1-18 OF 18 RESULTS FOR

Olini Group

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
Image
FIGURE 6 —Dinoflagellate content of the <b>Olini</b> <b>Group</b> in the Coyaima section ...
in > PALAIOS
Published: 01 October 2003
FIGURE 6 —Dinoflagellate content of the Olini Group in the Coyaima section (redrawn from Jaramillo and Yepes, 1994 ). Note that the maximum diversity occurs in the Nivel de Lutitas Formation where the Gonyaulacysta group is dominant and the gonyaulacoid/peridinoid ratio (G/P spp.) is maximum
Series: GCSSEPM
Published: 01 January 2014
DOI: 10.5724/gcs.14.33.0148
EISBN: 978-0-9836097-9-0
... and laterally extensive Type II(S)/III shales and carbonates of the Lower Cretaceous Basal Carbonates ( sensu lato ) and Upper Cretaceous Villeta/Gachetá/La Luna/Navay formations, the latter group being broadly coeval with the Eagle Ford Formation of North America. Unlike the Eagle Ford, however, the Colombian...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1990
AAPG Bulletin (1990) 74 (10B): 336–355.
...-1, Mata Negra-1, Municion Oeste-1, and Gaviota Norte-6), Colombia (Cohembi-1, Mansoya-1, Mecaya-1, Toroyaco-1, Camoa-1, Chaparrito Norte-1, Los Toros-1, Sirenas-1, Bucaro-1, Guacamayo-1, Valdivia-1, E1 Deseo-1, Doña María-1, Pacande-1, Olini-1, and Chenche-1), Ecuador (Danta-1, Lobo-1, Iro-1, Sunka...
FIGURES | View All (4)
Image
Reflected light photomicrographs of Late Cretaceous species similar to  Gav...
Published: 01 October 2017
. 2 Gavelinella petita (Carsey) from the Grayson Formation (Lower Cenomanian), Bell County, Texas. (a) spiral view, (b) umbilical view, (c) apertural view. 3 Gavelinella redmondi (Petters) USNM CC 64579 holotype from the Olini Group (Coniacian), Nariño, Columbia. a. spiral view, b. umbilical view
Journal Article
Published: 01 October 2017
Journal of Foraminiferal Research (2017) 47 (4): 358–365.
.... 2 Gavelinella petita (Carsey) from the Grayson Formation (Lower Cenomanian), Bell County, Texas. (a) spiral view, (b) umbilical view, (c) apertural view. 3 Gavelinella redmondi (Petters) USNM CC 64579 holotype from the Olini Group (Coniacian), Nariño, Columbia. a. spiral view, b. umbilical view...
FIGURES | View All (7)
Journal Article
Journal: Paleobiology
Published: 01 November 2018
Paleobiology (2018) 44 (4): 638–659.
... developmental understanding of Phacopina, a diverse group of phacopid trilobites, and also allows us to study the evolution of their specializations in exoskeletal molting behavior. Adult phacopines, unlike most other trilobites, had fused facial sutures. This means that rather than molting through the sutural...
FIGURES | View All (10)
Journal Article
Journal: Palynology
Published: 01 January 2001
Palynology (2001) 25 (1): 217–249.
... reported in the literature. Spiniferites–Achomosphaera Group and peridinioid cysts dominate most of the dinoflagellate cyst assemblage in both sections. The peridinioid assemblage reported here is assigned to the tropical to subtropical Malloy suite of Lentin and Williams (1980) . The Río Loro section...
FIGURES | View All (15)
Journal Article
Journal: Palynology
Published: 01 June 2011
Palynology (2011) 35 (1): 46–84.
... tool because pollen is the most abundant fossil group. In this study we analyze pollen information from 70 sections (624,744 palynomorph grains from 6707 samples) to construct a biostratigraphic zonation for the Llanos Foothills and Llanos basins. Using both graphic correlation and constrained...
