This paper gives a critical review of all relevant, published works on the stratigraphy, tectonics, magmatism, metamorphism and metallogeny of the metamorphic complex of the Drina-Ivanjica Formation in eastern Bosnia-western Serbia. Special attention was paid to all unresolved or controversial issues in geology and metallogeny of this area. The basic controversial geological problem is the ques...

The Kalkarindji continental flood basalt province of northern Australia erupted in the mid Cambrian (c. 511 505 Ma). It now consists of scattered basaltic lava fields, the most extensive being the Antrim Plateau Volcanics (APV) a semi-continuous outcrop (c. 50,000 km) reaching a maximum thickness of 1.1 km. Cropping out predominately in the SW of the APV, close to the top of the basalt successi...

The taxonomy of simply deformed paradoxidids from the Miaolingian (Cambrian) Slowiec Hill, Holy Cross Mountains, Poland, is revised based on morphometric analysis. material represents two species: Acadoparadoxides slowiecensis (Czarnocki in Orlowski, 1965) and Hydrocephalus ? polonicus 1965). A new assemblage zone combined although not precisely known ranges these taxa suggested replacing previ...

For an arbitrary finite Coxeter group W , we define the family of Cambrian lattices for W as quotients of the weak order on W with respect to certain lattice congruences. We associate to each Cambrian lattice a complete fan, which we conjecture is the normal fan of a polytope combinatorially isomorphic to the generalized associahedron for W . In types A and B, we obtain, by means of a fiber-pol...

The current sedimentological and petrographical research of the Abbottabad Formation has been carried out in order to understand formation evolution Proto-Tethys Ocean during Cambrian on northern margin Indian Plate. Muzaffarabad region is located east Upper Indus Basin southern part Hazara Kashmir Syntaxis. geological history varies from Precambrian recent period. well exposed along Syntaxis a...

as Mollusca (Coleoidea) and precursors of Cambrian Nectocaridids and extant cuttlefish and squid. Abstract A functional interpretation of the problematic Ediacaran fossils Podolimurus and similar organisms such as Dickinsonia indicates that they are hitherto unrecognized members of Mollusca: Coleoidea and precursors of Cambrian Nectocaridids and of extant cuttlefish and squid. This interpretati...

The fossil record of the Cambrian Period has been known as a problem for evolutionary thegfory since Darwin’s Origin of Species in 1859. Darwin was aware of the sudden appearance of complex animal forms in the Cambrian from his own collecting in northeastern Wales. Complex animal forms such as trilobites seemed to appear with geological suddenness with no apparent ancestors in older rocks below...

Abstract A moderately diverse assemblage of brachiopods from the Latham Shale Lagerstätte (Cambrian Series 2, upper Stage 4) and Cadiz Formation (Miaolingian, Wuliuan), California is described in detail for first time. The fauna includes both linguliform rhynchonelliform brachiopods— Hadrotreta primaea (Walcott, 1902), Paterina prospectensis 1884), Dictyonina pannula (White, 1874), Mickwitzia o...