global reef eclipse. The reef is a 48 m thick bioherm that grew within the island-arc complex of Stikinia. Following a decrease in volcanism, reef building began with bivalves growing upon water-lain tuffs. The reef was dominated by large dendroid–phaceloid corals, primarily Phacelostylophyllum rugosum, a species known from the Upper Triassic of Italy, which produced extensive constructional framework. Other fossils include bivalves, solitary and colonial corals, and a variety of dwellers and reef destroyers. Three stages of growth are present. During siliciclastic deposition, the reef mound grew into a bioherm with steep relief and flanking beds. Two intervals of arrested growth marked by pyroclastic lenses and hard grounds punctuated the reef's history. The reef was finally overwhelmed by volcaniclastic sediment, was uplifted, and developed paleokarst. The reef is unique in understanding the dynamics of recovery after the end-Triassic mass extinction.

scholarly journals Trophic ecology of glass sponge reefs in the Strait of Georgia, British Columbia

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Amanda S. Kahn ◽  
Jackson W. F. Chu ◽  
Sally P. Leys
Keyword(s):  
British Columbia ◽  
Trophic Ecology ◽  
Glass Sponge ◽  
Strait Of Georgia ◽  
Sponge Reefs

Modern siliceous sponge reefs in a turbid, siliciclastic setting: Fraser River delta, British Columbia, Canada

2004 ◽  
Vol 2004 (6) ◽  
pp. 335-350 ◽  
Author(s):  
Kim W. Conway ◽  
J. Vaughn Barrie ◽  
Manfred Krautter
Keyword(s):  
British Columbia ◽  
River Delta ◽  
Fraser River ◽  
Siliceous Sponge ◽  
Fraser River Delta ◽  
Sponge Reefs

Sponge Reefs of the British Columbia, Canada Coast: Impacts of Climate Change and Ocean Acidification

2017 ◽  
pp. 429-445 ◽  
Author(s):  
K. W. Conway ◽  
F. Whitney ◽  
S. P. Leys ◽  
J. V. Barrie ◽  
M. Krautter
Keyword(s):  
Climate Change ◽  
British Columbia ◽  
Ocean Acidification ◽  
Sponge Reefs ◽  
Impacts Of Climate Change
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