1-20 OF 51 RESULTS FOR

Rafinesquina alternata

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Journal: PALAIOS
Published: 01 September 2009
PALAIOS (2009) 24 (9): 578–590.
... by Sardeson (1929) , who showed “ Rafinesquina ” minnesotaensis (probably Oepikina minnesotaensis ; see Pope, 1982 ) in a similar escape position to that seen in Sowerbyella . Evidence of movement also comes from traces associated with the widespread Cincinnatian brachiopod Rafinesquina alternata...
FIGURES | View All (13)
Journal Article
Journal: Paleobiology
Published: 01 October 1982
Paleobiology (1982) 8 (4): 389–401.
Journal Article
Published: 01 July 1975
Journal of Paleontology (1975) 49 (4): 607–618.
Journal Article
Journal: PALAIOS
Published: 01 August 2004
PALAIOS (2004) 19 (4): 332–348.
.... If plectambonitoids could have moved by clapping their valves, then the same may have been true of strophomenoids, such as Rafinesquina alternata . The ability to move sediment and adjust position explains how strophomenids could live in a convex-up position or even, if partially buried, in more vertical positions...
FIGURES | View All (16)
Journal Article
Published: 01 May 1980
Canadian Journal of Earth Sciences (1980) 17 (5): 674–679.
..., and gastropods, suggests a smothered life assemblage from soft bottom shallow marine platform conditions. The edrioasteroids settled on overturned shells of Rafinesquina alternata and on local hard surfaces provided by previously formed internal moulds of molluscs. Les édrioastéroïdes Isorophusella...
Image
 Figure 1. Distributions of strophomenide outline length (SOL) for four Liberty species. Species distributions, from left to right, represent Eochonetes (Thaerodonta) clarksvillensis, Leptaena richmondensis, Strophomena planumbona, and Rafinesquina alternata, respectively (brachiopods not to scale). SOL is measured as arc length of commissure (anterior margin). Configuration of SOL on brachiopod is shown for Eochonetes (Thaerodonta) clarksvillensis
Published: 01 January 2002
Figure 1. Distributions of strophomenide outline length (SOL) for four Liberty species. Species distributions, from left to right, represent Eochonetes (Thaerodonta) clarksvillensis , Leptaena richmondensis , Strophomena planumbona , and Rafinesquina alternata , respectively (brachiopods
Image
Figure2—Socket plates and pads. Detail of transverse serial sections of the dorsal valve showing cardinal process and socket. All scale bars are 1 mm. 1, Nasutimena fluctuosa, GSC 113842. 2, Strophomena planumbona, GSC 113845. 3, Coolinia gamachiana, GSC 113858. 4, Rafinesquina alternata, GSC 113854. 5, Leptaena quadrilatera, GSC 113866. 6, Brachyprion (Eomegastrophia) philomela, GSC 113873
Published: 01 February 2004
Figure 2 —Socket plates and pads. Detail of transverse serial sections of the dorsal valve showing cardinal process and socket. All scale bars are 1 mm. 1 , Nasutimena fluctuosa , GSC 113842. 2 , Strophomena planumbona , GSC 113845. 3 , Coolinia gamachiana , GSC 113858. 4 , Rafinesquina
Image
Socket plates and pads. Detail of transverse serial sections of the dorsal valve showing cardinal process and socket. All scale bars are 1 mm. (A) Gunnarella? fluctuosa, GSC 113842. (B) Strophomena planumbona, GSC 113845. (C) Coolinia gamachiana, GSC 113858. (D) Rafinesquina alternata, GSC 113854. (E) Leptaena quadrilatera, GSC 113866. (F) Brachyprion (Eomegastrophia) philomela, GSC 113873.
Published: 26 January 2001
Fig. 5. Socket plates and pads. Detail of transverse serial sections of the dorsal valve showing cardinal process and socket. All scale bars are 1 mm. (A)  Gunnarella? fluctuosa , GSC 113842. (B)  Strophomena planumbona , GSC 113845. (C)  Coolinia gamachiana , GSC 113858. (D)  Rafinesquina
Image
Exemplar species of focal genera. All specimens are housed in the Ohio University Invertebrate Paleontology Collections (OUIP). Scale bar, in A–K, 1 cm; in L, 0.2 cm. A, Cuffeyella arachnoidea encrusting on Rafinesquina alternata, dorsal valve (1298). B, Cuffeyella arachnoidea, magnified 2.5×. C, Flexicalymene meeki (1296). D, Isotelus gigas, pygidium and partial thorax (1299). E, Ambonychia robusta (1294). F, Grewingkia canadensis (1295). G, Cyclonema bilix (33). H. Aspidopora newberry, complete encrusting zooaria (89). I, Parvohallopora ramosa, partial zooaria (1297). J, Cincinnaticrinus varibrachialis, stem fragments (106). K, Ectenocrinus simplex, stem fragments (10). L, Xenocrinus baeri, stem ossicle (1744).