FIGURES | View All (20)
Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M79877C38
EISBN: 9781629810546
... to northeast. Observation of the dip angle of the Santuario fault was hindered by the lack of topographic relief along its trace in the plateau. This fault could be mapped only by using truncation of stratigraphic units (mostly Oliní Group) against characteristic calcareous shale and micrite of the upper part...
FIGURES | View All (17)
Journal Article
Journal: PALAIOS
Published: 01 October 2003
PALAIOS (2003) 18 (4-5): 305–320.
...FIGURE 6 —Dinoflagellate content of the Olini Group in the Coyaima section (redrawn from Jaramillo and Yepes, 1994 ). Note that the maximum diversity occurs in the Nivel de Lutitas Formation where the Gonyaulacysta group is dominant and the gonyaulacoid/peridinoid ratio (G/P spp.) is maximum ...
FIGURES | View All (10)
Journal Article
Journal: PALAIOS
Published: 01 October 2003
PALAIOS (2003) 18 (4-5): 301–304.
... and II kerogen in most of the Maracaibo basin and the Venezuelan Andes ( Erlich et al., 1999a ), and predominantly Type II kerogen in the Perija range ( Gallango et al., 2002 ). Laterally equivalent units, including the Hondita, Lomagorda, and lower part of the Olini Group in the Upper Magdalena Valley...
Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M79877C1
EISBN: 9781629810546
... ( Figure 2 ). Generally speaking, bedded cherts were deposited in distal depositional environments during the Santonian and were lateral facies equivalents of shallow-water marine sediments in proximal areas ( Barrio and Coffield, 1992 ). Distal cherts of the Oliní Group were deposited in the Upper...
FIGURES | View All (31)
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1997
AAPG Bulletin (1997) 81 (4): 556–576.
..., 1994 ). This unit was redefined by Patarroyo (1993) and Vergara Streinesberger (1994) , and renamed the Hondita and Lomagorda formations after de Porta (1965) . These formations are overlain by two chert units (Olini Group), the regressive sandstones of the La Tabla Formation, and the paralic...
FIGURES | View All (14)
Journal Article
Journal: PALAIOS
Published: 01 February 2005
PALAIOS (2005) 20 (1): 27–36.
.... The mudstones and calcareous mudstones yield numerous trilobites, including Mucronaspis mucronata (Brongniart), M. olini (Temple), Leonaspis olini (Troedsson), Staurocephalus clavifrons (Angelin), Phillipsinella parabola (Barrande), and ‘ Proetus ’ ( Kielan, 1959 ), and taxa characteristic...
FIGURES | View All (7)
Journal Article
Published: 01 June 1998
Journal of the Geological Society (1998) 155 (3): 447–452.
... specimens of isolated chitinozoans, visible on bed- ding planes, together with chains, aggregated masses and structures comparable with Kozlowski s cocoons. These dis- coveries allow new constraints to be placed on the systematic position of this group of microfossils because few of the faunal groups...
Journal Article
Journal: Palynology
Published: 01 June 2012
Palynology (2012) 36 (Suppl_1): 112–133.
... in transgressive systems tracts. The environmental preferences of certain groups of marine palynomorphs also provide valuable information on sea-level changes (e.g. Li and Habib 1996 ; Schioler et al. 1997 ; Warny and Wrenn 2002 ; Warny et al. 2003 ). In the present study, new palynological data from two...
FIGURES | View All (15)
Journal Article
Published: 01 May 2009
Journal of Micropalaeontology (2009) 28 (1): 53–66.
... Siltstone Member comprise the Cedarberg Formation of the Table Mountain Group, which crops out in the Cape Province of South Africa. Importantly, both members of the Cedarberg Formation contain the only dateable fossils known in the whole Table Mountain Group, a sequence of sediments of latest Cambrian...
FIGURES | View All (8)
Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M79877C32
EISBN: 9781629810546
.... Units represented by chert-dominated facies are the Oliní Group of the Upper Magdalena Valley of Colombia, the La Luna Formation of the Middle Magdalena Valley, the Táchira Chert, and the cherts of the upper La Luna Formation of western Venezuela. Chert-dominated units have been recognized in northern...
FIGURES | View All (26)