1-20 OF 179 RESULTS FOR

Buchia

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
Published: 01 March 2008
Journal of Paleontology (2008) 82 (2): 391–397.
...Melissa Grey; James W. Haggart; Paul L. Smith Abstract Critical reinvestigation of the bivalve Buchia cf. blanfordiana Jeletzky, 1965 from the Upper Jurassic of western British Columbia indicates that it is morphologically distinct from B. blanfordiana Stoliczka, 1866 of the Indo-Pacific region. We...
FIGURES | View All (7)
Journal Article
Published: 01 July 1993
Geological Magazine (1993) 130 (4): 533–542.
Image
Key  <span class="search-highlight">Buchia</span>  and  Inoceramus  species in the Valanginian and Hauterivian ro...
Published: 14 December 2022
Fig. 3. Key Buchia and Inoceramus species in the Valanginian and Hauterivian rocks of western and southern Alaska. Mature Buchia crassicollis  specimens range from about 2 to 5 cm in width, and Inoceramus prisms are up to 8 cm long and 6 mm thick (locality 3, Fig. 1 ).
Image
Multi-taxon chart of Arctic Canada ammonites and  <span class="search-highlight">Buchia</span>  assemblages, fora...
Published: 01 September 2020
Figure 5. Multi-taxon chart of Arctic Canada ammonites and Buchia assemblages, forams, dinoflagellate cysts and terrestrial palynomoph cluster assemblages from this study, with palynological “zones” from other high-latitude regions for comparison (colour online).
Image
Explanation or Plate 2  <span class="search-highlight">Buchia</span> “sublaevis”  from northern Alaska   ( See le...
Published: 01 September 1964
Plate 2 Explanation or Plate 2 Buchia “sublaevis” from northern Alaska ( See legend on facing page ) Figs. 1-7, 21. Deformed specimens from coquinoid limestone of the Tiglukpuk Formation; figures 9-14 from sheared graywacke and shale of the type Tiglukpuk; figures 8, 15-20 from rocks mapped
Journal Article
Published: 01 July 1990
Canadian Journal of Earth Sciences (1990) 27 (7): 988–998.
...S. E. MacLeod; L. V. Hills Abstract The upper Jackson unit in the northern Bowser Basin includes marine strata of Late Jurassic (middle Oxfordian to Tithonian) age on the basis of the presence of Vaugonia doroschini (Eichwald), Buchia concentrica (Sowerby), Buchia mosquensis (Von Buch), Buchia...
Image
Geologic map and stratigraphic columns for the shallow shelf Ungalikthluk o...
Published: 14 December 2022
Fig. 5. Geologic map and stratigraphic columns for the shallow shelf Ungalikthluk outcrop belt and the basinal Buchia Ridge outcrop belt (shaded gray; adapted from Hoare et al. 1975 ). The Buchia Ridge section may be up to 5000 m thick ( Hoare and Coonrad 1983 ). Other units are Tertiary
Series: GSA Special Papers
Published: 28 December 2018
DOI: 10.1130/2018.2540(15)
EISBN: 9780813795409
... clastic rocks are almost barren of fossils, but there are ~13 localities with Late Jurassic and Early Cretaceous Buchia specimens, ~3 with mid-Cretaceous ammonites or Inoceramus , plus several with mid-Cretaceous youngest detrital-zircon populations. These ages had suggested that sediments may not have...
FIGURES | View All (9)
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1964
AAPG Bulletin (1964) 48 (9): 1462–1474.
...Plate 2 Explanation or Plate 2 Buchia “sublaevis” from northern Alaska ( See legend on facing page ) Figs. 1-7, 21. Deformed specimens from coquinoid limestone of the Tiglukpuk Formation; figures 9-14 from sheared graywacke and shale of the type Tiglukpuk; figures 8, 15-20 from rocks mapped...
FIGURES | View All (9)
Image
All illustrations are scanning electron micrographs of Upper Jurassic and L...
Published: 01 January 2004
. Scale in upper right = number of μm cited for each illustration. 
