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Seirocrinus

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Journal Article
Published: 01 March 1991
Journal of Paleontology (1991) 65 (2): 300–307.
Image
Vertical bed covered with pentacrinitid crinoids (?  <b>Seirocrinus</b> ; RTMP 200...
Published: 09 June 2006
Fig. 2. Vertical bed covered with pentacrinitid crinoids (? Seirocrinus ; RTMP 2005.27.1-46), south shore of Williston Lake at Black Bear Ridge; associated with Lower Pliensbachian ammonite Acanthopleuroceras sp. cf. A. thomsoni and radiolarians.
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FIGURE 2 — <b>Seirocrinus</b> subangularis  from the Posidonia Shales of Southern ...
in > PALAIOS
Published: 01 February 2004
FIGURE 2 — Seirocrinus subangularis from the Posidonia Shales of Southern Germany. (A) Medium-sized individual broken off from its driftwood. Probably the stem landed first, so that the permanently splayed crown came to rest with the aboral side down (Hauff Museum, Holzmaden, Germany). Note
Journal Article
Journal: PALAIOS
Published: 01 February 2004
PALAIOS (2004) 19 (1): 3–16.
...FIGURE 2 — Seirocrinus subangularis from the Posidonia Shales of Southern Germany. (A) Medium-sized individual broken off from its driftwood. Probably the stem landed first, so that the permanently splayed crown came to rest with the aboral side down (Hauff Museum, Holzmaden, Germany). Note...
FIGURES | View All (12)
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FIGURE 9 —Specimens from Hauff Museum, Holzmaden, Germany. Crowns of  Penta...
in > PALAIOS
Published: 01 February 2004
FIGURE 9 —Specimens from Hauff Museum, Holzmaden, Germany. Crowns of Pentacrintes briareus started like those of Seirocrinus (A), but stopped growing at an early stage and did not develop arm couplings. The cirral tuft protecting the stem-calyx connection is much larger than in Seirocrinus
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FIGURE 7 —The long articulated spines (broken off except in A) in the radia...
in > PALAIOS
Published: 01 February 2004
FIGURE 7 —The long articulated spines (broken off except in A) in the radials of the Seirocrinus calyx (black) served as splints to keep the large crown from tilting in the weakest part of the stem (A – C). In aboral views (D–E), deep grooves are recognized in the interradial ossicles, protecting
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FIGURE 3 —(A) Modern deep-sea crinoid,  Annacrinus . Contrast with the drif...
in > PALAIOS
Published: 01 February 2004
FIGURE 3 —(A) Modern deep-sea crinoid, Annacrinus . Contrast with the driftwood dweller Seirocrinus (B–H), which enlarged its permanently splayed filter fan by increasing the number of arms and ramuli and by adequately distancing them with interaxillars. Along major arms, pinnules are larger
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FIGURE 4 —Supposed tow-net crinoids used various morphogenetic modes to enl...
in > PALAIOS
Published: 01 February 2004
FIGURE 4 —Supposed tow-net crinoids used various morphogenetic modes to enlarge their permanently open filter fans. In Traumatocrinus , now found attached to driftwood, arms branched endotomously like Seirocrinus (see Fig. 3 ); but the ramuli returned to alternating heterotomous branching
Journal Article
Published: 01 March 2001
Geological Magazine (2001) 138 (2): 228–229.
..., Indiana (Chapter 18), the locality which also prompted the concept of tiering among stalked crinoids. Jurassic localities include the Posidonienschiefer with Seirocrinus preserved attached to floating logs, and the Solnhofen Plattenkalk with Seirocrinus preserved attached to floating logs...
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Exceptionally preserved fossils of Ya Ha Tinda  Lagerstätte  (Alberta, Cana...
in > Geology
Published: 01 March 2017
of small teleost fish (PCS, within Toarcian Oceanic Anoxic Event [T-OAE] carbon isotope excursion [CIE]); note preservation of gills (arrow). C: Seirocrinus subangularis (crinoid) calyx collected by Russell Hall (RDM, late Pliensbachian). D: Vampyropod gladius with mantle muscle (white arrow) and ink sac
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Stratigraphical log for the Yorkshire section from  Kemp (2006 ), except fo...
