Results 101 to 110 of about 1,858 (206)

MIDDLE-UPPER ORDOVICIAN CONODONT BIOSTRATIGRAPHY OF THE EASTERN PRECORDILLERA, SAN JUAN, ARGENTINA

Publicación Electrónica de la Asociación Paleontológica Argentina
The La Cantera Formation is a siliciclastic unit with restricted distribution that crops out at the eastern edge of the Villicum range (Eastern Precordillera), province of San Juan, Argentina.
Susana Heredia, Ana Mestre, Mercedes Gallardo, Florencia Moreno, María José Gómez, Guillermo Aceñolaza   +5 more
doaj   +1 more source

The Graptolites of the Glenogle Formation

The Canadian field-naturalist, 1926
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Whiterockian (middle Ordovician) graptolites of the Lower Member of the Vinini Formation, Roberts Mountains, Eureka County, Nevada

, 2015
The Ordovician strata of the Lower Member of the Vinini Formation comprise a sequence of greenstone, sandstone, shale, and siltstone representing the prograding and retrograding of submarine fans along the continental margin.
Schuster, Erin B.
core  

Graptolite Taxonomy and Classification

Bulletin of the Geological Society of Denmark, 1987
Graptolithina comprises chiefly six orders. Among them Graptoloidea and a part of Dendroidea known as Graptodendroids are planktonic in mode of life. Graptoloidea consists of three suborders namely Axono­lipa, Axonocrypta and Axonophora. The families Dendrograptidae-Anisograptidae-Tetragraptidae and Didymograptidae-Isograptidae-Cardiograptidae ...
openaire   +1 more source

Graptolites from the Lower and Upper Visby formations of NW Gotland

, 2006
Graptolites are uncommon in the Lower Visby Formation. Specimens derived from conodont residues are predominantly members of the long ranging genus Retiolites, with single specimens recorded of Paraplectograptus and Monograptus priodon.
Jeppsson, Lennart, Lennart Jeppsson, David K. Loydell, Jeppsson, L., Loydell, David   +4 more
core   +1 more source

Advanced Cambrian hydroid fossils (Cnidaria: Hydrozoa) extend the medusozoan evolutionary history. [PDF]

Proc Biol Sci, 2021
Song X, Ruthensteiner B, Lyu M, Liu X, Wang J, Han J.   +5 more
europepmc   +1 more source

New fossil assemblages from the Early Ordovician Fezouata Biota. [PDF]

Sci Rep, 2022
Saleh F, Vaucher R, Vidal M, Hariri KE, Laibl L, Daley AC, Gutiérrez-Marco JC, Candela Y, Harper DAT, Ortega-Hernández J, Ma X, Rida A, Vizcaïno D, Lefebvre B.   +13 more
europepmc   +1 more source

GRAPTOLITES OF NORTH AMERICA

, 1947
Mode of access: Internet.
openaire   +2 more sources

A long-term record of early to mid-Paleozoic marine redox change. [PDF]

Sci Adv, 2021
Sperling EA, Melchin MJ, Fraser T, Stockey RG, Farrell UC, Bhajan L, Brunoir TN, Cole DB, Gill BC, Lenz A, Loydell DK, Malinowski J, Miller AJ, Plaza-Torres S, Bock B, Rooney AD, Tecklenburg SA, Vogel JM, Planavsky NJ, Strauss JV.   +19 more
europepmc   +1 more source

Characteristics of hydrocarbon-generating organisms and influencing factors of source rock development: A case study of Wulalike Formation, Ordos Basin

Youqicang pingjia yu kaifa
The Wulalike Formation developed in the southwest margin of the Ordos Basin is an important shale gas exploration and development horizon in northern China, characterized by general gas occurrence and local enrichment.
ZHANG YI, WAN JUNYU, LIU ZIYI, ZHU JIANHUI, LI CHUNTANG, ZHANG WEI, WANG PING   +6 more
doaj