☆ 4.1 Article

MIDDLE FURONGIAN (LATE CAMBRIAN) SHUMARDIIDS FROM THE SESONG FORMATION, TAEBAEK GROUP KOREA

JOURNAL OF PALEONTOLOGY (2012)

Journal

JOURNAL OF PALEONTOLOGY

Volume 86, Issue 1, Pages 51-59

Publisher

CAMBRIDGE UNIV PRESS

DOI: 10.1666/10-107.1

Keywords

-

Categories

Paleontology

Funding

National Research Foundation of Korea [2011-0000062]

Ask authors/readers for more resources

Protocol

Community support

Reagent

Community support

Abstract

The trilobite family Shumarchidae is characterized by small size, lack or eyes, yoked librigenae, and a small number of thoracic segments. Here we report the successive occurrence of three middle Furongian shumardiid species from the Sesong Formation of Korea: Elaphraella? taebaeksanensis n. sp., Elaphraella microforma, and Elaphraella nodus. They appear to represent the oldest shumardiid morphology known so far. This genus lacks the anterolateral swellings on the glabella and has a conical glabella. Its yoked librigenae also encompass a comparatively wide genal field. Elaphraella? taebaeksanensis has a highly inflexed facial suture which may reflect the presence of small palpebral lobes. Taken together, the plesiomorphic morphology of the Shumardiidae can be summarized as having a conical glabella, small palpebral lobes, highly arched anterior cephalic margin, a wide librigenal field, and no anterolateral swellings on the glabella.

Authors

I am an author on this paper

Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.1

Not enough ratings

Secondary Ratings

Novelty

-

Significance

-

Scientific rigor

-

Rate this paper

Recommended

Article Geology

Ribbon rocks revisited: the upper Cambrian (Furongian) Hwajeol Formation, Taebaek Group, Korea

Jeong-Hyun Lee, Se Hyun Cho, Da Young Jung, Suk-Joo Choh, Dong-Jin Lee

Summary: The origin of ribbon rocks in the upper Cambrian Hwajeol Formation in Korea is discussed based on detailed microfacies analysis. Different sedimentary microfacies indicate varying formative processes, such as storm-induced bottom currents for shale facies and suspension settling or early diagenetic growth for lime mudstone facies. The proposed formative model for tempestite-type ribbon rock suggests that environmental conditions in the early Palaeozoic promoted their formation, characterized by sea-water chemistry that promoted calcite precipitation and a scarcity of burrowers.

FACIES (2021)

Add to Collection

Article Geosciences, Multidisciplinary

Recognition of the Great Unconformity in the eastern Sino-Korean Block: Insights from the Taebaek Group, Korea

Jeong-Hyun Lee, Min-Kyu Oh, Taejin Choi

Summary: This research studied the basal stratigraphic units of the Taebaek Group in the Sino-Korean Block to determine the age and position of the Great Unconformity. It found that the unconformity may lie between the Jangsan and Myeonsan/Myobong formations, indicating that the Precambrian to Cambrian boundary extends to the eastern margin of the block in the Korean Peninsula. Understanding the Great Unconformity in the Taebaek Group will help clarify the stratigraphic correlation, tectonic history, and paleogeographic reconstruction of the eastern Sino-Korean Block during the Cambrian period.

PRECAMBRIAN RESEARCH (2021)

Add to Collection

Article Geochemistry & Geophysics

REE and Sr-Nd Isotope Characteristics of Cambrian-Ordovician Carbonate in Taebaek and Jeongseon Area, Korea

Tae-Hyeon Kim, Seung-Gu Lee, Jae-Young Yu

Summary: The study analyzed carbonate formations in the central-eastern part of the Korean Peninsula, revealing that they were deposited in a shallow-marine environment and underwent multiple diagenetic processes, possibly interacting with hydrothermal fluids from intrusive granites during the Cretaceous Period.

MINERALS (2021)

Add to Collection

Article Geology

Distinguishing borings and burrows in intraclasts: Evidence from the Cambrian (Furongian) of North China

Yazhou Hu, Luke C. Strotz, Dirk Knaust, Jiayue Wang, Yue Liang, Zhifei Zhang

Summary: Hardgrounds are stratigraphic beds that cement at or near the seafloor, and borings are important indicators for studying hardground development and the evolution of bio-erosion. The identification of borings relies on the crosscutting relationship with a hard substrate and morphological criteria. In flat-pebble conglomerates (FPC), distinguishing borings from burrows with a halo can be challenging. This study establishes criteria based on trace fossils to differentiate borings from burrows with a halo in FPC.

