来自乌克兰顿涅茨盆地的莫斯科河下游(宾夕法尼亚河中部)盘状鹦鹉螺螺壳上颜色图案的第一个证据

IF 1.6 3区地球科学 Q2 GEOLOGY

Rivista Italiana Di Paleontologia E Stratigrafia Pub Date : 2023-05-15 DOI:10.54103/2039-4942/19439

V. Dernov

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引用次数: 0

摘要

在顿涅茨盆地(乌克兰东部)的莫斯科下层沉积物(卡门斯卡亚组)中发现了保存完好的卷状鹦鹉螺残骸，这使得人们能够描述贝壳表面的颜色模式，这些物种包括:副鹦鹉螺、元鹦鹉螺、Coelogasteroceras和Ephippioceras。所研究的鹦鹉螺的海螺颜色图案由沿腹外侧肩的纵向光带(Parametacoceras和Metacoceras)，腹侧(epihippioceras)的横向细线和体腔(Coelogasteroceras)的黑点表示。所描述的颜色图案代表破坏性的颜色。环境条件，如缓慢沉积、缺乏机械和化学破坏剂、缺氧条件和快速掩埋，显然是螺类螺壳保存颜色的最重要因素。

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FIRST EVIDENCE OF COLOR PATTERNS ON CONCHS OF THE LOWER MOSCOVIAN (MIDDLE PENNSYLVANIAN) COILED NAUTILOIDS FROM THE DONETS BASIN, UKRAINE

New finds of well-preserved remains of coiled nautiloids from lower Moscovian sediments (Kamenskaya Formation) of the Donets Basin (eastern Ukraine) allowed to describe the color pattern on the conch surface of species of the genera Parametacoceras, Metacoceras, Coelogasteroceras and Ephippioceras. The conch color pattern of the studied nautiloids is represented by longitudinal light bands along the ventrolateral shoulder (Parametacoceras and Metacoceras), transverse thin lines on the venter (Ephippioceras), and a black spot on the body chamber (Coelogasteroceras). Described color patterns represent disruptive coloration. Environmental conditions, e.g. slow sedimentation, absence of agents of mechanical and chemical destruction, dysaerobic conditions and rapid burial were obviously the most important factors for the preservation of coloration on the studied conchs of coiled nautiloids.

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来源期刊

Rivista Italiana Di Paleontologia E Stratigrafia 地学-地质学

CiteScore

3.60

自引率

4.30%

发文量

审稿时长

>12 weeks

期刊介绍： The Rivista Italiana di Paleontologia e Stratigrafia was founded in 1895. It publishes original papers dealing with all fields of paleontology and of stratigraphy, from Italy and the Mediterranean to the Tethys, as well across the globe from China to North America.