Results 71 to 80 of about 308 (178)

The Liexi fauna: a new Lagerstätte from the Lower Ordovician of South China. [PDF]

Proc Biol Sci, 2022
Fang X, Mao Y, Liu Q, Yuan W, Chen Z, Wu R, Li L, Zhang Y, Ma J, Wang W, Zhan R, Peng S, Zhang Y, Huang D.   +13 more
europepmc   +1 more source

Double-helical macrostructure aids the passive movement of extinctive graptolites (Dicellograptus) revealed by CFD simulation

Swiss Journal of Palaeontology
Understanding how marine organisms move in the water column is critical for comprehending their palaeoecology and palaeobiogeography. However, interpreting the locomotion of extinct invertebrates can be problematic and difficult because of the lack of ...
Shijia Gao, Jingqiang Tan, Wenhui Wang
doaj   +1 more source

L'ontogenese des graptolites

Bulletin de la Société Géologique de France, 1959
Abstract Traces the ontogenetic development of graptolites, reporting details of the various growth stages of a graptolite colony.
openaire   +1 more source

Pristiograptus (Graptoloidea) from the perneri - lundgreni biozones (Silurian) of Lithuania

Carnets de Géologie, 2003
Two new forms of Pristiograptus dubius, here designated as varieties "A" and "B", are described and figured. Both were found in core samples representing the perneri through lundgreni biozones of the Wenlock epoch.
Radzevičius Sigitas
doaj  

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

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

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

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