Phylogenomics underpins a stable and mostly well-resolved hypothesis for the
interrelationships of extant arthropods. Exceptionally preserved fossils are integrated into …

The reconstruction of the phylogenetic tree of animals (TOA) has long been one of the
central interests in biological and paleobiological sciences. We review the latest results of …

Data on the first appearances of major animal groups with mineralized skeletons on the
Siberian Platform and worldwide are revised and summarized herein with references to an …

Ecdysozoans (Phyla Arthropoda, Kinorhyncha, Loricifera, Nematoda, Nematomorpha,
Onychophora, Priapulida, Tardigrada) are invertebrates bearing a tough, periodically …

Morphological phylogenetic analyses suggest that scalidophorans (priapulids, loriciferans,
and kinorhynchs) and nematoids (nematodes and nematomorphs) form the ecdysozoan …

Morphology-based phylogenetic analyses support the monophyly of the Scalidophora
(Kinorhyncha, Loricifera, Priapulida) and Nematoida (Nematoda, Nematomorpha), together …

Hadimopanella knappologica, Archaeopetasus typicus, and first descriptions of
Hadimopanella foveata Kouchinsky sp. nov. and Archaeopetasus pachybasalis Kouchinsky …

Priapulids and their extinct relatives, the archaeopriapulids and palaeoscolecids, are
vermiform, carnivorous ecdysozoans with an armoured, extensible proboscis. These worms …

Diverse carbonaceous microfossils, including exceptionally preserved remains of non-
biomineralizing metazoans, are reported from a basal middle Cambrian interval of the Kaili …

We describe a new assemblage of small carbonaceous fossils (SCF s) from diagenetically
minimally altered clays and siltstones of Terreneuvian age from the Lontova and Voosi …