SEDIMENTARY GEOLOGY (2023)

Add to Collection

Article Geography, Physical

Phosphatic bromalites and microfossils from the Furongian (Cambrian) of northern Poland (Baltica) and palaeobiological implications

Ewa Olempska, Blazej Blazejowski, Dieter Waloszek, Andreas Maas

Summary: The Furongian Slowi ' nska Formation in Poland has yielded well-preserved phosphatic fossils consisting of two distinct types - sinuously folded, coiled or spiral string-shaped coprolites and collapsed and deformed eggs or embryos. The coprolites are exceptionally complex, with multiple loops, suggesting a continuous production of faecal material. The high phosphate content indicates an organic-rich muddy bottom, and the producers of these coprolites may have been benthic worms. The second type of fossils are smooth-surfaced ellipsoidal to spherical forms, interpreted as eggs of phosphatocopid crustaceans, which are the most abundant fossils in the area.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2023)

Add to Collection

Article Multidisciplinary Sciences

Injuries and molting interference in a trilobite from the Cambrian (Furongian) of South China

Ruiwen Zong

Summary: An injured specimen of Shergoldia laevigata was collected from the Furongian of Guangxi, South China, showing substantial transverse shortening of the left pleural segments and barely perceptible traces of healing. The injuries are interpreted as a sub-lethal attack from an unknown predator, potentially affecting the trilobite's molting process.

PEERJ (2021)

Add to Collection

Article Geography, Physical

Quantifying the middle-late Cambrian trilobite diversity pattern in South China

Shu-han Zhang, Jun-xuan Fan, Chad A. Morgan, Charles M. Henderson, Shu-zhong Shen

Summary: This study examines the trilobite diversity pattern in the middle-late Cambrian of South China, constructing a high time-resolution species-level richness curve and identifying distinct changes in species diversity at different stages, as well as exploring trilobite evolutionary mechanisms associated with environmental changes and biotic competition.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2021)

Add to Collection

Article Geography, Physical

Animal abundance and redox conditions during the Furongian Cambrian SPICE event, western Utah

Amelia E. Olsen, David S. Jones, David A. Fike, Sara B. Pruss

Summary: The Steptoean Positive Isotopic Carbon Excursion (SPICE) is a global disturbance of the carbon cycle that occurred in the Cambrian Period. It was first reported in western Utah and is characterized by the disappearance of trilobites and a spike in δ13C values. This study examines two sections in Utah to understand the impact of the SPICE event and its correlation with fossil abundance and facies change.

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY (2023)

Add to Collection

Article Geosciences, Multidisciplinary

The first systematic description of Cambrian fossils from Myanmar: Late Furongian trilobites from the southern part of the Shan State and the early Palaeozoic palaeogeographical affinities of Sibumasu

Shelly J. Wernette, Nigel C. Hughes, Paul M. Myrow, Aye Ko Aung

Summary: This study provides formal descriptions of late Cambrian trilobites from Myanmar's southern Shan State, supporting the existence of Laurentian genera in the Molohein Group. The fauna identified in Myanmar aligns with the Sino-Australian faunal province, suggesting a geological connection between Sibumasu and Western Australia during the Cambrian period.

JOURNAL OF ASIAN EARTH SCIENCES (2021)

Add to Collection

Article Multidisciplinary Sciences

The middle Cambrian Linyi Lagerstatte from the North China Craton: a new window on Cambrian evolutionary fauna

Zhixin Sun, Fangchen Zhao, Han Zeng, Cui Luo, Heyo Van Iten, Maoyan Zhu

Summary: The discovery of the Linyi Lagerstatte in North China provides new insights into the Cambrian explosion of animals. This new lagerstatte contains well-preserved soft-bodied fossils and shows similarities with other known lagerstatten, offering a promising opportunity to study the Cambrian marine faunas.

