New material of thelodonts from Lochkovian (Lower Devonian) of Qujing, Yunnan, China
Received date: 2019-04-25
Online published: 2020-01-20
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We reconstructed a wealth of three-dimensional virtual models of vertebrate micro-remains from the Xitun Formation and lower part of the Xishancun Formation (Lochkovian, Lower Devonian) of Qujing, Yunnan by means of high-resolution computed tomography. One genus (Parathelodus) and seven species (P. trilobatus, P. asiaticus, P. cornuformis, P. scitulus, P. xitunensis sp. nov., P. wangi sp. nov. and P. liaokuoensis sp. nov.) of thelodonts are described. The new discovery extends the stratigraphic distribution of Parathelodus from the Xitun Formation and the upper part of the Xishancun Formation to the lower part of the Xishancun Formation, the horizon close to the Silurian-Devonian boundary. The three new species, P. xitunensis, P. wangi and P. liaokuoensis, enhance our knowledge of the thelodont diversity from the Early Devonian of China.
CUI Xin-Dong, LI Qiang, ZHU Min, ZHU Min . New material of thelodonts from Lochkovian (Lower Devonian) of Qujing, Yunnan, China[J]. Vertebrata Palasiatica, 2020 , 58(1) : 1 -15 . DOI: 10.19615/j.cnki.1000-3118.190612
| [1] | Blieck A, Goujet D, 1978. A propos de nouveau matériel de Thelodontes (Vertébrés Agnathes) d'Iran et de Tha?lande, aper?u sur la réparition géographique et stratigraphique des Agnathanes des regions gondwaniennes au Paléozo?que moyen. Ann Soc Géol Nord, 97(4):363-372 |
| [2] | Blom H, Goujet D, 2002. Thelodont scales from the Lower Devonian Red Bay Group, Spitsbergen. Palaeontology, 45:795-820 |
| [3] | Ferrón H G, Botella H, 2017. Squamation and ecology of thelodonts. PloS ONE, 12(2):e0172781 |
| [4] | Gagnier P Y, Turner S, Friman L et al., 1988. The Devonian vertebrate and mollusc fauna from Seripona (Dept. of Chuquisaca, Bolivia). Neues Jahrb Geol Pal?ontol, Abh, 176:269-297 |
| [5] | Gross W, 1947. Die Agnathen und Acanthodier des Obersilurischen Beyrichienkalks. Palaeontogr Abt A, 96:91-158 |
| [6] | Jaekel O M J, 1911. Die Wirbeltiere. Eine übersicht über die fossilen und lebenden Formen. Berlin: Verlag Gebrüder Borntraeger. 1-252 |
| [7] | Karatajūt?-Talimaa V N, 2002. Lower Devonian (Lochkovian) thelodonts from October Revolution Island (Severnaya Zemlya Archipelago, Russia) Valentina. Geodiversitas, 24(4):791-804 |
| [8] | Karatajūt?-Talimaa V, Predtechenskyj N, 1995. The distribution of the vertebrates in the Late Ordovician and Early Silurian palaeobasins of the Siberian Platform. Bull Mus Natl Hist Nat, Paris, 17:39-55 |
| [9] | Kiaer J, Henitz A, 1932. New coelolepids from the Upper Silurian of Oesel (Esthonia). Eesti Loodustead Ark, 10:1-8 |
| [10] | M?rss T, 1982. Thelodus admirabilis n. sp. (Agnatha) from the Upper Silurian of the East Baltic. Eesti NSV, 3:112-116 |
| [11] | M?rss T, 1986. Silurian vertebrates of Estonia and West Latvia. Fossilia Balt, 1:1-104 |
| [12] | M?rss T, Karatajūt?-Talimaa V, 2002. Ordovician and Lower Silurian thelodonts from Severnaya Zemlya Archipelago (Russia). Geodiversitas, 24(2):381-404 |
| [13] | M?rss T, Miller C G, 2004. Thelodonts and distribution of associated conodonts from the Llandovery-lowermost Lochkovian of the Welsh Borderland. Palaeontology, 47(5):1211-1265 |
| [14] | M?rss T, Fredholm D, Karatajūt?-Talimaa V, 1995. Silurian vertebrate biozonal scheme. Geobios M S, 19:369-372 |
| [15] | M?rss T, Wilson M V H, Thorsteinsson R, 2002. New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian and Lower Devonian of the Canadian Arctic Archipelago. Proc Est Acad Sci: Geol, 51(2):88-120 |
| [16] | M?rss T, Wilson M V H, Thorsteinsson R, 2006. Silurian and Lower Devonian thelodonts and putative chondrichthyans from the Canadian Arctic Archipelago. Spec Pap Palaeontol, 75:1-144 |
| [17] | M?rss T, Turner S, Karatajūt?-Talimaa V, 2007. Handbook of Paleoichthyology. Vol. 1B: “Agnatha” II. Thelodonti. München: Verlag Dr. Friedrich Pfeil. 1-143 |
