| 词条 | Stellaria testigera |
| 释义 |
| image = Xenophoridae - Stellaria testigera.JPG | image_width = 250px | image_caption = A view of a fossil shell of Stellaria testigera | fossil_range = {{fossil range|20.43|3.6|Miocene - Pliocene}} | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha | superfamilia = Xenophoroidea | familia = Xenophoridae | subfamilia = | genus = Stellaria | subgenus = | species = S. testigera | binomial = Stellaria testigera | binomial_authority = (Bronn, 1831) | synonyms_ref = [1] | synonyms = * Phorus testigerus Bronn, 1831
}}Stellaria testigera, common name finger carrier shell, is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.[1] Subspecies
DistributionStellaria testigera profunda is present in the Gulf of Aden and in North East Africa,[2] while Stellaria testigera digitata can be found in Senegal and Western Africa.[3]DescriptionShells of Stellaria testigera profunda can reach a size of {{convert|45|-|80|mm}},[2] while in Stellaria testigera digitata they can reach {{convert|50|-|75|mm}}.[3] These shells are characterized by the expanded peripherical flange, the presence of digitations and the smooth dorsal surface.[7][4] Fossil recordFossils of Stellaria testigera are found in marine strata from the Miocene to Pliocene (age range: from 20.43 to 3.6 million years ago.). Fossils are known from Italy, Denmark and Slovakia.[5] These mollusks lived in the Mediterranean and spread to the Atlantic Africa and the Gulf of Aden.[6][7] References1. ^1 {{WRMS species|468050|Stellaria testigera (Bronn, 1831)|||WoRMS (2010). Stellaria testigera (Bronn, 1831). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=468050 on 9 July 2010}} 2. ^1 S. t. profunda at Gastropods 3. ^1 S.t. digitata at Gastropods 4. ^Stromboidea 5. ^Paleobiology Database 6. ^1 Sven N. Nielsen, T. J. DeVries [https://www.biodiversitylibrary.org/page/8270615#page/97/mode/1up Tertiary Xenophoridae (Gastropoda) of western South America] The Nautilus. - Bailey-Matthews Shell Museum - American Malacologists, Inc. - Delaware Museum of Natural History. v.116:no.1-3 (2002) Page 75 7. ^Storia della specie Stellaria testigera
2 : Xenophoridae|Fossil taxa described in 1831 |
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