Yongjiacaris
Extinct freshwater shrimp from the Early Cretaceous of China.
Last updated
Among Mesozoic freshwater caridean shrimp, this genus is only the second one documented.[1] The body length of this shrimp ranged between 1.5 and 2 cm.[1]
Scientific classification
- KingdomAnimalia
- PhylumArthropoda
- CladePancrustacea
- ClassMalacostraca
- OrderDecapoda
- SuborderPleocyemata
- InfraorderCaridea
- FamilyPalaemonidae
- GenusYongjiacaris
- SpeciesYongjiacaris zhejiangensis
Named by Garassino, Shen, Schram & Taylor, 2002
Sources: Wikipedia taxobox: Yongjiacaris (CC BY-SA 4.0)
Where the yongjiacaris has been recorded
Map: drawn by Codexery. Data: Natural Earth basemap (public domain) · place coordinates: Wikipedia (CC BY-SA 4.0)
Quick Facts
- Species
- zhejiangensis
Facts from the source article.
Key facts and history
The genus name Yongjiacaris refers to Yongjia County in Zhejiang Province, China.[2] The species name zhejiangensis is derived from the province name.[2] Specimens were also found in the Showchang Formation near Jiande, in southeastern China.[2] These two rock units date to the Barremian age of the Early Cretaceous.[2]
Volcanic rocks in the C Member of the Moshishan Formation are dated to 120 million years old.[2] Volcanic rocks in the Showchang Formation are dated to 118 million years ago.[2] Yongjiacaris represents the first member of its family described from the Barremian age.[1] One hundred and thirty-eight specimens from the C Member of the Moshishan Formation in Yongjia County were used for the description.[2]
Sandstone, shale, tuff, conglomerate, and rhyolite are the rock types that make up the C Member of the Moshishan Formation.[2]
References
- Wikipedia, "Yongjiacaris" (CC BY-SA 4.0), which cites: Alessandro Garassino, "Yongjicaris zhejiangensis n. gen. n. sp. (Crustacea, Decapoda, Caridea) from the Lower Cretaceous of Zhejiang Province, China'", Bulletin of the Mizunami Fossil Museum, 2002, p. 73–80; Alessandro Garassino, "Yongjicaris zhejiangensis n. gen. n. sp. (Crustacea, Decapoda, Caridea) from the Lower Cretaceous of Zhejiang Province, China'", Bulletin of the Mizunami Fossil Museum, 2002, p. 73–80 (original not read by us) en.wikipedia.org
- Wikipedia, "Yongjiacaris" (CC BY-SA 4.0), which cites: Alessandro Garassino, "Yongjicaris zhejiangensis n. gen. n. sp. (Crustacea, Decapoda, Caridea) from the Lower Cretaceous of Zhejiang Province, China'", Bulletin of the Mizunami Fossil Museum, 2002, p. 73–80; Alessandro Garassino, "Yongjicaris zhejiangensis n. gen. n. sp. (Crustacea, Decapoda, Caridea) from the Lower Cretaceous of Zhejiang Province, China'", Bulletin of the Mizunami Fossil Museum, 2002, p. 73–80; Alessandro Garassino, "Yongjicaris zhejiangensis n. gen. n. sp. (Crustacea, Decapoda, Caridea) from the Lower Cretaceous of Zheji en.wikipedia.org
Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Yongjiacaris (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.
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Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: Yongjiacaris (CC BY-SA 4.0).
- Word definitions: the Codexery glossary, each quoted from its Wikipedia article.
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