西班牙南部早更新世啮齿动物臼齿平行生长的证据及其古环境意义

IF 1.8 3区 地球科学 Q2 PALEONTOLOGY Acta Palaeontologica Polonica Pub Date : 2023-01-01 DOI:10.4202/app.01074.2023
J. Agustí, P. Piñero
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引用次数: 0

摘要

Agustí, J.和Piñero, P. 2023。西班牙南部早更新世啮齿动物臼齿平行生长的证据及其古环境意义。古生物学报,68(2):379-391。本文对西班牙南部Guadix-Baza盆地Barranco de los Conejos遗址的啮齿动物区系进行了详细调查。其啮齿动物区系由三种啮齿目动物(大鼠目、大鼠目和大鼠目)和两种鼠目动物(大鼠目和大鼠目)组成。这三种阿维科动物的臼齿不断生长。Orcemys giberti和Manchenomys oswaldoreigi可以认为是当地Mimomys物种(分别为Mimomys medasensis和Mimomys tornensis)的后代,而Tibericola vandermeuleni则是东部移民。与早更新世冰期-间冰期动力学相关,Orcemys giberti和Manchenomys oswaldoreigi根系松动被解释为对化石生活方式的适应,这导致了更冷和更干燥的环境。这种环境变化也可以解释泰伯里科拉从地中海东部扩散的原因。
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Evidence for parallel development of ever-growing molars in Early Pleistocene rodents from southern Spain and their paleoenvironmental implications
Agustí, J. and Piñero, P. 2023. Evidence for parallel development of ever-growing molars in Early Pleistocene rodents from southern Spain and their paleoenvironmental implications. Acta Palaeontologica Polonica 68 (2): 379–391. In this paper, we present a detailed survey on the rodent fauna from the site of Barranco de los Conejos (Guadix-Baza Basin, southern Spain). Its rodent fauna is composed of three arvicolines ( Orcemys giberti , Manchenomys oswaldoreigi , and Tibericola vandermeuleni ) and two murids ( Castillomys rivas and Apodemus atavus ). The three arvicoline species present ever-growing molars. Orcemys giberti and Manchenomys oswaldoreigi can be considered as descendants of local Mimomys species ( Mimomys medasensis and Mimomys tornensis , respectively), while Tibericola vandermeuleni is an eastern inmigrant. Loosening of roots in Orcemys giberti and Manchenomys oswaldoreigi is explained as an adaptation to a fossorial way of life, in relation to the Early Pleistocene glacial–interglacial dynamics, which led to cooler and drier conditions. This environmental change would also explain the dispersal of Tibericola from the eastern Mediterranean.
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来源期刊
Acta Palaeontologica Polonica
Acta Palaeontologica Polonica 地学-古生物学
CiteScore
2.80
自引率
5.60%
发文量
36
审稿时长
12.5 months
期刊介绍: Acta Palaeontologica Polonica is an international quarterly journal publishing papers of general interest from all areas of paleontology. Since its founding by Roman Kozłowski in 1956, various currents of modern paleontology have been represented in the contents of the journal, especially those rooted in biologically oriented paleontology, an area he helped establish. In-depth studies of all kinds of fossils, of the mode of life of ancient organisms and structure of their skeletons are welcome, as those offering stratigraphically ordered evidence of evolution. Work on vertebrates and applications of fossil evidence to developmental studies, both ontogeny and astogeny of clonal organisms, have a long tradition in our journal. Evolution of the biosphere and its ecosystems, as inferred from geochemical evidence, has also been the focus of studies published in the journal.
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