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cidaroid

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Journal Article
Journal: Paleobiology
Published: 01 February 2008
Paleobiology (2008) 34 (1): 22–34.
...Tomasz K. Baumiller; Rich Mooi; Charles G. Messing Abstract Deep-sea submersible observations made in the Bahamas revealed interactions between the stalked crinoid Endoxocrinus parrae and the cidaroid sea urchin Calocidaris micans . The in situ observations include occurrence of cidaroids within...
FIGURES | View All (9)
Journal Article
Journal: PALAIOS
Published: 01 January 2009
PALAIOS (2009) 24 (1): 70–73.
...PRZEMYSŁAW GORZELAK; MARIUSZ A. SALAMON Abstract Although most investigations of crinoid-predator interactions have focused on nektonic vertebrates (fishes and sharks), slow-moving benthic animals such as cidaroid echinoids may also interact antagonistically with stalked crinoids. This was recently...
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Table 1.  Data on gut contents of the two <b>cidaroid</b> species examined,  Caloc...
Published: 01 February 2008
Table 1.  Data on gut contents of the two cidaroid species examined, Calocidaris micans and Histocidaris nuttingi
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Figure  5. Video evidence of interaction between a <b>cidaroid</b> and the isocrin...
Published: 01 February 2008
Figure 5. Video evidence of interaction between a cidaroid and the isocrinid Endoxocrinus parrae . In the frame, the white arrow points to a spine of the cidaroid, most of which is hidden behind the isocrinids in the foreground. The black arrow points to the distal end of the stalk
Journal Article
Published: 01 December 1997
Bulletin of Canadian Petroleum Geology (1997) 45 (4): 553–575.
... a locus for colonization by rocky substrate-preferring organisms such as terebratulid brachiopods, cidaroid echinoids and articulate crinoids. The Liard reef mounds accumulated during periods of comparably low siliciclastic input to the shoreface, likely during the later stages of a highstand systems...
Series: GSA Memoirs
Published: 01 January 1993
DOI: 10.1130/MEM182-p93
... Twelve species of fossil echinoid have been recognized from the Jamaican Cretaceous. Only two taxa, the cidaroid Phyllacanthus leoni (Lambert and Sánchez Roig) and the arbacioid Goniopygus supremus Hawkins, are known from the Cretaceous of both Jamaica and Cuba. They are also the two most...
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Figure  2. Still frames showing <b>cidaroids</b> and isocrinids. A,  Calocidaris m...
Published: 01 February 2008
Figure 2. Still frames showing cidaroids and isocrinids. A, Calocidaris micans near the isocrinid Neocrinus decorus . B, C. micans near the isocrinid Endoxocrinus parrae . C, Two individuals of C. micans with crinoid stalk and cirral segments; E. parrae in the background. Length of C
Journal Article
Journal: Geology
Published: 01 July 2017
Geology (2017) 45 (7): 607–610.
... °C at Shangsi. A species of cidaroid echinoid likely migrated to cooler deep waters to optimize development, suggesting that the success of this shallow-water clade is attributable to such refugia, when survival was most precarious after the EPME. The ecosystem was short lived, depending on low...
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Journal Article
Published: 18 April 2017
Journal of Paleontology (2017) 91 (4): 767–780.
... of stem group taxa from the Permian as well. Crenulate tubercles are reported from two taxa, and putative cidaroid style U-shaped teeth are present in the fauna. The presence of crenulate tubercles in the archaeocidarid indicates that crenulate tubercles were present in stem group echinoids, and thus...
Series: GSA Memoirs
Published: 01 January 1993
DOI: 10.1130/MEM182-p371
..., the echinoids of the Jamaican Paleocene, Oligocene, and Miocene are very poorly known. The Eocene fauna is dominated by oligopygoids, cassiduloids, and spatangoids, while the Neogene and Quaternary fauna is best known from cidaroids and clypeasteroids. Comparatively few regular echinoids are known from...
Journal Article
Published: 01 July 1968
Journal of Paleontology (1968) 42 (4): 1000–1006.
...Porter M. Kier Abstract Triassic echinoids are rare, particularly in North America where only two species have been described [from California], both of which are based on [cidaroid] fragments which cannot be generically identified. These fragments are herein reillustrated and redescribed. More...
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Figure  1 — 1 , Exterior of fragment of probable hemiasterid echinoid, USNM...
Published: 01 January 2010
Figure 1 — 1 , Exterior of fragment of probable hemiasterid echinoid, USNM 539666; 2 , cidaroid echinoid spine, USNM 539667. Scale bar represents 5 mm.
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Figure  4. Frequency distribution of segments of crinoid columnals and plur...
Published: 01 February 2008
Figure 4. Frequency distribution of segments of crinoid columnals and pluricolumnals in the sediment (black bars) and in the gut of cidaroids. Open bars, Calocidaris micans 1. Stippled bars, C. micans 2
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Figure  6. A sequence of 35-mm photos showing an interaction between a cida...
Published: 01 February 2008
Figure 6. A sequence of 35-mm photos showing an interaction between a cidaroid and the isocrinid Cenocrinus asterius , near Discovery Bay, Jamaica. A, Approach. B, Encounter. C, Escape. Length of spines ∼ 150 mm. Photographs courtesy of Research Submersibles, Ltd. and M.-J. Bodden
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Outcrop, lithology, and fossils from study site in China (2 cm scale bar in...
in > Geology
Published: 01 July 2017
: Cylindrichnus ? Cross section. E, F: Cidaroid echinoids from bed 28d. G: Claraia wangi from bed 29a; microconchids attached.
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Prionocidaris  sp. cf.  P. vendocinensis  (Agassiz &amp; Desor), BMNH EE 16...
Published: 21 September 2016
Fig. 1. Prionocidaris sp. cf. P. vendocinensis (Agassiz & Desor), BMNH EE 16020, a primary spine of a cidaroid echinoid. ( a ) Natural external mould. ( b ) Latex cast of same; the apparent curvature towards the top of the page is an artefact of the casting process. Specimens whitened
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FIGURE 2 —Examples of various specimens of crinoids and echinoids found in ...
in > PALAIOS
Published: 01 January 2009
of isocrinid columnal with signs of breakage and dissolution. H) Articular surface of millericrinid columnal with signs of breakage and dissolution. I) Fragment of cidaroid test. J) Fragment of cidaroid spine. Scale bars (A–H) = 1 mm; scale bars (I–J) = 10 mm. Specimen numbers for A–H are GIUS 8-3473/c1–c8
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Figure  2. Diversity of echinoid species with water depth off Sagami Bay, J...
Published: 01 January 2001
Figure 2. Diversity of echinoid species with water depth off Sagami Bay, Japan (data from Shigei 1986) . A, Total species diversity. B, Carnivores (cidaroids). C, Algivores and grazers. D, Epipsammic feeders (clypeasteroids). E, Selective deposit feeders (spatangoids). F, Changing proportion
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Figure  7. Patterns of breakage and abrasion of  Neocrinus decorus  columna...
Published: 01 February 2008
(three columnals long) extracted from the gut of C. micans showing two circular holes on a symplexial suture. Judging from their dimensions and shape, the damage was cause by the cidaroid's teeth. D, Nodal from sediment showing slight abrasion (lower left) but no evidence of bite marks. E, Internodal
Journal Article
Published: 01 January 2010
Journal of Paleontology (2010) 84 (1): 148.
...Figure 1 — 1 , Exterior of fragment of probable hemiasterid echinoid, USNM 539666; 2 , cidaroid echinoid spine, USNM 539667. Scale bar represents 5 mm. ...
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