Chasmops - a typical representative of the family Pterygometopidae (Reed, 1905) found in an aggregate mine in Mielenko Drawskie, West Pomerania Province, Poland
The oldest trilobite being found so far in an aggregate mine in Mielenko Drawskie is the Cambrian trilobite Agnostus (Salter, 1864). In the area of the Drawsko Pomorskie District, it is possible to observe a wide range of Ordovician trilobites. Ordovician trilobites of order Phacopida (Salter, 1864) are to be found in this area quite commonly. The most frequently observed representative of the family Pterygometopidae (Reed, 1905) is a trilobite of the genus Chasmops from the Ordovician Period. It can be found in sedimentary rocks on sandy and stony fields throughout the whole Drawsko Pomorskie District
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Bibliografia
[1] Adrain, J.M. and Westrop,S.R. 2006. New earliest Ordovician trilobite genus Millardicurus: The oldest known hystricurid. Journal of Paleontology80: 650-671.
[2] Adrain, J.M., Westrop, S.R., Landing, E., and Fortey, R.A. 2001. Systematics of the Ordovician trilobites Ischyrotoma and Dimeropygiella, with species from the type Ibexian area, western U.S.A. Journal of Paleontology75: 947-971.
[3] Angelin, N.P.1854. Palaeontologica Scandinavica. Pars II, Crustacea for mationis transitionis, 25-92. Academiae Regiae Scientarum Suecanae, Holmiae.
[4] Cossman, M.1902. Rectification de nomenclature. Revue Critique de Paléozoologie6: 52.
[5] Fortey, R.A.1983. Cambrian-Ordovician trilobites from the boundary beds in western Newfoundland and their phylogenetic significance. Special Papers in Palaeontology30: 179-211.
[6] Fortey, R.A. 1997. Classification. In: R.L. Kaesler (ed.). Treatise on Invertebrate Paleontology. Part O. Arthropoda 1, Trilobita. Revised, 289-302.Geological Society of America and University of Kansas Press, Lawrence, Kansas.
[7] Fortey, R.A. 2001. Trilobite systematics: The last 75 years. Journal of Paleontology75: 1141-1151
[8] Fortey, R.A.and Owens, R.M. 1975. Proetida -a new order of trilobites. Fossils and Strata 4: 227-239.
[9] Fortey, R.A., Landing, E., and Skevington, D. 1982. Cambrian–Ordovician boundary sections in the Cow Head Group western Newfoundland. In: M.G. Bassett and W.T. Dean (eds.), The Cambrian–Ordovician Boundary. National Museums Wales Geology Series 3: 95-129.
[10] Hintze, L.F. 1951. Lower Ordovician detailed stratigraphic sections for western Utah. Utah Geological and Mineralogical Survey Bulletin39: 1-99.
[11] Hintze, L.F. 1953. Lower Ordovician trilobites from westerh Utah and eastern Nevada. Utah Geological and Mineralogical Survey Bulletin48 (for 1952): 1-249.
[12] Hupé, P. 1953. Classe des Trilobites. In: J. Piveteau (ed.), Traité de Paléontologie. Tome 3. Les Formes Ultimes d’Invertébrés. Morphologie et Évolution. Onycophores. Arthropodes. Échinoderms. Stomocordés, 44-246.
[13] Jell, P. A. & Adrain, J. M., 30 8 2002: Available generic names for trilobites.Memoirs of the Queensland Museum,48(2): 331-553. Brisbane. ISSN 0079-8835
[14] Masson et Cie, Paris. James, N.P. and Stevens, R.K. 1986. Stratigraphy and correlation of the Cambro-Ordovician Cow Head Group, western Newfoundland. Geological Survey of Canada Bulletin 366: 1-143.
[15] Kindle, C.H. 1982. The C.H. Kindle Collection: Middle Cambrian to Lower Ordovician trilobites from the Cow Head Group, western Newfoundland. Geological Survey of Canada Paper 82-1C: 1-17.
[16] Lane,P.D. 1972. New trilobites from the Silurian of north−east Greenland with a note on trilobite faunas in pure limestones. Palaeontology15: 336-364.
[17] Loch, J.D., Stitt, J.H., and Miller, J.F. 1999. Trilobite biostratigraphy through the Cambrian–Ordovician boundary interval at Lawson Cove, Ibex, western Utah, U.S.A. Acta Universitatis Carolinae, Geologica43: 13-16.
[18] Miller, J.F., Evans, K.R., Loch, J.D., Ethington, R.L., and Stitt, J.H. 2001. New lithostratigraphic units in the Notch Peak and House formations (Cambrian–Ordovician), Ibex area, western Millard County, Utah. Brigham Young University Geology Studies46: 35-69.
[19] Miller, J.F., Evans, K.R., Loch, J.D., Ethington, R.L., Stitt, J.H., Holmer, L.E., and Popov, L.E. 2003. Stratigraphy of the Sauk III Interval (Cambrian–Ordovician) in the Ibex area, western Millard County, Utah and central Texas. Brigham Young University Geology Studies 47: 23-118.
[20] Nicoll, R.S., Miller, J.F., Nowlan, G.S., Repetski, J.E., and Ethington, R.L. 1999. Iapetonudus (New Genus) and Iapetognathus Landing, unusualearliest Ordovician multielement conodont taxa and their utility for biostratigraphy. Brigham Young University Geology Studies44: 27-101.
[21] Osmólska, H. 1957. Trilobites from the Couvinian of Wydryszów (Holy Cross Mountains, Poland). ActaPalaeontologica Polonica2: 53-77.
[23] Owens, R.M. and Hammann, W. 1990. Proetide trilobites from the Cystoid Limestone (Ashgill) of NW Spain, and the supragenericclassification of related forms. Paläontologische Zeitschrift64: 221-244.
[24] Prantl, F. and Přibyl, A. 1951. A revision of the Bohemian representatives of the Family Otarionidae R. & E. Richter (Trilobitae) [in Czech and English, with Russian summary]. Sborník Státního Geologického Ústavu Ceskoslovenské Republiky, oddíl paleontologicky17 (for 1950): 353-512.
[25] Raymond, P.E. 1925. Some trilobites of the lower Middle Ordovician of eastern North America. Bulletin of the Museum of Comparative Zoology, Harvard University67: 1-180.
[26] Ross, R.J. Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Peabody Museum of Natural History,Yale University, Bulletin6: 1-161.
[27] Ross, R.J. Jr., Hintze, L.F., Ethington, R.L., Miller, J.F., Taylor, M.E., and Repetski, J.E. 1997. The Ibexian, lowermost series in the North American Ordovician. United States Geological Survey Professional Paper1579: 1-50.
[28] Stubblefield, C.J. 1959. Evolution in trilobites. An address to the Geological Society of London at its anniversary meeting on 29 April, 1959. Quarterly Journal of the Geological Society of London115: 145-162.
[29]Whittington, H.B. 1963. Middle Ordovician trilobites from Lower Head, western Newfoundland. Bulletin of the Museum of Comparative Zoology, Harvard129: 1-118.
[30] Tomasz Borowski, Odontopleura generalandersi–a new Siluriantrilobite species of the Odontopleuragenus occurring in the northPoland, Current World Environment3(2) (2008) 213-216.
[31] Tomasz Borowski,Megistaspis gibbafrom the Area of Mining Works inMielenko Drawskie, the Drawskie Lakeland, Annual Set The Environment Protection, 6 (2004)47-54.
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