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Showing results for tags 'ningcheng'.
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Taxonomy from Fossilworks.com. Diagnosis for the genus from Yang et al. 2012, p. 4: 'Large neuropterans (forewing 50–75 mm long) with the following character states: labial palpi stout, relatively short; antennae stout, filiform, apparently much shorter than forewing length; two tibial spurs straight, shorter than basitarsus; claws big, strongly curved; in both wing, humeral veinlet well-developed, strongly recurrent, branched; presumed ScA short, fused with ScP within humeral area; membrane covered with dense, long hairs; RA (or ScP+RA) entering margin well before wing apex; subcostal crossveins numerous; radial crossveins irregularly spaced, not forming gradate series; in the forewing, MP, CuA, CuP dichotomously branched; presumed AA1+2 very short (found in Parakseneura gen. nov.); AA3+4, AP1+2, AP3+4 deeply forked; in hind wing, presumed AA1+2 very short (found in Pseudorapisma gen. nov.); proximal half of hind wings considerably wider than distal.' Determined by Dr. V. Makarkin, Academy of Sciences Vladivostok, Russia, as Paraksneura sp. It might be P. albadelta. Line drawing from Yang et al., 2012, p. 12: References: Yang Q, Makarkin VN, Winterton SL, Khramov AV, Ren D. (2012) A Remarkable New Family of Jurassic Insects (Neuroptera) with Primitive Wing Venation and Its Phylogenetic Position in Neuropterida. PLoS ONE 7(9): e44762. doi:10.1371/journal.pone.0044762.
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- parakseneura
- daohugou
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Thoughts on this? 3.26 cm, from Ningcheng, inner Mongolia. Jurassic. Ningcheng is the Daohugou beds of the Tiaojishan Formation. My first thought is it could be a mammal. But thats just a guess becausr of its strangeness.
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Taxonomy from Wang et al. 2009. Daouhugounectes primitivus is a predaceous water beetle grub with raptorial forelegs and natatorial mid- and hindlegs. Diagnosis from Wang et al. 2009, p. 653." Head transverse, narrowing anterior of the base; nasale with rounded lateral lobes. Mandible with retinaculum near its middle. Prothoracic tergite somewhat longer than meso- and metathoracic tergites. Legs relatively short; mid- and hindleg distinctly longer than foreleg, their femora, tibiae and tarsi subequal in length, tibae slightly dilated at apex, tarsi roundly dilated anteriorly. Forelegs with sparse strong setae; meso- and metafemora with sparse thin hairs at posterior margin, tibiae and tarsi with short oblique setae and long think hairs along both sides. Abdomen with nine segments, seven of them transverse; sclerites in tergal position; sclerite VIII almost circular, curved ventromedially. Small subquadratic segment IX present between urogomphi. The closing apparatus of the spiracles on segment VIII weakly developed; trachea with helical thickening weak (compared to that of Coptoclava). Urogomphi approximately 2.5 times as long as tergite VIII." Line drawing from Wang et al, 2009 (scale bar 5 mm): Reference: B. Wang, A. G. Ponomarenko, and H.-Ch. Zhang (2009): A new coptoclavid larva (Coleoptera: Adephaga: Dytiscoidea) from the Middle Jurassic of China, and its phylogenetic implication. Paleontological Journal 43(6):652-659.
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- ningcheng
- nei mongol
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Is either related or identical to Orthophlebia stigmosa (picture A) or O. nervulosa (picture D) Reference.: Xiao Qiao, Chungkun Shih & Ren (2012): Two new Middle Jurassic species of orthophlebiids (Insecta: Mecoptera) from Inner Mongolia, China. Alcheringa: An Australasian Journal of Palaeontology, DOI:10.1080/03115518.2012.671689
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- orthophlebia
- scorpionfly
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From the album: Vertebrates
Salamander non det Late Jurassic Daohugou biota Ningcheng Nei Mongol PRC-
- salamander
- ningcheng
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Taxonomy from Wang & Rose 2005. Revised diagnosis from Wang & Rose 2005, p. 524: "Mesozoic salamander showing combination of larval and adult features indicating neoteny or incomplete metamorphosis. Larval features include: external gills; toothbearing coronoid; larval-shaped pterygoid; short maxillary arcade with underdeveloped maxilla. Adult features include: extensive medial contact of nasals; posteriorly directed, dentigerous vomerine bar in the palate. Differing from other Mesozoic salamanders in the following combination of character states: 15–16 presacrals; vertebrae with short transverse processes; ribs unicapitate and proximally expanded; anterior process of pterygoid directed anteromedially towards vomer, rather than anterolaterally towards posterior end of maxilla; vomer with large tooth patch anteriorly and longitudinal dentigerous bar posteriorly; nasals large with no anterior notch; frontal with no anterolateral extension; alary process of premaxilla about two-fifths width of premaxilla; phalangeal formulae of 2-2-3-2 and 2-2-3-3-2 for manus and pes, respectively." Line drawing from Wang & Rose 2005, p. 528: Identified by oilshale. References: Wang, Y. (2000) A new salamander (Amphibia: Caudata) from the Early Cretaceous Jehol Biota. Vertebrata PalAsiatica 38:100-103. Wang, Y. and Rose, Ch. (2005) JEHOLOTRITON PARADOXUS (AMPHIBIA: CAUDATA) FROM THE LOWER CRETACEOUSOF SOUTHEASTERN INNER MONGOLIA, CHINA. Journal of Vertebrate Paleontology 25(3):523–532, September 2005. Carroll, R. & Zheng, A. (2012) A neotenic salamander, Jeholotriton paradoxus, from the Daohugou Beds in Inner Mongolia. Zoological Journal of the Linnean Society 164(3) · March 2012. Ke-Qin Gao, Jianye Chen, and Jia Jia (2013) Taxonomic diversity, stratigraphic range, and exceptional preservation of Juro-Cretaceous salamanders from northern China. Can. J. Earth Sci., Vol. 50, 2013 pp. 255-276. Donge LiPing, HUANG DiYing & WANG Yuan (2012): Two Jurassic salamanders with stomach contents from Inner Mongolia, China. Chinese Science Bulletin January 2012 Vol.57 No.1: 72-76.