| [18] | Murchison R I, 1838. On the fishes of the Ludlow rocks, or Upper beds of the Silurian System. Rep Br Assoc Adv Sci Liverpool, 1837:1-91 |
| [19] | Pander C H, 1856. Monographie der fossilen Fische des silurischen Systems der russischbaltischen Gouvernements. St Petersburg: Akademie der Wissenschaften. 1-91 |
| [20] | Sansom I J, Elliott D K, 2003. A thelodont from the Ordovician of Canada. J Vert Paleont, 22(4):867-870 |
| [21] | Turner S, 1982. A new articulated thelodont (Agnatha) from the Early Devonian of Britain. Palaeontology, 25(4):879-889 |
| [22] | Turner S, 1997. Sequence of Devonian thelodont scale assemblages in East Gondwana. In: Klapper G, Murphy M A, Talent J A eds. Paleozoic Sequence Stratigraphy, Biostratigraphy, and Biogeography: Studies in Honor of Dr J. Granville (“Jess”) Johnson. Geol Soc Am Spec Pap, 321:295-315 |
| [23] | Turner S, Young G C, 1992. Thelodont scales from the Middle-Late Devonian Aztec Siltstone, southern Victoria Land, Antarctica. Antarct Sci, 4:89-105 |
| [24] | Wang N Z, 1984. Thelodont, acanthodian and chondrichthyan fossils from the Lower Devonian of Southwest China. Proc Linn Soc NSW, 107(3):419-441 |
| [25] | Wang N Z, 1992. Microremains of agnathans and fishes from Lower Devonian of central Guangxi with correlation of Lower Devonian between central Guangxi and eastern Yunnan, South China. Acta Palaeont Sin, 31:280-303 |
| [26] | Wang N Z, 1995. Thelodonts from the Cuifengshan Group of East Yunnan, China and its biochronological significance. Geobios M S, 19:403-409 |
| [27] | Wang N Z, 1997. Restudy of thelodont microfossils from the lower part of the Cuifengshan Group of Qujing, eastern Yunnan, China. Vert PalAsiat, 35(1):1-17 |
| [28] | Wang N Z, Dong Z Z, 1989. Discovery of Late Silurian microfossils of Agnatha and fishes from Yunnan, China. Acta Palaeont Sin, 28(2):192-206 |
| [29] | Wang S T, Dong Z Z, Turner S, 1986. Discovery of Middle Devonian Turiniidae (Thelodonti: Agnatha) from western Yunnan, China. Alcheringa, 10:315-325 |
| [30] | Zhao W J, Zhu M, 2015. A review of Silurian fishes from Yunnan, China and related biostratigraphy. Palaeoworld, 24:243-250 |
| [31] | Zhao W J, Wang N Z, Zhu M, 2012. The microvertebrate remains and assemblage sequences across the Silurian/Devonian transition in West Qinling, China. Vert PalAsiat, 50(4):309-321 |
| [32] | Zhu M, 1991. New information on Diandongpetalichthys (Placodermi: Petalichthyida). In: Chang M M, Liu Y H, Zhang G R eds. Early Vertebrates and Related Problems of Evolutionary Biology. Beijing: Science Press. 179-194 |
| [33] | Zhu M, 1992. Two new eugaleaspids, with a discussion on eugaleaspid phylogeny. Vert PalAsiat, 30:169-184 |
| [34] | Zhu M, 1996. The phylogeny of the Antiarcha (Placodermi, Pisces), with the description of Early Devonian antiarchs from Qujing, Yunnan, China. Bull Mus Natl Hist Nat C, 18:233-348 |
| [35] | Zhu M, Fan J H, 1995. Youngolepis from the Xishancun Formation (early Lochkovian) of Qujing, China. Geobios M S, 19:293-299 |
| [36] | Zhu M, Janvier P, 1996. A small antiarch, Minicrania lirouyii gen. et sp. nov., from the Early Devonian of Qujing, Yunnan (China), with remarks on antiarch phylogeny. J Vert Paleont, 16(1):1-15 |
| [37] | Zhu M, Schultze H P, 1997. The oldest sarcopterygian fish. Lethaia, 30(4):293-304 |
| [38] | Zhu M, Wang J Q, Fan J H, 1994. Early Devonian fishes from Guijiatun and Xujiachong formations of Qujing, Yunnan, and related biostratigraphic problems. Vert PalAsiat, 32(1):1-20 |
| [39] | Zhu M, Yu X B, Janvier P, 1999. A primitive fossil fish sheds light on the origin of bony fishes. Nature, 397:607-610 |
| [40] | Zhu M, Gai Z K, Qu Q M, 2015. Agnathans. In: Zhu M, Gai Z K, Liu Y H eds. Palaeovertebrata Sinica, Volume I, Fishes, Fascile 1. Beijing: Science Press. 81-118 |
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