Paleontological Research最新文献_第4页

Amphiura multispina (Ophiuroidea, Amphiuridae) from the Upper Pleistocene Kioroshi Formation in a Drill Core at Nagareyama, Chiba, Central Japan 日本中部千叶县Nagareyama上更新世Kioroshi组岩心中的多棘两栖纲（蛇夫目，两栖科）

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2023-01-04 DOI: 10.2517/PR220001

Y. Ishida, Minoru Kaneko, Asaka Yokobori, Rin Mita, Hiroyuki Ishikawa, B. Thuy, Lea D. Numberger-Thuy, T. Fujita

引用次数: 0

Permian Radiolarians and Spicules from Conglomerate of the Lower Jurassic Kuruma Group in Itoigawa, Niigata Prefecture, Central Japan 日本中部新泻县Itoigawa下侏罗统Kuruma群砾岩中的二叠纪放射虫和针状体

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2023-01-04 DOI: 10.2517/PR220005

Tsuyoshi Ito, Takuma Kawajiri, A. Matsuoka

引用次数: 0

A Three-Dimensionally Preserved Frog (Amphibia, Anura) from the Lower Cretaceous Kuwajima Formation, Tetori Group, Ishikawa Prefecture, Japan 一只三维保存的蛙(两栖类，无尾目)，来自日本石川县鸟取群下白垩世古岛组

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2023-01-04 DOI: 10.2517/PR210031

Ayano Mizukami, R. Matsumoto, Ryoji Wani, S. Evans

引用次数: 0

Moscovian (Middle Pennsylvanian) Foraminifers and Biostratigraphy of the Ichinotani Formation, Hida Marginal Terrane, Japan 日本Hida边缘阶地Ichinotani组的Moscovian（宾夕法尼亚中期）有孔虫和生物地层学

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210013

F. Kobayashi

引用次数: 0

Taxonomic Revision of Lower Miocene Pecorans (Mammalia, Artiodactyla) from Japan, with a New Fossil Record of Stem Cervidae 日本中新世下Pecorans(哺乳纲，偶蹄目)的分类修正及鹿科新记录

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210019

Y. Nishioka, Y. Tomida

{"title":"Taxonomic Revision of Lower Miocene Pecorans (Mammalia, Artiodactyla) from Japan, with a New Fossil Record of Stem Cervidae","authors":"Y. Nishioka, Y. Tomida","doi":"10.2517/PR210019","DOIUrl":"https://doi.org/10.2517/PR210019","url":null,"abstract":"Abstract. The origin and early dispersion of crown groups (e.g. Cervidae and Bovidae) in pecorans are traced back to the late Oligocene or early Miocene in Eurasia. The fossil pecorans from the lower Miocene of Japan are highly fragmentary but form evidence of a zoogeographic connection between Japan and the Eurasian continent during this period. In this study, we describe dental fossils (seven specimens) from five Burdigalian formations (Nakamura Fm. ∼18.5 Ma; Hiramaki Fm. ∼18 Ma; Misawa Fm. and Kitatage/Asakawa Fm. ∼17 Ma; Kunimi Fm. ∼16 Ma), and as a result of taxonomic revision we recognize four species, including a basal species of Cervidae, Dicrocerus? tokunagai, cf. Palaeomeryx minoensis, and Amphimoschus sp. These species have the basic occlusal patterns of cheek teeth inherited from primitive pecorans (e.g. Amphitragulus), but each species displays advanced characteristics, such as full selenodonty, a weak/no external postprotocristid, and a bicuspidate third lobe of m3 (Amphimoschus). The early group of crown pecorans composed of basal cervids (Lagomerycinae or Procervulinae), Palaeomeryx s.l., and Amphimoschus, had dispersed widely in Europe (early Orleanian or MN3) and East Asia (Shanwangian), including Japan. Our findings on the Japanese fossil records demonstrate that the dispersion of a basal cervid and palaeomerycid between Japan and the Eurasian continent had been completed before 18 Ma. Further studies with additional material would reveal detailed taxonomic relationships and evolutionary process of the Japanese pecorans in the Burdigalian.","PeriodicalId":54645,"journal":{"name":"Paleontological Research","volume":"27 1","pages":"182 - 204"},"PeriodicalIF":0.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48062648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carboniferous Foraminifers of the Lower Part of the Ichinotani Formation, Hida Marginal Terrane, Japan 日本Hida边缘阶地Ichinotani组下部石炭系有孔虫

