Exceptional crinoid occurrences and associated carbonates of the Keasey Formation (Early Oligocene) at Mist, Oregon, USA

Burns, Casey; Campbell, Kathleen A.; Mooi, Rich

doi:10.1016/j.palaeo.2005.04.023

Cited by 12 publications

(12 citation statements)

References 23 publications

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“…2003; Stöhr and Segonzac 2004). Localities at which crinoids are abundant are unknown, but unusually, well‐preserved crinoids have been described from possibly methanogenic carbonates of early Oligocene age (Burns et al. 2005).…”

Section: Palaeoecological Analysismentioning

confidence: 99%

Tithonia oxfordiana, a new irregular echinoid associated with Jurassic seep deposits in south‐east France

2011

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Abstract:The infaunal irregular echinoid, Tithonia oxfordiana, is described and compared to congeneric species previously described from Upper Jurassic and lowermost Cretaceous strata. This new species characterizes a monospecific echinoid assemblage, which occurs only in some places where deep-marine middle Oxfordian deposits are exposed in south-east France. Specimens are closely packed and clearly concentrated at the top of small carbonate chemoherms; a close connection of the echinoids with the emission of reduced chemicals, which were oxidized by chemoautotrophic bacteria, is highly probable. Based on general test shape and plate architecture, T. oxfordiana probably was a deposit feeder on chemosynthetic organic matter produced by such bacteria. In view of the fact that T. oxfordiana is the sole species of the Jurassic genus Tithonia known from Oxfordian strata, it is postulated that chemoherms possibly acted as refugia for these peculiar echinoids, which have an episodic record between the Callovian and Valanginian.

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Section: Palaeoecological Analysismentioning

confidence: 99%

Tithonia oxfordiana, a new irregular echinoid associated with Jurassic seep deposits in south‐east France

2011

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“…Globally, the fossil record of stalked crinoids is extremely good for the Middle to Late Cretaceous 20 – 22 . Deep water isocrinid occurrences are found from the early Eocene (Rösnäs Formation, Denmark 20 , the Eocene London Clay, England 23 ), the early Oligocene (Keasey Formation, Oregon, USA 24 – 27 ), the late Oligocene (West Indies 28 ), the Miocene (Japan 29 , 30 ) and the Pliocene (Philippines 31 ), and these are consistent with the argument that stalked crinoids migrated from shallower to deeper water in the early Cenozoic 4 , 6 – 8 . However, in the Northern Hemisphere some shallow water isocrinids persisted until the end of the Danian 20 , 24 , and there are a few isolated occurrences from the late Paleocene 6 and the late Oligocene 6 .…”

Section: Introductionmentioning

confidence: 99%

Globally discordant Isocrinida (Crinoidea) migration confirms asynchronous Marine Mesozoic Revolution

et al. 2018

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The Marine Mesozoic Revolution (MMR, starting ~200 million years ago) changed the ecological structure of sea floor communities due to increased predation pressure. It was thought to have caused the migration of less mobile invertebrates, such as stalked isocrinid crinoids, into deeper marine environments by the end of the Mesozoic. Recent studies questioned this hypothesis, suggesting the MMR was globally asynchronous. Alternatively, Cenozoic occurrences from Antarctica and South America were described as retrograde reversions to Palaeozoic type communities in cool water. Our results provide conclusive evidence that isocrinid migration from shallow to deep water did not occur at the same time all over the world. The description of a substantial new fauna from Antarctica and Australia, from often-overlooked isolated columnals and articulated crinoids, in addition to the first compilation to our knowledge of Cenozoic Southern Hemisphere isocrinid data, demonstrates a continuous record of shallow marine isocrinids from the Cretaceous-Paleogene to the Eocene/Oligocene boundary.

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“…It is thus possible that bathymodiolins were present in this area during the Miocene but only in deeper water strata than those that are presently FIGURE 10-Geologic ranges of the bathymodiolin mussels in western Washington State, U.S.A. uplifted. Yet unclear is the identity of the Modiolus reported from Mio-Pliocene seep deposits in the Quinault Formation (Campbell, 1992) and bathymodiolins have never been reported from any of the Cenozoic seeps in Oregon and California (Squires and Gring, 1996;Burns et al, 2005;Campbell, 2006). Today bathymodiolins are nearly absent from the NE Pacific: only a few as-yet unidentified mytilids occur at the hydrothermal vents of the Juan de Fuca Ridge (McKiness et al, 2005) but bathymodiolins have never been reported from the well-sampled seeps along the western North American continental margin from California to Alaska (Suess et al, 1985;Barry et al, 1996;Levin and Mendoza, 2007; see also distribution maps in Génio et al, 2008 andDuperron, 2010).…”

Section: Discussionmentioning

confidence: 99%

The earliest bathymodiolin mussels: an evaluation of Eocene and Oligocene taxa from deep-sea methane seep deposits in western Washington State, USA

Kiel

Amano

2013

J. Paleontol.

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Bathymodiolin mussels are a group of bivalves associated with deep-sea hydrothermal vents and other reducing deep-sea habitats, and they have a particularly rich early Cenozoic fossil record in western Washington State, U.S.A. Here we recognize six species from middle Eocene to latest Oligocene deep-water methane seep deposits in western Washington. Two of them are new: Vulcanidas? goederti from the middle Eocene Humptulips Formation and Bathymodiolus (sensu lato) satsopensis from the late Oligocene part of the Lincoln Creek Formation. Very similar to the latter but more elongate are specimens from the early Oligocene Jansen Creek Member of the Makah Formation and are identified as B. (s.l.) aff. satsopensis. Bathymodiolus (s.l.) inouei Amano and Jenkins, 2011 is reported from the Lincoln Creek Formation. Idas? olympicus Kiel and Goedert, 2007 was previously known from late Eocene to Oligocene whale and wood falls in western Washington and is here reported from Oligocene seep deposits of the Makah and Pysht Formations. Vulcanidas? goederti occurs at a seep deposit from a paleodepth possibly as great as 2000 m, suggesting that its living relative, Vulcanidas insolatus Cosel and Marshall, 2010, which lives at depths of only 150–500 m, is derived from a deep-water ancestor. The bathymodiolins in western Washington indicate that the group originated at least in the middle Eocene and underwent a first diversification in the late Eocene to Oligocene. Early ontogenetic shells of all fossil species investigated so far, including the middle Eocene Vulcanidas? goederti, reflect planktotrophic larval development indicating that this developmental mode is an ancestral trait of bathymodiolins.

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Exceptional crinoid occurrences and associated carbonates of the Keasey Formation (Early Oligocene) at Mist, Oregon, USA

Cited by 12 publications

References 23 publications

Tithonia oxfordiana, a new irregular echinoid associated with Jurassic seep deposits in south‐east France

Tithonia oxfordiana, a new irregular echinoid associated with Jurassic seep deposits in south‐east France

Globally discordant Isocrinida (Crinoidea) migration confirms asynchronous Marine Mesozoic Revolution

The earliest bathymodiolin mussels: an evaluation of Eocene and Oligocene taxa from deep-sea methane seep deposits in western Washington State, USA

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