New findings of Prototherium ausetanum (Mammalia, Pan-Sirenia) from paving stones in Girona (Catalonia, Spain)?

IF 1.9 4区 地球科学 Q1 PALEONTOLOGY Fossil Record Pub Date : 2023-06-20 DOI:10.3897/fr.26.99096
Manja Voss, O. Hampe, K. Mahlow, J. C. Vilanova
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Abstract

Taxonomic and morphological approaches on Eocene sirenians from Catalonia (Spain) benefit from a newly discovered specimen found in a quite unusual locality, the pedestrian zone in the city of Girona. Two fossil-bearing limestone slabs from middle Eocene (Bartonian) layers of a quarry in the wider surrounding area north-west of Barcelona, were CT-scanned in the Clínica Girona to enhance more detailed investigations. Post-processing of the scans and, as far as possible, 3D-reconstruction of the preserved elements in the slabs was performed at Museum für Naturkunde Berlin. Thereby, a skull of a Dugong specimen was used as a reference point. Based on the combined analysis of macroscopic and CT-data, the specimen most likely represents Prototherium ausetanum Balaguer & Alba, 2016 and complements the available information of the holotype and hitherto only known specimen of that species. The Girona specimen is an adult, but small individual that corroborates P. ausetanum as a generally small-sized species compared to other known Prototherium taxa.
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New在赫罗纳(西班牙加泰罗尼亚)的铺路石中发现的ausetanum Prototherium(哺乳目,泛sirenia)?
西班牙加泰罗尼亚始新世sirenians的分类和形态学研究得益于在赫罗纳市步行区一个非常不寻常的地方发现的一个新标本。两块含化石的石灰岩板来自巴塞罗那西北部更广阔的周边地区的采石场的始新世中期(巴顿期)层,在Clínica赫罗纳进行了ct扫描,以加强更详细的调查。扫描的后期处理,并尽可能地在柏林自然博物馆(Museum f r Naturkunde Berlin)对石板中保存的元素进行3d重建。因此,一个儒艮标本的头骨被用作参考点。根据宏观和ct数据的综合分析,该标本最有可能代表Prototherium ausetanum Balaguer & Alba, 2016,并补充了该物种的完整模式和迄今为止唯一已知标本的可用信息。赫罗纳标本是一个成年的,但较小的个体,与其他已知的原兽分类群相比,证实了p.a usetanum通常是一个较小的物种。
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来源期刊
Fossil Record
Fossil Record PALEONTOLOGY-
CiteScore
3.60
自引率
7.10%
发文量
18
审稿时长
14 weeks
期刊介绍: Fossil Record (FR) is the palaeontological journal of the Museum für Naturkunde Berlin. This journal was founded in 1998 under the name Mitteilungen aus dem Museum für Naturkunde Berlin, Geowissenschaftliche Reihe and appears with two issues each year. Fossil Record publishes original papers in all areas of palaeontology including the taxonomy and systematics of fossil organisms, biostratigraphy, palaeoecology, and evolution. All taxonomic groups are treated, including invertebrates, microfossils, plants, and vertebrates.
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