Results 51 to 60 of about 900 (192)

†Trilobita

Tallinn University of Technology
  +15 more sources

Biostratigraphic significance of the latest Cambrian-earliest Ordovician agnostoid trilobites from Northwestern Argentina

Geologica Acta, 2003
The biostratigraphic significance of the latest Cambrian-earliest Ordovician trilobite agnostoids from northwestern Argentina is summarized. A characterization of the faunas recognized below and above the Cambrian-Ordovician boundary is presented on the ...
M.F. Tortello
doaj   +1 more source

Ordovician paleobiogeography of the Suborder Cheirurina (Trilobita)

Palaeogeography, Palaeoclimatology, Palaeoecology
Francesc Pérez-Peris, Jonathan M Adrain, Allison C Daley   +2 more
exaly   +2 more sources

Notes on the Lines of Descent of Lower Winged Insects

, 1920
Psyche: A Journal of Entomology, Volume 27, Issue 5, Page 116-127, 1920.
G. C. Crampton
wiley   +1 more source

Una especie nueva del género Griffithides Portlock (Arthropoda: Trilobita) del Paleozoico superior de Oaxaca

Revista Mexicana de Ciencias Geológicas, 2019
Se describe una especie nueva del Género Griffthides Portlock, 1843, de la Familia Proetidae, de la Formación Ixtaltepec (Pensilvánico), de la región de Nochixtlán, Oaxaca en la parte centromeridional de México y se discute su situación taxonómica ...
Alejandro Morón-Ríos, María del Carmen Perrilliat   +1 more
doaj  

The Family Olenidae (Trilobita, Arthropoda): A synopsis of its taxonomic composition, stratigraphic and paleogeographic distribution

Publicación Electrónica de la Asociación Paleontológica Argentina
This paper provides a list of all named species in the family Olenidae, along with their geographic and stratigraphic records. It also discusses each of the valid genera in the family and describes the composition of the entire group and its subfamilies
Daniela Soledad Monti
doaj   +1 more source

Fósseis do Devoniano de Goiás, Brasil (Sub-bacia Alto Garças, Bacia do Paraná)

Papéis Avulsos de Zoologia
RESUMO O registro fóssil do Devoniano do estado de Goiás (Sub-bacia Alto Garças, Bacia do Paraná) é ocorrente nos arredores de diversas cidades como Amorinópolis, Iporá, Caiapônia, Rio Verde e Doverlândia. Contudo, os fósseis encontrados em Goiás são, em
Fábio Augusto Carbonaro, Renato Pirani Ghilardi   +1 more
doaj   +1 more source

First record of malformed trilobites from the Silurian of Ukraine

Доповiдi Нацiональної академiї наук України
This article presents the first documented case of malformed trilobite exoskeletons from the Silurian of Ukraine. Fossils of animals with injuries and pathologies are of significant palaeobiological value, as they provide essential insights into the ...
V.S. Dernov
doaj   +1 more source

A revision of the first Asteropyginae (Trilobita; Devonian)

Geobios, 2014
Abstract A recent cladistic analysis of the Asteropyginae led to the recognition of the genus Minicryphaeus as one of the most ancestral of this subfamily. A new species, M. giganteus, is described here from the Ihandar Formation (Pragian, Lower Devonian) of Jbel El Mrakib, southern part of the Mader Basin (Morocco).
Bignon, Arnaud Marcel Jacques, Corbacho, Joan, López-Soriano, Francisco J.   +2 more
openaire   +2 more sources

Type Specimens of the Species of the Genus Papillicalymene (Arthropoda, Trilobita) from Ukraine Described by Leonid Konstantynenko

Zoodiversity
The article presents diagnoses and information on the type series of two trilobite species of the genus Papillicalymene Shirley, 1936: P. dnistroviana Konstantynenko, 2006 and P. sokoliana Konstantynenko, 2006 from the Ludlow (Upper Silurian) of Podillia
V. Dernov
doaj   +1 more source