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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Spumellaria entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-07-11 and was most recently seen on 2026-07-11.
Spumellaria is an order of radiolarians in the class Polycystinea. They are ameboid protists appearing in abundance in the world's oceans, possessing a radially-symmetrical silica (opal) skeleton that has ensured their preservation in fossil records. They are holoplanktonic, meaning they spend their whole lives classified as plankton. Spumellaria are globally distributed and a big part of our ocean’s silica biogeochemical cycle. Before diatoms, they were the main contributors to siliceous ocean sediments. They belong among the oldest Polycystine organisms, dating back to the lower Cambrian. Their skeletons are easily preserved and therefore are frequently used as tools in paleo-environmental reconstruction studies.
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Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.