page_title: Lepidocaris
section_title: Ecology
hierarchical_section_title: Lepidocaris / Ecology
caption_attribution_description: English: Aspect of stoneworts algae from the genus Nitella (Characeae) submerged in a shallow pond. The exact species was not able to be identified, probably Nitella opaca or Nitella capillaris. Deutsch: Blick von oben auf einen kleinen Ausschnitt eines Unterwasserrasens aus kleinwüchsigen Glanzleuchteralgen (Nitella sp.) in einem Wiesenweiher. Die genaue Art konnte trotz Hinzuziehung von Experten nicht eindeutig geklärt werden; in Frage kommen wohl Nitella opaca oder Nitella capillaris. In beiden Fällen würde es sich um sehr seltene Arten handeln. Zur besseren Orientierung wegen der Größenverhältnisse: Der Bildausschnitt umfasst schätzungsweise 60×40 cm Bodenfläche. Der Bestand tauchte im Jahr 2009 völlig überraschend in dem gut bekannten Gewässer auf, entwickelte massenhaft Oosporen und verschwand danach scheinbar wieder komplett. Sehr mysteriös, diese Armleuchteralgen!
context_page_description: Lepidocaris rhyniensis is an extinct species of crustacean. It is the only species known from the order Lipostraca, and is the only abundant animal in the Pragian-aged Rhynie chert deposits. It resembles modern Anostraca, to which it is probably closely related, although its relationships to other orders remain unclear. The body is 3 mm long, with 23 body segments and 19 pairs of appendages, but no carapace. It occurred chiefly among charophytes, probably in alkaline temporary pools.
context_section_description: Lepidocaris is one of the earliest preserved freshwater crustaceans. It is frequently found in association with the charophyte Palaeonitella (Characeae); if the ecology of Palaeonitella resembled that of its modern relatives, the water would have been alkaline. Similarly, Lepidocaris is thought to have had a similar ecology to extant members of the Anostraca, such as Artemia, inhabiting shallow, temporary pools.
caption: A modern Nitella meadow, seen from above; Lepidocaris is likely to have inhabited a similar habitat in the Devonian.
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