NATIONAL SCIENCE REVIEW (2022)

Add to Collection

Article Paleontology

Graptolithina from the Guole Biota (Furongian, upper Cambrian) of South China

Joerg Maletz, Xue-Jian Zhu, Yuan-Dong Zhang

Summary: The description of benthic Graptolithina of the Guole Biota provides the first insight into the diversification of late Cambrian graptolites. The recognized species indicate a wider biogeographic distribution and a higher species level diversity for the Guole Biota.

PALAEOWORLD (2022)

Add to Collection

Article Geosciences, Multidisciplinary

A Jiangshanian (Cambrian; Furongian) trilobite fauna from the Cow Head Group, western Newfoundland

Stephen R. Westrop, Jennifer D. Eoff

Summary: This study presents the first record of an Upper Cambrian shelf-margin trilobite fauna from the Elvinia Zone (Steptoean; Jiangshanian) in eastern North America, based on the analysis of debris flow conglomerates in the Downes Point Member of the Shallow Bay Formation of western Newfoundland. The dominant species in this fauna is Buttsia, which shares similarities with trilobite biofacies from microbial buildups in the Gatesburg Formation of Pennsylvania.

CANADIAN JOURNAL OF EARTH SCIENCES (2023)

Add to Collection

Article Multidisciplinary Sciences

Synchronizing rock clocks in the late Cambrian

Zhengfu Zhao, Nicolas R. Thibault, Tais W. Dahl, Niels H. Schovsbo, Aske L. Sorensen, Christian M. O. Rasmussen, Arne T. Nielsen

Summary: The authors present a new astronomical time scale that allows for a numerical assessment of the evolution of major biotic and abiotic changes that characterized the late Cambrian Earth. By using geochemical variations as an astronomical signal and radioisotopic dates as anchors, a 16-million-year time scale is established and correlated with the biostratigraphic framework.

NATURE COMMUNICATIONS (2022)

Add to Collection

Article Biology

A macroscopic free-swimming medusa from the middle Cambrian Burgess Shale

Justin Moon, Jean-Bernard Caron, Joseph Moysiuk

Summary: This study describes the discovery of Burgessomedusa phasmiformis gen. et sp. nov., the oldest known macroscopic free-swimming medusa in the fossil record, from the middle Cambrian Burgess Shale in British Columbia, Canada. The research suggests an ancient origin for the free-swimming medusa life stage in early cnidarians and supports early evolutionary diversification of medusozoans during the late Precambrian-Cambrian transition.

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2023)

Add to Collection

Article Geosciences, Multidisciplinary

Confirmation of the Floian-Darriwilian (Lower to Middle Ordovician) hiatus in the Taebaek Group, Korea: integration of conodont biostratigraphy and sedimentology

Byung-Su Lee, Se Hyun Cho, Suk-Joo Choh, Xunlian Wang

Summary: For the first time, a depositional hiatus spanning at least 3 million years in the Ordovician period has been confirmed in the Taebaek Group, Korea, based on integrated conodont biostratigraphic and sedimentologic data. The conodont biozones of the uppermost Dumugol and lower Makgol formations are revised and redefined with a new biozonal framework. This indicates that the Ordovician succession in the Taebaek Group is an extension of that of the North China Block.

GEOSCIENCES JOURNAL (2022)

Add to Collection

Article Paleontology

Cambrian series 3 agnostoid trilobites Ptychagnostus sinicus and Ptychagnostus atavus from the Machari Formation, Yeongwol Group, Taebaeksan Basin, Korea

Paul S. Hong, Duck K. Choi

JOURNAL OF PALEONTOLOGY (2015)

Add to Collection

Article Geosciences, Multidisciplinary

Trilobite Biostratigraphy of the lower Paleozoic (Cambrian-Ordovician) Joseon Supergroup, Taebaeksan Basin, Korea

Duck K. Choi, Jeong Gu Lee, Seung-Bae Lee, Tae-Yoon S. Park, Paul S. Hong

ACTA GEOLOGICA SINICA-ENGLISH EDITION (2016)

Add to Collection

Article Geosciences, Multidisciplinary

Recent advances of trilobite research in Korea: Taxonomy, biostratigraphy, paleogeography, and ontogeny and phylogeny

Duck K. Choi, Tae-Yoon S. Park

GEOSCIENCES JOURNAL (2017)

Add to Collection

Article Geosciences, Multidisciplinary

Middle Furongian (late Cambrian) polymerid trilobites from the upper part of the Sesong Formation, Taebaeksan Basin, Korea

