...Pierre Hupe Abstract Describes a structure developed on the ventral face of the thorax of an Ordovician Asaphus cornutus, which is considered to represent an appendage. GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive...

...CHRISTIAN M. Ø. RASMUSSEN; ARNE T. NIELSEN; DAVID A. T. HARPER Abstract A detailed ecostratigraphical framework is established for the lower Middle Ordovician Kundan regional stage of the East Baltic area corresponding to the Asaphus expansus , A. raniceps and A. eichwaldi trilobite zones (lower...

...Lesley Cherns; James R. Wheeley; Lars Karis Abstract Asaphus trilobites preserved in tunnel systems of the trace fossil Thalassinoides from the mid-Ordovician (ca. 465 Ma) Holen Limestone, Sweden, are interpreted as the trace makers, enabled by shallow carbonate firm grounds to construct open...

... be misleading. We have therefore had to revert to the use of Megistaspis , Asaphus and Ptychopyge in broader and supposedly, more ‘natural’ senses. On the other hand, we keep Niobe and Niobella apart since these genera seem to define conservative lineages that go back...

...Pierre Hupe Abstract Discusses the cephalic vascular system of trilobites, on the basis of a study of structures observed in specimens of Ordovician Asaphus cornutus. GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive...

... of the period) Harpes for his helmet, Isotelus for a shield, Remopleurides on his arm, Asaphus on his back, Bumastus on his rump and Isotelus on his leg. His opponent has Ampyx for his helmet, Trinucleus caractaci for a shield and Phillipsia on his thighs. The umpire (said to be Murchison) has...

..., 1888 and a syntype of ‘ Asaphus ’ laticostatus Green, 1832 , the latter being regarded by Hall ( 1876 ) and Hall and Clarke ( 1888 ) as a synonym of Anchiopsis anchiops . Lespérance and Bourque ( 1971 ) considered ‘ Dalmanites ( Chasmops )’ anchiops var. sobrinus to be a possible synonym...

... the well-known stalk-eyed trilobites include Asaphus ( Neoasaphus ) kowalewskii Lawrow, 1856 from the Middle Ordovician near St. Petersburg, Russia, Cybellela rex ( Nieszkowski, 1857 ) from the Upper Ordovician of Estonia, both of which occur in light colored micritic limestones, and Miraspis mira...

...     Conularia     Graptolites Acalephs Hundreds of specimens   Crinoid stems Corals     Chaetetes Columnaria alveolata Cyathophyloids     Sponges Receptaculites 2   Trilobites Hundreds of specimens   Asaphus     Calymene     Trinucleus Glyptocrinus...

... collected at approximately 1 m (HUQ16-22) and 0.75 m (HUQ16-23) below the top of the local succession (at the sampling date the quarry was active). These sample levels lie within the Lenodus variabilis conodont and Asaphus expansus trilobite zones of the Kunda regional Stage (formations A + B; Bagnoli...

... into two zones: an upper zone composed of calcareous shales containing a beautiful trilobite fauna and a lower zone of interstratified shales and limestones containing an Isolelus and Asaphus fauna. The correlation of the Maquoketa shale with the Oklahoma section was a much-discussed point...

.... are reported. Keywords: Palaeontology, Trilobites, Cambrian, Zanskar INTRODUCTION Records of trilobites from the Zanskar Basin are sketchy. Dungrakoti et al. (1974) recorded trilobites from the Kurgiakh nala section and refered them to Asaphus & Ptychoparia; no specific identifications were made. Srikantia et...

... as the cubichnia tracemaker of Rusophycus pudicum Hall, 1852 ( Osgood, 1970 ). Two other Ordovician asaphids ( Ogygyinus armoricanus and Lycophron sp .) were also reported preserved in situ within their Rusophycus burrows ( Draper, 1980 ; Fortey and Owens, 1999 ). Burrowing asaphid trilobites ( Asaphus...

... boundary of the B. norrlandicus Zone correlates with a level close to the lower boundary of the Megistaspis ( M. ) limbata Trilobite Zone (cf. Löfgren, 1985 ) and its upper boundary falls within the Asaphus expansus Trilobite Zone. The traditional Ordovician Series of Great Britain have...

.... 1974) have described Ptychoparia sp. and Asaphus sp. and assigned it an upper Cambrian age. Nanda and Singh (op. cit) have considered them equivalent to Upper-Middle Haimanta Group of Hayden (1904) and also considered these rocks to be the continuation of Parahio "series" of Hayden. MODE...

.... Fine concentric lines occur around the front end of median body of hypostome. Pygidial border shows transverse and faint lines. From Latin punctata , meaning “punctate,” referring to surface of cranidium densely covered with fine pits. Asaphus ( Nileus ) armadillo Dalman, 1827...

... Ridge area. The Opohonga Limestone was first interpreted to be Ordovician based on the discovery of a brachiopod, ( Dalmanella cf. D. hamburgensis Walcott), two gastropods, ( Cyrtolites sp., Ophileta sp.), and a trilobite ( Asaphus sp.) ( Lindgren and Loughlin 1919 ). This meager...

... the Ninemile Formation pygidia. Family Nileidae Angelin, 1854 Genus Nileus Dalman, 1827 Asaphus ( Nileus ) armadillo Dalman, 1827 , by monotypy, from the Holen Limestone of Sweden. Nileus cf. N . hesperaffinis Ross, 1967 Figure 9 .6– 9 .11 cf...

... Asaphus homfrayi Salter, 1866 , from the Tremadocian of North Wales, by original designation. Meroi Arcerito et al. ( 2015 ) discussed the morphological variability of Asaphellus and, based mainly on material from El Perchel area, described in detail several...