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Ordezhosteus, a new psammosteid genus Heterostraci, Psammosteiformes from the lower Frasnian Upper Devonian of the Main Devonian Field


, : Ordezhosteus, a new psammosteid genus Heterostraci, Psammosteiformes from the lower Frasnian Upper Devonian of the Main Devonian Field. Paleontological Journal 43.2

A new psammosteid, Oredezhosteus kuleshovi gen. et sp. nov., from the Amata Regional Stage (Lower Frasnian) of the Leningrad Region is described. In addition, Psammosteus livonicus Obruchev from beds of the same age from Latvia is included in the new genus. The major diagnostic characters distinguishing Oredezhosteus gen. nov. from Psammosteus Agassiz are the large rounded striated tubercles, which cover more than half width of the branchials, and the long base of the branchial plates.

US$19.90

DOI: 10.1134/s0031030109020117


Other references

Weber, O.; Gruter, O., 1994: Annual report on ease of milking tests in 1993. For 16 968 Swiss Brown cows tested for ease of milking in 1993, daily milk yield averaged 18.45+or-3.96 kg, the amount of milk obtained from the front udders was 46.05+or-4.85%, milk flow per min averaged 2.77+or-0.52 kg, and the weight of strippi...

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Park; Harris; Lubensky, 1987: Noise exponents of the random resistor network. Physical Review. B, Condensed Matter 35(10): 5048-5055

Jiao, L.; Ouyang, S.; Liang, M.; Niu, F.; Shaw, N.; Wu, W.; Ding, W.; Jin, C.; Peng, Y.; Zhu, Y.; Zhang, F.; Wang, T.; Li, C.; Zuo, X.; Luan, C-Hao.; Li, D.; Liu, Z-Jie., 2013: Structure of severe fever with thrombocytopenia syndrome virus nucleocapsid protein in complex with suramin reveals therapeutic potential. Severe fever with thrombocytopenia syndrome is an emerging infectious disease caused by a novel bunyavirus (SFTSV). Lack of vaccines and inadequate therapeutic treatments have made the spread of the virus a global concern. Viral nucleocapsid prote...

Perveaux, A.; Castro, P.J.; Lauvergnat, D.; Reguero, M.; Lasorne, B., 2015: Intramolecular Charge Transfer in 4-Aminobenzonitrile Does Not Need the Twist and May Not Need the Bend. A study combining accurate quantum chemistry and full-dimensional quantum dynamics is presented to confirm the existence of an ultrafast radiationless decay channel from the charge-transfer state to the locally excited state in 4-aminobenzonitrile...

Jogansen, BG.; Faizova, LV., 1978: On the definition of indicators of occurrence, abundance, biomass and their interrelationships in some hydrobionts.. Trudy Vsesoyuznogo Gidrobiologicheskogo Obshchestva, 22: 215-225

Mackerron, D.K.L., 1976: Wind damage to the surface of strawberry leaves. Large brown lesions formed on the leaves of the strawberry cv. Cambridge Favourite after exposure to wind. On both surfaces the damaged epidermis was coloured light brown, but below the adaxial surface there was, in addition, a pattern of discolou...

Lopingco, T.; Mobbs, C.V.; Benson, D.; Roberts, J.L., 2000: A model for transcriptional regulation of the POMC promoter by leptin. Leptin, the hormone product of the ob gene is synthesized by white adipose tissue and plays a role in the maintenance of body weight homeostasis. Among the many responses to an increase in circulating leptin is an increase in expression of the ano...

Luotonen, M.; Uhari, M.; Uhari, M.; Aitola, L.; Lukkaroinen, A.M.; Luotonen, J., 1998: Gender and teachers' rating of linguistic skills among second-grade schoolchildren. The aim of the study was to evaluate the possible differences in linguistic skills and school achievement between girls and boys. In a nation-wide study, the achievement of 1,936 second-grade Finnish girls and boys was appraised according to the t...