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR200033

F. Kobayashi, H. Furutani, D. Vachard

{"title":"Carboniferous Foraminifers of the Lower Part of the Ichinotani Formation, Hida Marginal Terrane, Japan","authors":"F. Kobayashi, H. Furutani, D. Vachard","doi":"10.2517/PR200033","DOIUrl":"https://doi.org/10.2517/PR200033","url":null,"abstract":"Abstract. The Ichinotani Formation distributed in the Fukuji area, Hida Marginal Terrane, central Japan, consists of fossiliferous bedded limestone intercalating reddish mudstone and sharpstone conglomerate with a continental margin affinity. The lower part of the formation in the studied area is subdivided into five fusuline zones from lower to upper, Eostaffella kanmerai, Pseudostaffella antiqua, Pseudostaffella kanumai, Profusulinella fukujiensis, and Profusulinella dagmarae. These five zones are probably correlated to the Visean/Serpukhovian (Venevian/Tarusian), middle part of the Bashkirian (Akavasian), middle to upper part of the Bashkirian (Askynbashian to Tashatinian), upper part of the Bashkirian (Tashatinian to Asatausian), and uppermost Bashkirian (Asatausian), respectively, of the stratotypes of the Russian Platform and the South Urals based on the biostratigraphy, faunal composition and correlation of foraminifers. There are remarkable faunal transitions between the Eostaffella kanmerai and Pseudostaffella antiqua zones. Almost coeval Pseudostaffella–Profusulinella assemblages are recognized between the upper part of the Lower Member and the lower part of the Middle Member in the type section of the Ichinotani Formation. Thirty-three species of foraminifers are paleontologically noted and compared to those mainly of the type materials and the taxa to have been described from the Ichinotani Formation.","PeriodicalId":54645,"journal":{"name":"Paleontological Research","volume":"27 1","pages":"107 - 130"},"PeriodicalIF":0.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42454261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A New Genus and Species of Brittle Star (Ophiuroidea: Ophioleucida) from the Upper Triassic (Carnian) of Northern Vietnam 越南北部上三叠世(卡尼期)蛇尾一新属、新种(蛇总科:蛇尾蛇目)

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210014

Y. Ishida, H. T. Trinh, B. Thuy, Lea D. Numberger-Thuy, T. Komatsu, H. D. Doan, M. T. Nguyen, Y. Shigeta, T. Fujita

引用次数: 0

Restudy of a Miocene Bryozoan Species, Microporina articulata notoensis Sakakura, 1936 with Description of Another New Species from the Nanao Calcareous Sandstone 中新世Bryozoan物种的再研究，Microporina articulata notoensis Sakakura，1936年和Nanao钙质砂岩中另一新种的描述

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210018

S. Arakawa

引用次数: 0

Revision of Four Species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Lower-Middle Miocene of Japan 日本中新世中下地区四种涡轮(Marmarostoma)(腹足纲:涡轮科)的订正

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210008

T. Kase, Y. Kurihara, S. Tomida, Mitsuo Tanabe, Takanobu Yamaoka, Yoshinori Ichihashi, Hitoshi Ohzawa, Y. Takaizumi

{"title":"Revision of Four Species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Lower-Middle Miocene of Japan","authors":"T. Kase, Y. Kurihara, S. Tomida, Mitsuo Tanabe, Takanobu Yamaoka, Yoshinori Ichihashi, Hitoshi Ohzawa, Y. Takaizumi","doi":"10.2517/PR210008","DOIUrl":"https://doi.org/10.2517/PR210008","url":null,"abstract":"Abstract. The turbinid gastropod species Turbo (Lunella) ozawai Otuka, 1938 was described based on two opercula from the lower to middle Miocene Korematsu Formation in Southwest Japan. This inadequate proposal of the new species without the shell character information has confused subsequent taxonomic and faunal studies on the early to middle Miocene species of Turbo in Japan. For the first time, we clarify the shell characters of T. (M.) ozawai based on the type series and newly obtained materials from the Korematsu Formation in the Shobara area, Hiroshima Prefecture, and the Yoshino Formation in the Tsuyama area, Okayama Prefecture, Southwest Japan. The clarification of the shell and opercular characters of T. (M.) ozawai has enabled a taxonomic revision of the previously described four nominal species from early to middle Miocene species of Turbo (Marmarostoma) from the Honshu Arc of the Japanese Islands. Consequently, these four species are reclassified into two species, T. (M.) ozawai and T. (M.) tochiyensis Kanno, 1958; T. (M.) parvuloides Nomura, 1940 and T. (M.) minoensis Itoigawa, 1960 are junior synonyms of T. (M.) ozawai and T. (M.) tochiyensis, respectively. Both species are rare examples of mollusks that thrived along the Honshu Arc throughout the Miocene Climatic Optimum (∼16.9 to 14.7 Ma). The species richness of Turbo (Marmarostoma) is similar to that of the modern species in the warm water region of the Japanese Islands.","PeriodicalId":54645,"journal":{"name":"Paleontological Research","volume":"27 1","pages":"131 - 146"},"PeriodicalIF":0.9,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46598771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Fossil Paper Wasp (Vespidae: Polistinae) from the Chibanian (Middle Pleistocene) Shiobara Group in Tochigi Prefecture, Japan 日本Tochigi县Chibanian（中更新世）Shiobara群的纸黄蜂化石

IF 0.9 4区地球科学

Paleontological Research Pub Date : 2022-11-01 DOI: 10.2517/PR210027

Yui Takahashi, Hiroaki Aiba

引用次数: 0