Building phenotypic character matrices for phylogenetic inference: exploration of 35 years of practice. [PDF]
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Hopkins MJ +9 more
europepmc +2 more sources
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall +2 more
wiley +3 more sources
Phylogeny and evolutionary modularity of a trilobite family over the Ordovician Radiation [PDF]
Trilobites are organized in packages; the adult trilobite body plan is composed of a cephalon (head), thorax (midsection), and pygidium (tail). These packages, or modules, are composed of traits that evolve semi-independently such that change in one ...
Ernesto E. Vargas-Parra +1 more
doaj +1 more source
Early Cambrian (Marianian) trilobites and associated faunas from the Sierra Norte de Sevilla Geopark: A scientific and heritage approach. [PDF]
Some exceptional paleontological trilobite sites located in the Sierra Norte de Sevilla UNESCO Global Geopark are presented herein, together with an analysis of their geotourism / geotrail potential and a proposal for geoconservation.
Eduardo Mayoral Alfaro +7 more
doaj +1 more source
Modularity in the trilobite head consistent with the hypothesized segmental origin of the eyes [PDF]
Melanie J. Hopkins, Ernesto Vargas-Parra
exaly +2 more sources
A summary of the Brazilian Paraná Basin Ordovician [PDF]
The study of the Ordovician of Paraná Basin culminated on the three-fold lithostratigraphic subdivision of the Rio Ivaà Group as follows: Alto Garças, Iapó and Vila Maria formations.
Carolina Zabini +11 more
doaj +1 more source
Early Silurian (Llandovery) Trilobite fauna from [PDF]
The aim of this study is to analyze the assemblage of trilobites in the Silurian sequences of Iran by exploring stratigraphic section of the Silurian Niur Formation (Asadli section).
Hamed Ameri
doaj +1 more source
Systematics, morphology, and appendages of an Early Ordovician pilekiine trilobite Anacheirurus from Fezouata Shale and the early diversification of Cheiruridae [PDF]
Pilekiines are the earliest diverging members of the successful trilobite family Cheiruridae. The pilekiine genus Anacheirurus is characterized by sub-quadratic to sub-oval glabella, pitted genae, and a distinct trunk with elongated pleural spines in ...
FRANCESC PÉREZ-PERIS +3 more
doaj +1 more source
Injuries and molting interference in a trilobite from the Cambrian (Furongian) of South China [PDF]
An injured Shergoldia laevigata Zhu, Hughes & Peng, 2007 (Trilobita, Asaphida) was collected from the Furongian of Guangxi, South China. The injuries occurred in the left thoracic pleurae possessing two marked V-shaped gaps.
Ruiwen Zong
doaj +2 more sources
Trilobite expansion into estuarine environments during the Ordovician radiation [PDF]
Trilobites have traditionally been considered fully marine. Through the integration of ichnological, palaeobiological and sedimentological datasets within a sequence-stratigraphic and stratiÂgraphic palaeobiology framework, we challenge this assumption.
M. Gabriela Mángano +5 more
doaj +1 more source

