Dollocaris
| Dollocaris Temporal range:
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| Reconstruction of Dollocaris ingens | |
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| Genus: | †Dollocaris
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| Species: | D. ingens
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| Dollocaris ingens (van Straelen, 1923) [1]
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Dollocaris is an extinct genus of thylacocephalan that lived during the Jurassic period. Fossils have been found in France, specifically the La Voulte-sur-Rhône lagerstätte. It is known for its massive compound eyes, giving Dollocaris a rather characteristic appearance. One species is currently known, D. ingens.[1]
Description
Adult specimens of Dollocaris measured over 30 cm (12 in) in length.[2] It sported a row of small appendages to assist in swimming, as well as three pairs of clawed segmented legs,[3] but it was probably a poor swimmer, instead depending on ambush to hunt prey. It is known for its well-preserved, large compound eyes, sporting well-preserved individual retinula cells, which assisted in catching prey.[4][5]
References
- ^ a b "Fossil specimen - Dollocaris ingens VAN STRAELEN, 1923". science.mnhn.fr.
- ^ Charbonnier, Sylvain; Vannier, Jean; Hantzpergue, Pierre; Gaillard, Christian (2010). "Ecological Significance of the Arthropod Fauna from the Jurassic (Callovian) La Voulte Lagerstätte". Acta Palaeontologica Polonica. 55 (1): 111–132. doi:10.4202/app.2009.0036. ISSN 0567-7920.
- ^ "Extinct crustacean Dollocaris was all eyes". phys.org.
- ^ "All eyes on me: Jurassic crustacean had largest peepers". Earth Archives.
- ^ Vannier, Jean; Schoenemann, Brigitte; Gillot, Thomas; Charbonnier, Sylvain; Clarkson, Euan (January 19, 2016). "Exceptional preservation of eye structure in arthropod visual predators from the Middle Jurassic". Nature Communications. 7 (1): 10320. doi:10.1038/ncomms10320. PMC 4735654. PMID 26785293 – via www.nature.com.
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