A classification of the Conularida

Abstract

The seventeen genera of the Conulariidae are grouped into three new subfamilies. Six new genera and two new species are described.

Intrinsic Factors that Trigger the Coaxing Effect in Binary Fe–C Ferritic Alloys with a Focus on Strain Aging

“…However, the underlying mechanism of the coaxing effect has not been elucidated yet. It has been reported that the coaxing effect appears when work hardening 11) or strain-age hardening of carbon 12,13) are significant during fatigue. The latter factor likely plays an important role in the appearance of the coaxing effect in ferritic steels.…”

Intergranular Fatigue Crack Initiation and Its Associated Small Fatigue Crack Propagation in Water-quenched Fe–C Fully Ferritic Steel

“…[15][16][17] More specifically, chemical composition affecting microstructure and strength plays a key role on the microstructurally-small fatigue crack propagation behavior. In particular, carbon is the most important element in fatigue of steels.…”

Conuláridos misisípicos de Nochixtlán, Oaxaca, México: consideraciones sistemáticas, estratigráficas y paleobiogeográficas

“…Debido a que algunos caracteres cuantitativos de los conuláridos pueden verse afectados por factores tafonómicos (Leme et al, 2004), se atendieron las recomendaciones de Rodrigues (2002) y Leme (2002), realizándose descripciones con base en el mayor número posible de ejemplares que en su mayoría están bien conservados y completos o casi completos. Se sigue la clasifi cación de Leme et al (2004) y los términos morfológicos utilizados por Sinclair (1940Sinclair ( , 1942Sinclair ( , 1948Sinclair ( , 1952, Moore & Harrington (1956), Bischoff (1978), van Iten (1991a,b), van Iten et al (1996) y Leme et al (2004).…”