What supergroup is Lophotrochozoa?
13 Cards in this Set
| Phylum mollusca: name supergroup, phylum, domain | Supergroup: Opisthokonta Phylum: Lophotrochozoa Domain: Eukarya |
|---|---|
| Snails, slugs, ect supergoup, phylum, class | Supergroup: Opistokonta Phylum: Mullusca Class: Gastropoda |
What groups does the clade Lophotrochozoa contain?
The Lophotrochozoa has basal Cycliophora and Mollusca groups, and more derived Lophophorate, Nemertea and Annelida groups.
What is special about Lophotrochozoa?
Lophotrochozoa is one of the three major clades that comprise bilateral animals, or Bilateria. Of the three major bilaterian groups, Lophotrochozoa possesses the greatest morphological disparity as judged by the greatest diversity of distinct body plans.
Is platyhelminthes a Lophotrochozoa?
Phylum Platyhelminthes. Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora.
What do all Lophotrochozoa have?
The lophotrochozoans are triploblastic and possess an embryonic mesoderm sandwiched between the ectoderm and endoderm found in the diploblastic cnidarians. These phyla are also bilaterally symmetrical, meaning that a longitudinal section will divide them into right and left sides that are symmetrical.
Is Cnidaria a Lophotrochozoa?
The Cnidarians (jellyfish and their relatives) represent the basal animals. The Lophotrochozoans (Phyla Platyhelminthes, Mollusca, Annelida and Rotifera) represent one of the major groups of invertebrates outside of the arthropoda.
What are the characteristics of animals classified under Lophotrochozoa?
In Summary: Superphylum Lophotrochozoa Flatworms are acoelomate, triploblastic animals. They lack circulatory and respiratory systems, and have a rudimentary excretory system. This digestive system is incomplete in most species.
What is the difference between Lophotrochozoa and ecdysozoa?
Ecdysozoans have the ability to shed their exoskeleton several times throughout their life span, whereas lophotrochozoan are the animals who possess a trochophore larvae and a feeding structure called lophophore.
Are rotifers Lophotrochozoa?
The Lophotrochozoa are a diverse group of phyla. Phylum Rotifera: Rotifers, with a wheel-like crown of cilia at one end. Phylum Acanthocephala: Spiny-headed, parasitic worms.
Are Lophotrochozoa Triploblastic?
As lophotrochozoans, the organisms in this superphylum possess either a lophophore or trochophore larvae. The lophotrochozoans are triploblastic and possess an embryonic mesoderm sandwiched between the ectoderm and endoderm found in the diploblastic cnidarians.
Are sponges Lophotrochozoa?
They account for 95% of known animal species. Lophotrochozoan- have a lophophore (a crown of cilia that surrounds the mouth) or a trochophore (larvae that have cilia around their middle). The clade Lophotrochozoa was identified by molecular data. Porifera- Sponges are basal animals that lack true tissues.
Is Lophotrochozoa a phylum?
There are five phyla in the superphylum Lophotrochozoa (also known as the crest or wheel animals): Platyhelminthes, Rotifera, Nemertea, Mollusca, and Annelida. These phyla include animals from flatworms to squids. Let’s figure out just what makes these animals part of the same superphylum.
What is the classification of Lophotrochozoa?
Lophotrochozoa is a monophyletic group of animals that includes annelids, molluscs, bryozoans, brachiopods, platyhelminthes, and other animals that descended from the common ancestor of these organisms. Lophotrochozoa is one of the three major clades that comprise bilateral animals, or Bilateria.
Is Lophotrochozoa the same as Spiralia?
It is a cladistic definition (a node-based name), so the affiliation to Lophotrochozoa of spiralian groups not mentioned directly in the definition depends on the topology of the spiralian tree of life, and in some phylogenetic hypotheses, Lophotrochozoa may even be synonymous to Spiralia.
Are Platyhelminthes sensu strictu and Acoelomorpha Lophotrochozoa?
A Systematics, Phylogeny, and Morphology. Molecular studies suggest that the Platyhelminthes sensu strictu, comprising the sister taxa Catenulida and Rhabditophora, belong to the Lophotrochozoa, whereas the Acoelomorpha represent a separate offshoot at the base of the Bilateria (Hejnol et al., 2009 ).
What are the characteristics of Lophophora?
The lophophorate taxa are characterized by the presence of a ciliated tentacular apparatus that surrounds the mouth but not the anus and is invaded by mesoderm.