Salpingoeca rosetta
species of opisthokont eukaryote
Salpingoeca rosetta is a species of choanoflagellate in the family Salpingoecidae. It is a rare marine eukaryote consisting of a number of cells embedded in a jelly-like matrix. This organism demonstrates a very primitive level of cell differentiation and specialization. This is seen with flagellated cells and their collar structures that move the cell colony through the water.
Similar low level cellular differentiation and specification can also be seen in sponges. They also have collar cells (also called choanocytes due to their similarities to choanoflagellates) and amoeboid cells arranged in a gelatinous matrix. Unlike S. rosetta, sponges also have other cell-types that can perform different functions. Also, the collar cells of sponges beat within canals in the sponge body, whereas Salpingoeca rosetta's collar cells reside on the inside and it lacks internal canals. Despite these minor differences, there is strong evidence that Proterospongia and Metazoa are highly related.
Its genome has been studied as a model for pre-metazoan evolution.
The public source identifies “Salpingoeca rosetta” as species of opisthokont eukaryote. This brief keeps that definition visible, then builds a research path around Salpingoeca, rosetta and species.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Feb 5, 2026. The linked authority identifier is Q42266354. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Salpingoeca rosetta” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.