The Spiralia are a morphologically diverse clade of protostome animals, including within their number the molluscs, annelids, platyhelminths and other...

gnathiferans are direct developers. Though gnathiferans are included in Spiralia, rotifers and chaetognaths do not exhibit spiral cleavage. Little is known...

a pseudocoelom. The Spiralia are a large group of protostomes that develop by spiral cleavage in the early embryo. The Spiralia's phylogeny has been disputed...

Protostomes are divided into the Ecdysozoa (e.g. arthropods, nematodes) and the Spiralia (e.g. molluscs, annelids, platyhelminths, and rotifers). A modern consensus...

(/ləˌfɒtroʊkoʊˈzoʊə/, "crest/wheel animals") is a clade of protostome animals within the Spiralia. The taxon was established as a monophyletic group based on molecular evidence...

priapulids), grouped together as Ecdysozoa. While annelids are placed among the Spiralia (making them more closely related to mollusks, flatworms and such), having...

recognize at least two more superphyla among the protostomes, Ecdysozoa and Spiralia. The arrow worms (Chaetognatha) have proven difficult to classify; recent...

developmental features are at odds with deuterostomes and are either akin to Spiralia or unique to Chaetognatha. Molecular phylogeny shows that Chaetognatha...

are close relatives of the Lophotrochozoa. Together the two make up the Spiralia. Syndermata was a proposed clade that included Acanthocephala and rotifers...

Animals are multicellular eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen...

Micrognathozoa (Gnathifera): Evolutionary insight from an early branch in Spiralia". Royal Society Open Science. 3 (10): 160289. doi:10.1098/rsos.160289....

scientists have criticized this argument; saying it’s based on paraphyletic Spiralia, assignments of sexual modes for the phylum level than the species level...

Gnathifera may refer to: Gnathifera (Spiralia), a clade of animals including rotifers and acanthocephalans Gnathifera (moth), a genus of moths in the family...

Nephrozoa Jondelius et al., 2002 Subdivisions Ikaria † Deuterostomia Chordata Ambulacraria Protostomia Ecdysozoa Spiralia Synonyms Eubilateria Ax, 1987...

Ecdysozoa Spiralia...

This is a list of fossils found at Maotianshan Shales, whose most famous assemblage of organisms are referred to as the Chengjiang biota. The Maotianshan...

centroneuralians, showcasing vertebrates (Chordata), mollusks (Protostomia, Spiralia) and arthropods (Protostomia, Ecdysozoa) Scientific classification Domain:...

Paraphyly Based on Phylogenomic Data Supports a Noncoelomate Ancestry of Spiralia". Molecular Biology and Evolution. 31 (7): 1833–1849. doi:10.1093/molbev/msu143...

Paraphyly Based on Phylogenomic Data Supports a Noncoelomate Ancestry of Spiralia". Molecular Biology and Evolution. 31 (7): 1833–1849. doi:10.1093/molbev/msu143...

Spiralia (annelids, molluscs, brachiopods, etc.) Ecdysozoa...

Clade: Bilateria Clade: Nephrozoa (unranked): Protostomia (unranked): Spiralia Superphylum: Lophotrochozoa Phylum: Mollusca Linnaeus, 1758 Subphyla, unplaced...

The Qingjiang biota are a major discovery of fossilized remains dating from the early Cambrian period approximately 518 million years ago. The remains...

Ecdysozoa Spiralia...

 Ecdysozoa  Spiralia Kimberella †...

Spiralia  ...

Clade: Bilateria Clade: Nephrozoa (unranked): Protostomia (unranked): Spiralia Superphylum: Lophotrochozoa Phylum: Annelida Lamarck, 1809 Classes and...

genome data confirm earlier findings which allocated these organisms to Spiralia based on their morphology. Their position in the spiralian phylogenetic...

Ecdysozoa Spiralia...

Nephrozoa Radiata Bilateria Eumetazoa Platyzoa Lophotrochozoa, Mesozoa Spiralia Fish Tetrapoda Vertebrate Reptiles Birds Sauropsida Lizard Snakes, Amphisbaenia...

Clade: Bilateria Clade: Nephrozoa (unranked): Protostomia (unranked): Spiralia Superphylum: Lophotrochozoa Clade: Tetraneuralia Wanniger, 2009 Phyla Mollusca...