Adductor Scar on the Shell of the Early Cambrian Sinskolutella ordinata (Melnikova, 1983) (Bradoriida, Crustacea)

IF 0.7 4区地球科学 Q4 PALEONTOLOGY

Paleontological Journal Pub Date : 2024-04-16 DOI:10.1134/s0031030124010039

L. M. Melnikova

引用次数: 0

Abstract

A large round spot in the anterior half of the shell, identified as the adductor muscle scar, was found in the bradoriid Sinskolutella ordinata (Melnikova, 1983) from the unique Sinsk locality (Lower Cambrian of the Siberian Platform). The pores on the valves of this species are characterized. Similarities in the outline, shell size, and the presence of a large muscle scar suggest that Sinskolutella is related to ostracods of the order Leperditicopida known beginning from the Ordovician and widely diversified during the Silurian and Devonian.

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早寒武世 Sinskolutella ordinata（Melnikova，1983 年）壳上的内收痕（Bradoriida，甲壳纲）

摘要在独特的 Sinsk 地点（西伯利亚地台下寒武统）发现的腕足动物 Sinskolutella ordinata（Melnikova，1983 年）的贝壳前半部分有一个大的圆形斑点，被确定为内收肌疤痕。该物种瓣膜上的气孔具有特征性。在轮廓、壳的大小和大肌肉疤痕的存在方面的相似性表明，Sinskolutella 与奥陶纪开始已知并在志留纪和泥盆纪期间广泛多样化的 Leperditicopida 纲的梭口动物有关。

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来源期刊

Paleontological Journal 地学-古生物学

CiteScore

1.20

自引率

33.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Paleontological Journal (Paleontologicheskii zhurnal) is the principal Russian periodical in paleontology. The journal publishes original work on the anatomy, morphology, and taxonomy of fossil organisms, as well as their distribution, ecology, and origin. It also publishes studies on the evolution of organisms, ecosystems, and the biosphere and provides invaluable information on global biostratigraphy with an emphasis on Eastern Europe and Asia.