 1 Complexapora kozuri Hull. Calcified radiolaria extracted from limestone nodule using new method. Buchia piochii Zone Grindstone Creek, Glenn County, California. Scale = 167 μm. 
 2 Pantanellium sp. Calcified radiolaria extracted
Series: GSA Special Papers
Published: 01 July 2008
DOI: 10.1130/2008.2438(06)
... with those of formations in east-central and west-central Mexico. The Mexican radiolarian faunas are chronostratigraphically calibrated by co-occurring ammonites and Buchia. Abundant Mexican biostratigraphic and chronostratigraphic data (ammonites, Radiolaria, and Buchia) constrain the composite radiolarian...
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1974
AAPG Bulletin (1974) 58 (5): 868–870.
...Robert L. Detterman; David L. Jones Abstract Upper Jurassic and Upper Cretaceous fossiliferous marine strata are present on the south flank of Augustine Volcano. The Late Jurassic rocks contain Buchia concentrica as well as the first reported Buchia piochii (Gabb) from the Cook Inlet area...
FIGURES
Series: SEPM Special Publication
Published: 01 January 1974
DOI: 10.2110/pec.74.19.0345
EISBN: 9781565761490
... units, the melanges contain relatively abundant fossils, mainly Buchia, radiolarians, and dinoflagellates. Significantly, all of these fossils are of Tithonian to Valanginian age. We suggest, on the basis of similarity of lithology and fossil content, that the matrix of the melanges represents...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1968
AAPG Bulletin (1968) 52 (3): 567.
... units in the De Long Mountains are informally designated as follow: Foothills unit (northernmost and structurally lowest):—(a) Permian(?), Triassic, and Jurassic chert, shale, and limestone, (b) Early Cretaceous (Valanginian) shale with Buchia -bearing coquinoid limestone, and (c) late Early Cretaceous...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1967
GSA Bulletin (1967) 78 (2): 299–304.
... with argillite, graywacke, and slate, which were found to contain marine fossils at three localities. The fossils include Buchia piochii, belemnoids, and a few unidentifiable forms. The presence of Buchia piochii is indicative of a late Jurassic (Portlandian) age. Therefore, the interbedded sedimentary rocks...
Image
—Sketch map of Tiglukpuk Creek showing type locality of Tiglukpuk Formation...
Published: 01 September 1964
Fig. 2. —Sketch map of Tiglukpuk Creek showing type locality of Tiglukpuk Formation and Buchia localities.
Journal Article
Journal: Geology
Published: 01 December 2019
Geology (2019) 47 (12): e493.
...) and further used for inter-regional correlation by Zeiss (1983), Hoedemaeker (1987), and others, clearly indicate a Tithonian (Late Jurassic) age for the basal GVG. This succession is relatively poor in ammonites, but zonal subdivision is enabled on the basis of the succession of Buchia bivalves (Jones et al...
Journal Article
Journal: Geology
Published: 01 December 2019
Geology (2019) 47 (12): e494.
... Group (GVG), California, USA, is diachronous and largely younger than previously mapped. The original age determinations for the oldest strata in the GVG are based on the zonal succession of Buchia bivalves (B. piochii and B. Aff. B. okensis), which indicate a Tithonian depositional age for the basal...
Image
Early Cretaceous index fossils of the Traill Ø region. All specimens were f...
Published: 01 June 2017
Figure 8. Early Cretaceous index fossils of the Traill Ø region. All specimens were formerly part of the CASP (University of Cambridge) collection, transferred to the Geological Museum, Copenhagen (MGUH). (A, B) Buchia keyserlingi (Lahusen), Buchia Beds, Valanginian, CASP locality P.1772
Image
—Schematic columnar sections showing previous stratigraphic concepts of  Bu...
Published: 01 September 1964
Fig. 3. —Schematic columnar sections showing previous stratigraphic concepts of Buchia -bearing rocks on Tiglukpuk Creek contrasted with proposals based on new data given in this report.