biostudies-literatureUnknown13An Y<h4>Background</h4>The genus <i>Urostipulosphera</i> was established in 2019. Its morphological characteristics are similar to <i>Uroglena</i> and <i>Uroglenopsis</i>, but it differs from both. This genus connects individual cells into communities through a dichotomous branching structure, which distinguishes it from <i>Uroglena</i> and <i>Uroglenopsis</i>. Although there are nine species in this genus, molecular data are available for only four species. Molecular data and species distribution records for <i>Urostipulosphaera</i> are severely lacking. Species of this genus have been recorded in a few locations in Europe and North America.<h4>New information</h4>We identified three samples that were discovered in Shanxi Province, China, based on morphological characteristics and molecular pBiodiversity data journale150900https://www.ebi.ac.uk/biostudies/studies/S-EPMC12179645biostudies-literatureNew records of the colonial chrysophyte &lt;i&gt;Urostipulosphaeraarticulata&lt;/i&gt; (Chrysophyceae, Ochromonadales) in China.PMC12179645Lv JLiu XHao JFeng JAn YNan FLiu QXie SfalseNew records of the colonial chrysophyte &lt;i&gt;Urostipulosphaeraarticulata&lt;/i&gt; (Chrysophyceae, Ochromonadales) in China.<h4>Background</h4>The genus <i>Urostipulosphera</i> was established in 2019. Its morphological characteristics are similar to <i>Uroglena</i> and <i>Uroglenopsis</i>, but it differs from both. This genus connects individual cells into communities through a dichotomous branching structure, which distinguishes it from <i>Uroglena</i> and <i>Uroglenopsis</i>. Although there are nine species in this genus, molecular data are available for only four species. Molecular data and species distribution records for <i>Urostipulosphaera</i> are severely lacking. Species of this genus have been recorded in a few locations in Europe and North America.<h4>New information</h4>We identified three samples that were discovered in Shanxi Province, China, based on morphological characteristics and molecular p2025-01-01T00:00:00Z20252026-04-08T18:48:01.878Z2026-04-08T10:45:46.259ZS-EPMC121796454054793510.3897/BDJ.13.e150900