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3 giorni fa · Analyses since 2001 have concluded that Eumetazoa (more complex than sponges) are more closely related to particular groups of sponges than to other sponge groups. Such conclusions imply that sponges are not monophyletic, because the last common ancestor of all sponges would also be a direct ancestor of the Eumetazoa, which are not ...
17 giu 2024 · Cnidaria ( / nɪˈdɛəriə, naɪ -/ nih-DAIR-ee-ə, NY-) [4] is a phylum under kingdom Animalia containing over 11,000 species [5] of aquatic animals found both in fresh water and marine environments (predominantly the latter), including jellyfish, hydroids, sea anemones, corals and some of the smallest marine parasites.
11 giu 2024 · This is a list of all described Ediacaran genera, including the Ediacaran biota. It contains 237 genera. Valid genus. Junior synonym. Vague status. Rejected as valid taxon. Name. Authors. Year.
1 giorno fa · Mollusca is the second-largest phylum of invertebrate animals, after Arthropoda; members are known as molluscs or mollusks [a] ( / ˈmɒləsks / ). Around 76,000 extant species of molluscs are recognized. [3] The number of fossil species is estimated between 60,000 and 100,000 additional species. [4] The proportion of undescribed species is ...
4 giorni fa · Eumetazoa. Os animais incluídos no clado Eumetazoa são caracterizados por apresentarem o epitélio dividido em uma camada interna de células digestivas, a endoderme, e uma camada externa protetiva, ou dorsal, a ectoderme.
19 giu 2024 · Condylipoda Latreille, 1802. Arthropods ( / ˈɑːrθrəpɒd / ARTH-rə-pod) [20] are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated ( metameric) segments, and paired jointed appendages.
4 giorni fa · Zaragoza, J.A. 2017. Revision of the Ephippiochthonius complex in the Iberian Peninsula, Balearic Islands and Macaronesia, with proposed changes to the status of the Chthonius subgenera (Pseudoscorpiones, Chthoniidae).
