Results 31 to 40 of about 4,914 (250)

Phytogeography of the Pacific Coast of North America

open access: yesAnales del Jardín Botánico de Madrid, 2009
This study was designed to explore floristic variation along the Pacific coast from Cook Inlet, Alaska (61º30’N), to the southern tip of Baja California, Mexico, at 23º02’N.
Manuel Peinado Lorca   +3 more
doaj   +1 more source

Faunal change in Cretaceous endemic shallow-marine bivalve genera/subgenera of the northeast Pacific [PDF]

open access: yes, 2020
Endemic shallow-marine Cretaceous bivalves in the northeast Pacific region (NEP), extending from southwestern Alaska to the northern part of Baja California Sur, Mexico, are tabulated and discussed in detail for the first time.
Squires, Richard L.
core  

Paläobiogeographie des Korallenooliths (Mittleres Oxfordium - Unteres Kimmeridgium): Tethyale Faunen- und Florenelement auf höherer Paläobreite [PDF]

open access: yes, 2001
An overview is given here on the palaeobiogeography of the Korallenoolith Formation (middle Oxfordian to early Kimmeridgian) in NW Germany (Lower Saxony Basin).
Fischer, Rudolf   +2 more
core   +2 more sources

Diversity patterns and palaeobiogeographical relationships of latest Devonian–Lower Carboniferous foraminifers from South China: What is global, what is local?

open access: yesJournal of Palaeogeography, 2014
During latest Devonian and early Carboniferous times, calcareous foraminifers were abundant, widely distributed, and showed the most rapid rate of evolution in the shallow-sea deposits. These factors, especially their fast phylogenetic changes, make them
Markus Aretz   +2 more
doaj   +1 more source

Pliensbachian–Toarcian ostracod biogeography in NW Europe: Evidence for water mass structure evolution [PDF]

open access: yes, 2007
This paper examines the role played by palaeoceanographic and climatic conditions on the palaeobiogeography of the Pliensbachian–Toarcian ostracods (Early Jurassic) in the European Epicontinental Sea (EES).
Arias Fernández, María del Carmen
core   +2 more sources

The oldest post-Paleozoic (Ladinian, Triassic) brachiopods from the Betic Range, SE Spain [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Triassic brachiopods from the Betic Range were unknown hitherto. Herein we describe the first brachiopod occurrences in the early Ladinian of this domain referable to a new genus and species Misunithyris goyi derived from three localities of the south ...
José Francisco Baeza-Carratalá   +2 more
doaj   +1 more source

Late Silurian palynomorphs from the Precordillera of San Juan, Argentina: Diversity, palaeoenvironmental, and palaeogeographic significance [PDF]

open access: yesActa Palaeontologica Polonica, 2018
The palynological content from the Cerro La Chilca and Quebrada Ancha sections of the Wenlock? to Přídolí Los Espejos Formation, in the Argentinean Precordillera is studied.
Victoria J. García Muro   +2 more
doaj   +1 more source

A new Megatheriinae skull (Xenarthra, Tardigrada) from the pliocene of northern venezuela – Implications for a giant sloth dispersal to central and North America [PDF]

open access: yes, 2018
A skull of a ground sloth from the Pliocene San Gregorio Formation documents a northern neotropical occurrence of a megatheriine that addresses issues on intraspecific variation and biogeography. The new specimen is broadly similar in size and morphology
Brandoni, Diego   +3 more
core   +2 more sources

Revisiting the choristodere and stem-lepidosaur specimens of the Guimarota Beds (Kimmeridgian, Portugal): taxonomic implications [PDF]

open access: yesActa Palaeontologica Polonica
The Guimarota beds (Kimmeridgian, Portugal) constitute one of the richest microvertebrate assemblages for the Upper Jurassic, which include a diverse fauna of small reptiles.
ALEXANDRE R.D. GUILLAUME   +2 more
doaj   +1 more source

Late Ordovician (Sandbian–Hirnantian) marine gastropods from the Argentine Precordillera: their biogeographical significance in a middle to high latitudinal setting [PDF]

open access: yesActa Palaeontologica Polonica
Gastropods from the Upper Ordovician of the Argentine Precordillera received less attention than other coeval marine invertebrates in this region. The present contribution supplies accurate taxonomic information recovering 10 gastropod genera which are ...
Mariel Ferrari   +2 more
doaj   +1 more source

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