Published: 25 October 2013
Figure 3.  Exemplar species of focal genera. All specimens are housed in the Ohio University Invertebrate Paleontology Collections (OUIP). Scale bar, in A–K, 1 cm; in L, 0.2 cm. A, Cuffeyella arachnoidea encrusting on Rafinesquina alternata, dorsal valve (1298). B, Cuffeyella arachnoidea
Journal Article
Published: 01 September 2013
Journal of Paleontology (2013) 87 (5): 818–825.
..., 1972 ; Alexander, 1975 ). The tendency of dead strophomenid shells to passively reorient was supported by experimental studies by Alexander (1975 ) and Savarese (1994 ). Alexander (1975 ) placed weighted plaster models of Rafinesquina alternata in a flume with a fine sand bottom. Five shape...
FIGURES | View All (6)
Journal Article
Journal: AAPG Bulletin
Published: 01 December 1933
AAPG Bulletin (1933) 17 (12): 1405–1435.
... it 2 30 100 Fine-grained light gray limestone. Some beds porous from weathering. Beds even and 2–4 inches thick. Plectambonites sericeus (Sowerby), Rafinesquina alternata (Emmons), Rhynchotrema increbescens Hall 3 125 225 Fine-grained gray limestone for most part but more crystalline...
FIGURES
Journal Article
Journal: Geology
Published: 01 January 2002
Geology (2002) 30 (1): 15–18.
...Figure 1. Distributions of strophomenide outline length (SOL) for four Liberty species. Species distributions, from left to right, represent Eochonetes (Thaerodonta) clarksvillensis , Leptaena richmondensis , Strophomena planumbona , and Rafinesquina alternata , respectively (brachiopods...
FIGURES
Journal Article
Published: 01 February 2004
Journal of Paleontology (2004) 78 (2): 275–286.
...Figure 2 —Socket plates and pads. Detail of transverse serial sections of the dorsal valve showing cardinal process and socket. All scale bars are 1 mm. 1 , Nasutimena fluctuosa , GSC 113842. 2 , Strophomena planumbona , GSC 113845. 3 , Coolinia gamachiana , GSC 113858. 4 , Rafinesquina...
FIGURES | View All (8)
Image
FIGURE 8—Brachiopods from gray calcareous mudstone facies of the Collingwood. (A) Onniella and Lingula; scale bar = 1 cm. (B) Rafinesquina sp. cf. Alternata (scale bar = 4 cm). Both specimens are from Craigleith foreshore at Craigleith Provincial Park
Published: 01 December 2006
FIGURE 8 —Brachiopods from gray calcareous mudstone facies of the Collingwood. (A) Onniella and Lingula ; scale bar = 1 cm. (B) Rafinesquina sp. cf. Alternata (scale bar = 4 cm). Both specimens are from Craigleith foreshore at Craigleith Provincial Park
Journal Article
Journal: AAPG Bulletin
Published: 01 August 1923
AAPG Bulletin (1923) 7 (5): 558–564.
... ulrichi r U Bucania hall Crania sp. new Lophospira perangulata r Crania granulosa U Eccyliopterus vagrans L Pholidops trentonensis r U Eccyliomphalus proclivis r L Rafinesquina alternata Pterotheca attenuata Rafinesquina minnesotensis r Orthoceras lesueuri U...
FIGURES
Journal Article
Published: 01 March 1985
Jour. Geol. Soc. India (1985) 26 (3): 191–198.
