| 词条 | Miraclathurella amica |
| 释义 |
| taxon = Miraclathurella amica | image = | image_caption = | authority = (H.A. Pilsbry & Johnson, 1927) | synonyms_ref = | synonyms = Clathurella amica H.A. Pilsbry & Johnson, 1917 | display_parents = 3 }}Miraclathurella amica is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1] DescriptionThe length of the shell is 16.3 mm, its dialmeter 5.25 mm. (Original description) This extinct species resembles Miraclathurella gracilis but it is less slender and the whorls are shorter and revolve less obliquely. It has the same number of axial ribs and spiral threads but, as they are relatively larger, they are much more crowded than in M. gracilis. The fine spiral lines between the prominent raised threads are very minute. The lip varix is noticeably larger and the aperture is wider. The callous nodule on the body next to the sinus is much larger than in M. gracilis.[2] DistributionFossils of this species were found in Oligocene strata in Santo Domingo. References1. ^Worldwide Moolusc Species Data Base: Miraclathurella amica 2. ^Pilsbry & Johnson (1917), New Mollusca from the Santo Domingan Oligocene, Proceedings of the Academy of Natural Sciences of Philadelphia, 1917
External links
2 : Miraclathurella|Gastropods described in 1917 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。