Trilobites of Thailand's Cambrian-Ordovician Tarutao Group and their geological setting

被引:3
作者
Wernette, Shelly J. [1 ,2 ]
Hughes, Nigel C. [1 ]
Myrow, Paul M. [3 ]
Sardsud, Apsorn [4 ]
机构
[1] Univ Calif Riverside, Dept Earth & Planetary Sci, Riverside, CA 92521 USA
[2] Texas State Univ, Dept Geog & Environm Studies, San Marcos, TX 78666 USA
[3] Colorado Coll, Dept Geol, Colorado Springs, CO 80903 USA
[4] Minist Nat Resources & Environm, Dept Mineral Resources, Div Mineral Resources Anal & Identificat, 75-10 Rama VI Rd, Bangkok 10400, Thailand
基金
美国国家科学基金会;
关键词
Thailand; Trilobita; Cambrian; Ordovician; Sibumasu; Gondwana; EARLY PALEOZOIC OROGENESIS; HWAJEOL FORMATION; POSTEMBRYONIC DEVELOPMENT; AGNOSTOID TRILOBITES; SYSTEMATIC REVISION; TAEBAEKSAN BASIN; MASS EXTINCTION; NORTH CHINA; ONTOGENY; BIOSTRATIGRAPHY;
D O I
10.1002/spp2.1516
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
Tuff-bearing upper Cambrian to lowermost Ordovician strata on Ko Tarutao island, Satun province, southernmost peninsular Thailand, contain a rich trilobite fauna relevant to global biostratigraphy, peri-Gondwanan palaeogeography and shifting evolutionary mode. This area of Sibumasu, a lower Palaeozoic marginal Gondwanan terrane, is shown to have been closely associated with Australia, North China (Sino-Korea) and other continental fragments from the supercontinent's northern equatorial sector, including South China at that time. Shared faunas also suggest a Kazakhstani and Laurentian association. Collections from eight sections yielded 10 newly discovered species and one new genus from ancient shoreface and inner shelf siliciclastic deposits. With the new taxa and revision of taxa known previously, we refine the age of the upper two formations of the Tarutao Group to the middle of Cambrian Stage 10, and lower-middle Tremadocian. Two biozones are erected for Sibumasu: the Eosaukia buravasi Zone, encompassing all Cambrian sections from Ko Tarutao, and the Asaphellus charoenmiti Zone, encompassing the Tremadocian fauna discussed herein. The new genus is Tarutaoia and new species are Tsinania sirindhornae, Pseudokoldinioidia maneekuti, Pagodia? uhleini, Asaphellus charoenmiti, Tarutaoia techawani, Jiia talowaois, Caznaia imsamuti, Anderssonella undulata, Lophosaukia nuchanongi and Corbinia perforata. Other taxa reported for the first time from Tarutao are Mansuyia? sp., Parakoldinioidia callosa Qian, Pseudagnostus sp., Homagnostus sp., Haniwa mucronata Shergold, Haniwa sosanensis? Kobayashi, Lichengia simplex Shergold, Pacootasaukia sp., Wuhuia? sp., Plethopeltella sp., Apatokephalus sp., Akoldinioidia sp. 1 and Koldinioidia sp.
引用
收藏
页数:100
相关论文
共 252 条
[1]   Post-Cambrian trilobite diversity and evolutionary faunas [J].
Adrain, JM ;
Fortey, RA ;
Westrop, SR .
SCIENCE, 1998, 280 (5371) :1922-1925
[2]  
Adrain Jonathan M., 2004, Bulletins of American Paleontology, V365, P1
[3]   The Marjuman trilobite Cedarina Lochman: thoracic morphology, systematics, and new species from western Utah and eastern Nevada, USA [J].
Adrain, Jonathan M. ;
Peters, Shanan E. ;
Westrop, Stephen R. .
ZOOTAXA, 2009, (2218) :35-58
[4]   EARLY ORDOVICIAN CONODONTS FROM TARUTAO ISLAND, SOUTHERN PENINSULAR THAILAND [J].
Agematsu, Sachiko ;
Sashida, Katsuo ;
Salyapongse, Sirot ;
Sardsud, Apsorn .
PALAEONTOLOGY, 2008, 51 :1435-1453
[5]  
AK ERMAN T., 1986, Unpublished Honours thesis
[6]  
APOLLONOV M K, 1975, Fossils and Strata, V4, P375
[7]  
ARNOTT RW, 1990, J SEDIMENT PETROL, V60, P211
[8]  
Aung Aye Ko, 2017, Geological Society Memoir, V48, P317
[9]   Cambrian trilobite biostratigraphy and its role in developing an integrated history of the Earth system [J].
Babcock, Loren E. ;
Peng, Shanchi ;
Ahlberg, Per .
LETHAIA, 2017, 50 (03) :381-399
[10]  
Bassler R.S., 1915, Bulletin of the United States National Museum, V92, P719, DOI [DOI 10.5479/SI.03629236.92, 10.5479/si.03629236.92]