Published: 01 September 2009
expansus (J. Sowerby); 38, Oolitica clevelandica (Tate); 39, Katosira blainvillei (Münster). Crinoids: 40, Pentacrinites dichotomus (McCoy); 41, Balanocrinus donovani Simms; 42, Isocrinus basaltiformis (Miller); 43, Seirocrinus subangularis (Miller). Belemnites: 44, Pseudohastites longiformis
Journal Article
Journal: Geology
Published: 01 March 2017
Geology (2017) 45 (3): 255–258.
... of small teleost fish (PCS, within Toarcian Oceanic Anoxic Event [T-OAE] carbon isotope excursion [CIE]); note preservation of gills (arrow). C: Seirocrinus subangularis (crinoid) calyx collected by Russell Hall (RDM, late Pliensbachian). D: Vampyropod gladius with mantle muscle (white arrow) and ink sac...
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Journal Article
Journal: PALAIOS
Published: 01 October 2000
PALAIOS (2000) 15 (5): 492–493.
... Coast of Southern England (Simms); the Posidonia Shale (Posidonienschiefer) of Southern Germany with its long-stemmed Seirocrinus attached to logs (Hess); Middle Jurassic deposits of Southern England (Simms) and Northern Switzerland (Hess); and finally the famous Upper Jurassic Solnhofen limestone...
Journal Article
Journal: PALAIOS
Published: 01 December 2001
PALAIOS (2001) 16 (6): 535–546.
... to Uintacrinus . Three pseudoplanktonic crinoids: Traumatocrinus (Triassic; Hagdorn, 1998 ), Pentacrinites (Jurassic; Simms, 1986 ) and Seirocrinus (Jurassic; Seilacher et al., 1968 ; Hall, 1991 ) are preserved with the upper surface disarticulated and the lower surface articulated. Although it might...
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Journal Article
Published: 01 November 2010
Journal of Paleontology (2010) 84 (6): 1031–1034.
... Jurassic Pentacrinites Blumenbach (1804) and Seirocrinus Gislén (1924) ( Simms, 1999 ; Hess, 1999a ). The author has not observed any myzostome infestation on the Middle Jurassic crinoids of Switzerland or France, including an assemblage of intact specimens of the comatulid Paracomatula helvetica...
FIGURES
Journal Article
Published: 09 June 2006
Canadian Journal of Earth Sciences (2006) 43 (5): 555–570.
...Fig. 2. Vertical bed covered with pentacrinitid crinoids (? Seirocrinus ; RTMP 2005.27.1-46), south shore of Williston Lake at Black Bear Ridge; associated with Lower Pliensbachian ammonite Acanthopleuroceras sp. cf. A. thomsoni and radiolarians. ...
FIGURES | View All (8)
Journal Article
Journal: Paleobiology
Published: 06 November 2015
Paleobiology (2016) 42 (1): 117–126.
... environment of the Posidonia Shale sea (Röhl et al. 2001 ), as well as the presence of invertebrates in the Fleins as large as the large ichthyosaurs (i.e., Seirocrinus colonies: Hauff [ 1921 ]) preservational biases such as size-sorting are also unlikely. Eurhinosaurus...
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Journal Article
Published: 01 November 2001
Journal of Paleontology (2001) 75 (6): 1161–1173.
Journal Article
Journal: Paleobiology
Published: 01 February 2008
Paleobiology (2008) 34 (1): 22–34.
... ) and pseudoplanktonic ( Seirocrinus subangularis on driftwood) lifestyles in some post-Paleozoic articulates (papers in Hess et al. 1999 ) may also represent alternative escape-from-benthic-predators scenarios. However, benthic lifestyles have also been proposed for at least some of these taxa (e.g., Milsom 1994...
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Journal Article
Published: 01 November 2005
Journal of Paleontology (2005) 79 (6): 1052–1071.
... at Rich Bou Kourazia (RBK), Jebel Mrakib (Mr), Lambidia (Lam), and Ouidane Chebbi (OCh) The magnificent colonies of the Jurassic crinoid Seirocrinus subangularis ( Miller, 1821 ) illustrated by Haude (1980) are the oldest known with the stem and crown still articulated with their host log...
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