Worms and gills, plates and spines: the evolutionary origins and incredible disparity of deuterostomes revealed by fossils, genes, and development
Deuterostomes are the major division of animal life which includes sea stars, acorn worms,
and humans, among a wide variety of ecologically and morphologically disparate taxa …
and humans, among a wide variety of ecologically and morphologically disparate taxa …
Evolution of bilaterian central nervous systems: a single origin?
The question of whether the ancestral bilaterian had a central nervous system (CNS) or a
diffuse ectodermal nervous system has been hotly debated. Considerable evidence …
diffuse ectodermal nervous system has been hotly debated. Considerable evidence …
A mid-Cambrian tunicate and the deep origin of the ascidiacean body plan
Tunicates are an evolutionarily significant subphylum of marine chordates, with their
phylogenetic position as the sister-group to Vertebrata making them key to unraveling our …
phylogenetic position as the sister-group to Vertebrata making them key to unraveling our …
Phylogenomic resolution of the hemichordate and echinoderm clade
Summary Ambulacraria, comprising Hemichordata and Echinodermata [1], is closely related
to Chordata, making it integral to understanding chordate origins and polarizing chordate …
to Chordata, making it integral to understanding chordate origins and polarizing chordate …
The Mesozoic marine revolution
LA Buatois, NB Carmona, HA Curran, RG Netto… - The Trace-Fossil Record …, 2016 - Springer
Abstract The Mesozoic Marine Revolution (MMR) was a major evolutionary episode
involving the large-scale restructuring of shallow-marine benthic communities and the rise to …
involving the large-scale restructuring of shallow-marine benthic communities and the rise to …
The Cambrian explosion
MG Mángano, LA Buatois - The Trace-Fossil Record of Major Evolutionary …, 2016 - Springer
Based on trace-fossil evidence, the Cambrian explosion emerges as one of the most
dramatic events in the history of the biosphere. Ichnologic data are highly valuable as an …
dramatic events in the history of the biosphere. Ichnologic data are highly valuable as an …
Cambrian suspension-feeding tubicolous hemichordates
Background The combination of a meager fossil record of vermiform enteropneusts and their
disparity with the tubicolous pterobranchs renders early hemichordate evolution conjectural …
disparity with the tubicolous pterobranchs renders early hemichordate evolution conjectural …
Exceptionally preserved soft parts in fossils from the Lower Ordovician of Morocco clarify stylophoran affinities within basal deuterostomes
B Lefebvre, TE Guensburg, ELO Martin, R Mooi… - Geobios, 2019 - Elsevier
The extinct echinoderm clade Stylophora consists of some of the strangest known
deuterostomes. Stylophorans are known from complete, fully articulated skeletal remains …
deuterostomes. Stylophorans are known from complete, fully articulated skeletal remains …
The macro‐ and microfossil record of the Cambrian priapulid Ottoia
The stem‐group priapulid Ottoia Walcott, 1911, is the most abundant worm in the mid‐
Cambrian Burgess Shale, but has not been unambiguously demonstrated elsewhere. High …
Cambrian Burgess Shale, but has not been unambiguously demonstrated elsewhere. High …
The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)
Radiodonts have long been known from Cambrian deposits preserving non-biomineralizing
organisms. In Utah, the presence of these panarthropods in the Spence and Wheeler …
organisms. In Utah, the presence of these panarthropods in the Spence and Wheeler …