Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China

Abundant and diverse trace fossils occur in the littoral-neritic sediments recording an Early Devonian transgression in South China. The well-exposed Ganxi section is located in the Longmen Mountain 100 km northwest of Chendu, Sichuan. The Lower Devonian strata are dominated by sandstones, siltstones, muddy shales, limestones, bioclastic limestones, and muddy limestones. About thirteen ichnogenera were systematically described, including Arenicolites, ?Balanoglossites, Chondrites, Cylindrichnus, Diplocraterion, Planolites, Palaeophycus, Phycodes, Rhizocorallium, Rusophycus, Skolithos, Thalassinoides, and Zoophycos. Six trace fossil associations under different sedimentary environments have been recognized as follows: the Skolithos and Diplocraterion-Skolithos associations mainly consist of domichnia derived from a high-energy zone of the foreshore to upper shoreface; the Rusophycus-Phycodes association is characterized by fodinichnia and cubichnia generated in a lower-energy zone of the upper shoreface; the Chondrites-Palaeophycus association mainly consists of domichnia, chemichnia, and fodinichnia as indicators of the lower-energy and suboxic conditions of a coastal lagoon; the Rhizocorallium association includes feeding and dwelling burrows formed in a lower-energy zone of the upper offshore enriched with food; and the Zoophycos association is characterized by fodinichnia and pascichnia as indicators of the lower offshore frequently influenced by storm waves. The entire sequence shows several transgressive-regressive cycles from the Lochkovian to Pragian and much storm influence in the Emsian.

Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China

Abundant and diverse trace fossils occur in the littoral-neritic sediments recording an Early Devonian transgression in South China. The well-exposed Ganxi section is located in the Longmen Mountain 100 km northwest of Chendu, Sichuan. The Lower Devonian strata are dominated by sandstones, siltstones, muddy shales, limestones, bioclastic limestones, and muddy limestones. About thirteen ichnogenera were systematically described, including Arenicolites, ?Balanoglossites, Chondrites, Cylindrichnus, Diplocraterion, Planolites, Palaeophycus, Phycodes, Rhizocorallium, Rusophycus, Skolithos, Thalassinoides, and Zoophycos. Six trace fossil associations under different sedimentary environments have been recognized as follows: the Skolithos and Diplocraterion-Skolithos associations mainly consist of domichnia derived from a high-energy zone of the foreshore to upper shoreface; the Rusophycus-Phycodes association is characterized by fodinichnia and cubichnia generated in a lower-energy zone of the upper shoreface; the Chondrites-Palaeophycus association mainly consists of domichnia, chemichnia, and fodinichnia as indicators of the lower-energy and suboxic conditions of a coastal lagoon; the Rhizocorallium association includes feeding and dwelling burrows formed in a lower-energy zone of the upper offshore enriched with food; and the Zoophycos association is characterized by fodinichnia and pascichnia as indicators of the lower offshore frequently influenced by storm waves. The entire sequence shows several transgressive-regressive cycles from the Lochkovian to Pragian and much storm influence in the Emsian.

___

Alpert SP (1974). Systematic review of the genus Skolithos. J Paleontol 48: 661–669.

Alpert SP (1975). Planolites and Skolithos from the Upper Precambrian-Lower Cambrian, White-Inyo Mountains, California. J Paleontol 49: 508–521.

Belaşstegui Z, de Gibert JM (2013). Bow-shaped, concentrically laminated polychaete burrows: A Cylindrichnus concentricus ichnofabric from the Miocene of Tarragona, NE Spain. Palaeogeog Palaeoclimatol Palaeoecol 381–382: 119–127.

Billings E (1862). New species of fossils from different parts of the Lower, Middle and Upper Silurian rocks of Canada. In: Geological Survey of Canada, editor. Palaeozoic Fossils, Vol. 1 (1861-1865). Ottawa, Canada: Geological Survey, pp. 96–168.

Bottjer DJ, Droser ML, Jablonski D (1988). Palaeoenvironmental trends in the history of trace fossils. Nature 333: 252–255.

Bradley J (1973). Zoophycos and Umbellula (Pennatulacea): their synthesis and identity. Palaeogeog Palaeoclimatol Palaeoecol 13: 103–128.

Bromley RG (1996). Trace Fossils: Biology and Taphonomy. London, UK: Chapman & Hall.

Bromley RG, Ekdale A (1984). Chondrites: a trace fossil indicator of anoxia in sediments. Science 224: 872–874.

