{"title":"Earliest upper Barremian (Lower Cretaceous) record of bivalve Pinna (Pinnidae) from the Kopet-Dagh Basin, northeastern Iran and its possible predators","authors":"","doi":"10.1016/j.palwor.2024.03.004","DOIUrl":null,"url":null,"abstract":"<div><div>The bivalves <em>Pinna</em> sp. cf. <em>cretacea</em> (<span><span>Schlotheim, 1813</span></span>) and <em>Pinna cretacea cretacea</em> (<span><span>Schlotheim, 1813</span></span><span><span>) are systematically described for the first time from the ammonite-constrained upper Barremian (Lower Cretaceous) strata of the Kopet-Dagh Basin, northeastern Iran. This is also, the first record of the Family Pinnidae from the Kopet-Dagh Basin. The specimens were collected from the basal part of the Sarcheshmeh Formation, exposed in the Bojnurd city, North Khorasan province. Additionally, this study includes observations on predation scars (such as scalloped, embayed, and cleft scars), and </span>encrustations by orbitolinids on the </span><em>Pinna</em><span> samples. Insights into the contemporary paleoenvironment, characterized by quiet and shallow waters with a soft, muddy substrate, are also discussed.</span></div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Palaeoworld","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1871174X24000222","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The bivalves Pinna sp. cf. cretacea (Schlotheim, 1813) and Pinna cretacea cretacea (Schlotheim, 1813) are systematically described for the first time from the ammonite-constrained upper Barremian (Lower Cretaceous) strata of the Kopet-Dagh Basin, northeastern Iran. This is also, the first record of the Family Pinnidae from the Kopet-Dagh Basin. The specimens were collected from the basal part of the Sarcheshmeh Formation, exposed in the Bojnurd city, North Khorasan province. Additionally, this study includes observations on predation scars (such as scalloped, embayed, and cleft scars), and encrustations by orbitolinids on the Pinna samples. Insights into the contemporary paleoenvironment, characterized by quiet and shallow waters with a soft, muddy substrate, are also discussed.
期刊介绍：
Palaeoworld is a peer-reviewed quarterly journal dedicated to the study of past life and its environment. We encourage submission of original manuscripts on all aspects of palaeontology and stratigraphy, comparisons of regional and global data in time and space, and results generated by interdisciplinary investigations in related fields. Some issues will be devoted entirely to a special theme whereas others will be composed of contributed articles. Palaeoworld is dedicated to serving a broad spectrum of geoscientists and palaeobiologists as well as serving as a resource for students in fields as diverse as palaeobiology, evolutionary biology, taxonomy and phylogeny, geobiology, historical geology, and palaeoenvironment.
Palaeoworld publishes original articles in the following areas:
•Phylogeny and taxonomic studies of all fossil groups
•Biostratigraphy, chemostratigraphy, chronostratigraphy
•Palaeoecology, palaeoenvironment and global changes throughout Earth history
•Tempo and mode of biological evolution
•Biological events in Earth history (e.g., extinctions, radiations)
•Ecosystem evolution
•Geobiology and molecular palaeobiology
•Palaeontological and stratigraphic methods
•Interdisciplinary studies focusing on fossils and strata
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