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A mid-Cretaceous land snail Burminella artiukhini gen. et sp. nov. from Burmese amber: a “missing link” between Pupinidae and other Cyclophoroidea? (Caenogastropoda)
Cretaceous Research ( IF 1.9 ) Pub Date : 2021-06-22 , DOI: 10.1016/j.cretres.2021.104941
Igor A. Balashov , Evgeny E. Perkovsky , Dmitry V. Vasilenko

A new species of a new genus, Burminella artiukhini, from mid-Cretaceous Burmese amber (ca. 99-98 Ma), is described in the family Pupinidae. This land snail possesses intermediate characters between the latter group and some other families of Cyclophoroidea. The shell of B. artiukhini is relatively high and has 8.5 whorls, which places it more closely to known genera of Pupinidae. But it differs from all other genera of the family by the oblique aperture and relatively wide conical shell, the characters common in many Cyclophoridae, Neocyclotidae and Alycaeidae. It means that B. artiukhini is possibly representing a morphological group that was ancestral to all other Pupinidae and, therefore, was transitional between this family and other Cyclophoroidea.



中文翻译:

白垩纪中期陆生蜗牛 Burminella artiukhini gen。等 sp. 十一月 来自缅甸琥珀:Pupinidae 和其他 Cyclophoroidae 之间的“缺失环节”?(Caenogastropoda)

来自中白垩世缅甸琥珀(约 99-98 Ma)的新属Burminella artiukhini在 Pupinidae 科中被描述。这种陆生蜗牛具有后一组和其他一些环蜗牛科之间的中间特征。B. artiukhini的壳相对较高,有 8.5 个轮,这使它与已知的 Pupinidae 属更接近。但它与该科所有其他属的不同之处在于斜孔和相对较宽的圆锥形外壳,这些特征在许多环虫科、新环虫科和蜂鸟科中很常见。这意味着B. artiukhini可能代表一个形态组,该组是所有其他 Pupinidae 的祖先,因此是该科与其他 Cyclophoroidae 之间的过渡。

更新日期:2021-07-29
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