... <: paf~I~.nl I,~ ollondleo ~ ~, of £.d~ £ ponuloetormlS ~hsphaer~ sP, LOII~ 'p. Siau rocephal,les sp Anlsocerosl'e~ .p Eu n'c"es s p ~sp. Kellnero'es sp ~.p, Poroqlyclfl'e p Olopotr~ 5p ' . .-L. . Grey '0 pIn kIln Col c orlou, sand.tont and Quartz;' I WIt h bands at Llrnnlane RAFINESQUINA ALTERNATA CE NOZONE RQfll'lU9UinQ ·~o. Satfordlo ,p I Monotrypa ,p, Strophoml no ~p Figure 2, Not known and melanosclerites have also been found. A check list of the ~flora is given later. Phytostratigraphy Only one phytostratigraphic unit, i.e., Co/as/ylis zone can provisionally be recog- nized within the formation. Age Faunal and floral evidences clearly indicate an Upper Ordovician-Lower Silurian (Caradocian to Llandoverian) age to the Yong Limestone. Chiti nozo a-Sc 01 ecodonts assembIage A poorly preserved palynological assemblage comprising of chitinozoa and 8CO- lecodonts has been recorded from the Yong Limestone horizon of Kurnaun Tethys Himalaya (Sinha, 1982). The assemblage 'is neither rich in quantity nor in species. ASHOK K. KHANNA AND OTHERS 195 differentiation. Chitinozoa are represented by 10 species assignable to 4 genera and scolecodonts by 9 taxa. Besides, a solitary specimen of acritarch genus, Baltisphaeridium has also been encountered in the assemblage. Chitinozoa and scolecodonts are black and opaque. The state of palynofossils varies even "Yithin one species and from sample to sample. Transparent forms have not been recorded at all. No mutual relationship between the abundance of chitinozoa, scolecodonts and acritarchs within the same sample or group of samples has been observed. Out of 9 samples collected, 4 have yielded palynofossils. A check list of the palynomorphs is given below. Taxa listed here are in alphabetical order without attempting to accommodate them in any of the taxonomic system presently in existence (Plate 1). CHITINOZOA Form Genus Form Genus Form Genus Form Genus Conochitina C. brevis C. brevisconica C. cf. dactylis C. cf. latifrons C, parviventer C. proboscifera Cyathoclzitina C. campanulaeformis Eisenackitina E. oelandica Lagenochitina L. brevicollis L. e/egans L. sp. SCOLECODONTS Form Genus Anisocerasites Arabellites Arites Diopafraites Eunicites Kettnerites Oenonites Paraglycerites Staurocephalites STRATIGRAPHIC SIGNIFICANCE OF PALYNOMORPHS Chitinozoa and scolecodonts constitute the palynological assemblage of Yong Limestone. Chitinozoa species are more reliable stratigraphic indices, and hence have been used as palynological datum markers in the determination of age of the Yong Limestone and delineation of Ordo-Silurian boundary in Kumaun Tethys Himalaya. Global repartition of chitinozoan taxa encountered in the present palyno-assemblage indicates that out of ten chitinozoan species 6 range from Ordovician to Silurian (Fig. 3) thereby indicating Ordo-Silurian affinity of the palynomorphs. The stratigraphic horizon (Shia)a Formation) lying below Yong Limestone 3 196 YONG LIMESTONE OF TETHYS HIMALAYA STRATIGRAPHIC RANGE CONOCHITINA PARVIVEN TER -~ ~~ -~Ui.ACKITINA OE LANDICA LAGENOCHITINA BREVICOLUS CONOCHI TINA DACTYLI~ ~ CONOCHlTINA PR080SCI FE RA e ONOCH ITINA LATIFRONS CYATHOCHITINA CAM PANULAEFORM IS r-- lAGE NOCHlTI NA EL EGA NS CONQCHITINA BREVIS CONDe HIT INA BRE VIS CON leA z z zz oCt z g .zz 5:C2z z >S 0 oCt ~ «W Q: r ~ ~ Z It: t!l > 4J Rafinesquina alternata with other metazoan fossils and is of definite upper Ordovician age. The Yong Limestone mainly contains...
Journal Article
Journal: PALAIOS
Published: 01 December 1988
PALAIOS (1988) 3 (6): 588–597.
... with the Platystrophia ponderosa, Rafinesquina alternata, and Zygospira greater thickness of the pedicle valve and the lack of brachial modesta. Bryozoans and molluscs are also common (Table 1). valve-dominated assemblages, suggests that skewed valve ratios Trace fossils occur mainly in rather uncommon calcitic silt...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1951
AAPG Bulletin (1951) 35 (9): 2041–2075.
...   Localities   1 2 3 4 Higher limestones - - - -   Hesperorlhis tricenaria (Conrad) - - p -   Pionodema? sp a - p -   Rafinesquina alternata (Emmons) a - c -   Zygospira recurnrostris (Hall) a - p -   Eomonorachus intermedins (Walcott) p...
FIGURES | View All (16)
Journal Article
Journal: PALAIOS
Published: 01 June 2013
PALAIOS (2013) 28 (6): 359–372.
.... Dewing K. Gaynor M.R. 2009 , Escape traces associated with Rafinesquina alternata , an Upper Ordovician strophomenid brachiopod from the Cincinnati Arch region : PALAIOS , v. 24 , p. 578 – 590...
FIGURES | View All (8)
Journal Article
Journal: PALAIOS
Published: 01 July 2007
PALAIOS (2007) 22 (4): 392–407.
... for their constructive comments. This is Paleobiology Database Publication 49. All faunal counts and collection data are stored in the Paleobiology Database (paleodb.org). References Alexander , R.R. , 1975 , Phenotypic lability of the brachiopod Rafinesquina alternata (Ordovician) and its correlation...
FIGURES | View All (11)