TL;DR: A new trilobite fauna from Los Espejos Fonnation is described in this article, it has been collected in western slope of Cerro del Fuerte, Jachal Department.
Abstract: A new trilobite fauna from Los Espejos Fonnation is described in this paper; it has been collected in western slope of Cerro del Fuerte, Jachal Department. The following trilobites are described and illustrated: Calymene vallecitoensis n. sp.,Dalmanites cf. D. sudamericanas Benedetto y Martel, 1976; Dalmanites sp. 1; Dalmanites sp. 2; Leonaspis crenata Bruton, 1967; Leonaspis? sp., as well as many trilobites of subfamilies Calmoninae and Synphoriinae. On the other hand, the species Phacopsargentinus Thomas, 1905, whose morphology was partially known is redescribed.
TL;DR: The new genus Amazonaspis is assigned within the family Synphoriidae and Comparisons are made with other Silurian and Devonian synphoriids, and some paleobiogeographic inferences are presented.
Abstract: The revision of “Dalmanites” maecurua Clarke, 1890, from the Upper Lontra Member, Eifelian, Maecuru Formation, Para State, Amazon Basin, Brazil is presented. The new genus Amazonaspis is assigned within the family Synphoriidae. Comparisons are made with other Silurian and Devonian synphoriids, and some paleobiogeographic inferences are presented.
TL;DR: Sandford et al. as mentioned in this paper assigned 19 species within the Phacopidae, Dalmanitidae and Acastidae to the lower Silurian marine strata of central Victoria, Australia.
Abstract: Sandford, A.C. and Holloway, D.J. 2006. Early Silurian phacopide trilobites from central Victoria, Australia. Memoirs of Museum Victoria 63(2): 215–255. A diverse component of trilobite faunas in lower Silurian marine strata of central Victoria are members of the suborder Phacopina, here assigned to 19 species within the Phacopidae, Dalmanitidae and Acastidae. New genera are represented by the blind acastid Berylacaste berylae gen. et sp. nov. and the phacopid Ivops wallanensis gen. et sp. nov. Other new species are the phacopids Acernaspis georgei and Ananaspis kenleyi, and the dalmanitids Preodontochile springfi eldensis and Struveria? plinthourgos. Two previously described species, Ananaspis typhlagogus Opik, 1953 and Dalmanites athamas Opik, 1953 [= ʻDalmanitina (Eudolatites)ʼ aborigenum Opik, 1953], are revised. Other species are assigned to Bessazoon, Phacopidella? and indeterminate phacopid and dalmanitid genera. These trilobites are a signifi cant representation of early Silurian Phacopina on the world scale.
TL;DR: In this article, a new genus Amazonaspis is assigned within the family Synphoriidae, and a comparison with other Silurian and Devonian synphoriids is made with some paleobiogeographic inferences.
Abstract: Abstract The revision of “Dalmanites” maecurua Clarke, 1890, from the Upper Lontra Member, Eifelian, Maecuru Formation, Para State, Amazon Basin, Brazil is presented. The new genus Amazonaspis is assigned within the family Synphoriidae. Comparisons are made with other Silurian and Devonian synphoriids, and some paleobiogeographic inferences are presented.
TL;DR: In this article, five trilobite species from five genera: Helokybe, Harpidella, Baliozoma, Dalmanites and Richterarges were described in the Upper Ludlow Niewachlow graywackes.
Abstract: Five trilobite species, in that one new, have been described from five genera: Helokybe , Harpidella , Baliozoma , Dalmanites and Richterarges . They occur in the Upper Ludlow Niewachlow graywackes from the Niewach1ow Anticline in the northern part of Kielce. The species described represent the characteristic not known till present assemblage and they document the Upper Ludlow deposits