Dollocaris
Dollocaris was a 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]
| Dollocaris | |
|---|---|
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| Reconstruction of Dollocaris ingens | |
| Scientific classification | |
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| Family: | Dollocarididae |
| Genus: | †Dollocaris |
| Species: | D. ingens |
| Binomial name | |
| Dollocaris ingens (van Straelen, 1923) [1] | |
Description
Dollocaris specimens measured around 20 cm (7.9 in) in length. It sported a row of small appendages to assist in swimming, as well as three pairs of clawed segmented legs,[2] 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.[3][4]
Fossil specimen
References
- "Fossil specimen - Dollocaris ingens VAN STRAELEN, 1923". science.mnhn.fr.
- "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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