Tae-Yoon Park, Jang Won Sohn, Duck K. Choi

GEOSCIENCES JOURNAL (2012)

Add to Collection

Article Geosciences, Multidisciplinary

Late Ordovician volcanism in Korea constrains the timing for breakup of Sino-Korean Craton from Gondwana

Deung-Lyong Cho, Seung Ryeol Lee, Hee Jae Koh, Jun-Beom Park, Richard Armstrong, Duck K. Choi

JOURNAL OF ASIAN EARTH SCIENCES (2014)

Add to Collection

Article Paleontology

OCCURRENCE OF THE ISOPOD ARCHAEONISCUS COREAENSIS NEW SPECIES FROM THE LOWER CRETACEOUS JINJU FORMATION, KOREA

Tae-Yoon Park, George D. F. Wilson, Dong-Chan Lee, Duck K. Choi

JOURNAL OF PALEONTOLOGY (2012)

Add to Collection

Article Paleontology

ONTOGENY OF THE PTYCHASPIDID TRILOBITE QUADRATICEPHALUS ELONGATUS KOBAYASHI, 1935 FROM THE FURONGIAN (LATE CAMBRIAN) HWAJEOL FORMATION, KOREA

Ji-Hoon Kihm, Tae-Yoon Park, Duck K. Choi

JOURNAL OF PALEONTOLOGY (2013)

Add to Collection

Article Paleontology

LATE MIDDLE CAMBRIAN (CAMBRIAN SERIES 3) TRILOBITE FAUNAS FROM THE LOWERMOST PART OF THE SE SONG FORMATION, KOREA AND THEIR CORRELATION WITH NORTH CHINA

Tae-Yoon Park, Ji-Hoon Kihm, Duck K. Choi

JOURNAL OF PALEONTOLOGY (2013)

Add to Collection

Article Paleontology

ONTOGENY OF A NEW SPECIES OF THE CAMBRIAN SERIES 3 (MIDDLE CAMBRIAN) TRILOBITE GENUS LIOSTRACINA MONKE, 1903 FROM NORTH CHINA AND THE TAXONOMIC POSITION OF THE SUPERFAMILY TRINUCLEOIDEA

Tae-Yoon S. Park, Ji-Hoon Kihm, Imseong Kang, Duck K. Choi

JOURNAL OF PALEONTOLOGY (2014)

Add to Collection

Article Paleontology

FIRST RECORD OF A PLATANISTOID CETACEAN FROM THE MIDDLE MIOCENE OF SOUTH KOREA

Yuong-Nam Lee, Hiroto Ichishima, Duck K. Choi

JOURNAL OF VERTEBRATE PALEONTOLOGY (2012)

Add to Collection

Article Paleontology

MANSUYIA SUN, 1924 AND TSINANIA WALCOTT, 1914 FROM THE FURONGIAN OF NORTH CHINA AND THE EVOLUTION OF THE TRILOBITE FAMILY TSINANIIDAE

Tae-Yoon Park, Ju Eon Kim, Seung-Bae Lee, Duck K. Choi

PALAEONTOLOGY (2014)

Add to Collection

Article Geosciences, Multidisciplinary

Evolution of the Taebaeksan Basin, Korea: I, early Paleozoic sedimentation in an epeiric sea and break-up of the Sino-Korean Craton from Gondwana

Duck K. Choi

ISLAND ARC (2019)

Add to Collection

Article Geosciences, Multidisciplinary

Evolution of the Taebaeksan Basin, Korea: II, late Paleozoic sedimentation in a retroarc foreland basin and assembly of the proto-Korean Peninsula

Duck K. Choi

ISLAND ARC (2019)

Add to Collection

Article Geosciences, Multidisciplinary

Challenges in defining the base of Cambrian Series 2 and Stage 3

Xingliang Zhang, Per Ahlberg, Loren E. Babcock, Duck K. Choi, Gerd Geyer, Rodolfo Gozalo, J. Stewart Hollingsworth, Guoxiang Li, Elena B. Naimark, Tatyana Pegel, Michael Steiner, Thomas Wotte, Zhifei Zhang

EARTH-SCIENCE REVIEWS (2017)

Add to Collection

No Data Available

© Peeref 2019-2024. All rights reserved.