Results 41 to 50 of about 8,217 (211)

Siphonotretoid brachiopods – a thorny problem [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Siphonotretoids are presently placed within the subphylum Linguliformea and the class Lingulata, where they constitute a small, relatively short-lived superfamily and order, appearing near the end of the mid-Cambrian, with most forms becoming extinct ...
Lars E. Holmer   +4 more
doaj   +1 more source

The Middle Cenomanian basal series of Planinica, Western Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
Sedimentary rocks of the Upper Cretaceous basal series found at the village of Planinica, Western Serbia, are composed of thick coarse clastics and beds and intercalations of medium- to fine-grained clastics. The series lies transgressively over Jurassic
Rabrenović Dragoman   +5 more
doaj   +1 more source

Transforming Life Science Through Chromosome-Level Genome Assemblies. [PDF]

open access: yesGenes Cells
Chromosome‐level genome assemblies provide a framework for “glocal biology” in species of interest, linking local molecular features to chromosome architecture and evolutionary context. When integrated with pangenome analysis, comparative multi‐omics, genome language models, and experimental approaches, these assemblies enable hypothesis generation and
Kon T   +7 more
europepmc   +2 more sources

Retreat, Resilience, and Reorganization: Decoding the Post-Paleozoic Evolution of Brachiopods

open access: yesDiversity
The Paleozoic–Modern Evolutionary Fauna transition is defined by the ecological replacement of brachiopods by bivalves. However, it remains debated whether post-Paleozoic brachiopods experienced a simple, continuous global decline or a complex ...
Facheng Ye
doaj   +1 more source

Biometric Relationship Between Growth Pattern and Biological Reproduction of a Living Fossil Benthic Brachiopods (Lingula anatina Lamarck, 1801) in Aceh Northern Shore

open access: yesIlmu Kelautan, 2023
Brachiopods are a group of ancient marine invertebrates that are still found today, so they are known as "living-fossil". The purpose of this study was to determine reproductive biology through sex ratio approach, gonad maturity stages, body mass weight ...
Chitra Octavina   +8 more
doaj   +1 more source

A multiproxy study of the Puhmu core section (Estonia, Upper Ordovician): consequences for stratigraphy and environmental interpretation [PDF]

open access: yesEstonian Journal of Earth Sciences, 2017
A multiproxy study of the Katian and Hirnantian in the Puhmu core in NE Estonia resulted in new data on chitinozoan and brachiopod biostratigraphy. Some mass occurrences of dasycladacean algae are tied to small early Katian ‘reefs’.
Dimitri Kaljo   +3 more
doaj   +1 more source

Taxonomic diversity dynamics of early cretaceous brachiopods and gastropods in the Azerbaijanian domains of the Lesser Caucasus (Neo-Tethys Ocean) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2014
Palaeontological data available from the Azerbaijanian domains (Somkhit-Agdam, Sevan-Karabakh, and Miskhan-Kafan tectonic zones) of the Lesser Caucasus permit reconstruction of the regional taxonomic diversity dynamics of two groups of Early ...
Ruban Dmitry A.
doaj   +1 more source

Brachiopod Molecular Phylogeny [PDF]

open access: yes, 2018
Analysis by parsimony, maximum likelihood and distance methods of newly determined nuclear-encoded SSU rRNA gene sequences from 23 species of articulate brachiopods, six inarticulate brachiopods, two phoronids and an ectoproct, together with other sequences from published and unpublished sources show that lophorates cluster with protostome, not ...
Cohen, B.L., Gawthrop, A.B.
openaire   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

open access: yesSedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot   +8 more
wiley   +1 more source

LATE CARBONIFEROUS BRACHIOPODS FROM KARAKORUM, PAKISTAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1999
Carboniferous rocks from North Karakorum display sharp lateral variations in lithology and thickness suggesting accumulation in half-grabens during continental rifting between the Karakorum block and northern Gondwana. Different Carboniferous successions,
LUCIA ANGIOLINI   +2 more
doaj   +1 more source

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