Bromley RG, Hanken NM (2003). Structure and function of large, lobed Zoophycos, Pliocene of Rhodes, Greece. Palaeogeog Palaeoclimatol Palaeoecol 192: 79–100.

Brongniart AT (1823). Observations sur les fucoids. Société d’Histoire Naturelle de Paris, Mémoires 1: 301–320 (in French).

Brongniart AT (1828). Histoirre des Végétaux Fossils, ou Recherches Botaniques et Gélogiques sur les Végétaux Renfermés dans les Diverses Couches du Globe. Paris, France: G. Dufour et ED. d’Ocagne (in French).

Carvalho CND, Rodriguez NPC (2003). Los Zoophycos del Bajociense-Bathoniense de la Praia da Mareta (Algarve, Portugal): arquitectura y finalidades en régimen de dominancia ecológica. Rev Esp Paleontol 18: 229–241 (in Spanish).

Carvalho CND, Viegas PA, Cachão M (2007). Thalassinoides and its producer: populations of Mecochirus buried within their burrow systems, Boca do Chapim Formation (Lower Cretaceous), Portugal. Palaios 22: 104–109.

Chamberlain C (2000). Prologue to the study of Zoophycos. Ichnology Newsletter 22: 13–23.

Crimes TP (1970). The significance of trace fossils in sedimentology, stratigraphy and palaeoecology with examples from Lower Palaeozoic strata. Geol J 3 (Special Issue): 101–126.

Crimes TP, Herdman J (1970). Trilobite tracks and other trace fossils from the Upper Cambrian of North Wales. Geol J 7: 47–68.

Curran HA (1985). Biogenic Structures: Their Use in Interpreting Depositional Environments. Tulsa, OK: SEPM.

de Saporta G (1872). Paléontologie francaise ou description des fossils de la France. 2 sér. Végétaux. Plantes jurassiques. Paris, France: Libraire de l’academie de Medicine (in French).

Droser ML, Bottjer DJ (1989). Ichnofabric of sandstones deposited in high energy nearshore environments, measurement and utilization. Palaios 4: 598–604.

___

Bibtex @ { tbtkearth143922, journal = {Turkish Journal of Earth Sciences}, issn = {1300-0985}, eissn = {1303-619X}, address = {}, publisher = {TÜBİTAK}, year = {2015}, volume = {24}, pages = {325 - }, doi = {10.3906/yer-1409-15}, title = {Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China}, key = {cite}, author = {Zhang, Li-jun and Zhao, Zhao} }
APA Zhang, L , Zhao, Z . (2015). Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China . Turkish Journal of Earth Sciences , 24 (4) , . DOI: 10.3906/yer-1409-15
MLA Zhang, L , Zhao, Z . "Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China" . Turkish Journal of Earth Sciences 24 (2015 ): <
Chicago Zhang, L , Zhao, Z . "Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China". Turkish Journal of Earth Sciences 24 (2015 ):
RIS TY - JOUR T1 - Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China AU - Li-jun Zhang , Zhao Zhao Y1 - 2015 PY - 2015 N1 - doi: 10.3906/yer-1409-15 DO - 10.3906/yer-1409-15 T2 - Turkish Journal of Earth Sciences JF - Journal JO - JOR SP - 325 EP - VL - 24 IS - 4 SN - 1300-0985-1303-619X M3 - doi: 10.3906/yer-1409-15 UR - Y2 - 2021 ER -
EndNote %0 Turkish Journal of Earth Sciences Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China %A Li-jun Zhang , Zhao Zhao %T Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China %D 2015 %J Turkish Journal of Earth Sciences %P 1300-0985-1303-619X %V 24 %N 4 %R doi: 10.3906/yer-1409-15 %U 10.3906/yer-1409-15
ISNAD Zhang, Li-jun , Zhao, Zhao . "Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China". Turkish Journal of Earth Sciences 24 / 4 (Ağustos 2015): 325- .
AMA Zhang L , Zhao Z . Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China. Turkish Journal of Earth Sciences. 2015; 24(4): 325-.
Vancouver Zhang L , Zhao Z . Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China. Turkish Journal of Earth Sciences. 2015; 24(4): 325-.
IEEE L. Zhang ve Z. Zhao , "Lower Devonian trace fossils and their paleoenvironmental significance from the western Yangtze Plate, South China", Turkish Journal of Earth Sciences, c. 24, sayı. 4, ss. 325, Ağu. 2015, doi:10.3906/yer-1409-15