A taxonomic revision of the Early Devonian dalmanitid trilobite Kasachstania Maksimova, 1972 from central Kazakhstan

2020 ◽  
Vol 94 (4) ◽  
pp. 681-695
Author(s):  
Enrique A. Randolfe ◽  
Juan José Rustán ◽  
Arnaud Bignon

AbstractThe dalmanitid trilobite Kasachstania Maksimova, 1972, previously reported from the Lower Devonian of Kazakhstan and North America (USA) and the upper Silurian–Lower Devonian of South America (Bolivia and Argentina), is revised. Kasachstania kasachstanica (Balashova in Maksimova,1968) and K. septicostata (Maksimova, 1968) are regarded as junior synonyms of the type species K. saryarkensis (Maksimova, 1960), all from the Lower Devonian of the type locality in central Kazakhstan (northern Balkhash). On the basis of a new diagnosis, K. ulrichi ulrichi (Delo, 1940) from the Emsian of the United States, K. ulrichi asiatica (Maksimova, 1968), K. pristina (Maksimova, 1968), and K. alperovichi Pour et al., 2019, from the Lower Devonian of Kazakhstan, K. andii (Kozłowski, 1923) from the upper Silurian–Lower Devonian of Bolivia, and K. gerardoi Edgecombe and Ramsköld, 1994, from the upper Silurian–Lower Devonian of Bolivia and Argentina are excluded from Kasachstania. This genus, represented only by K. saryarkensis and K. kiikbaica (Maksimova, 1968), is restricted to the Lower Devonian of central Kazakhstan, corresponding to the Balkhash–Mongolo–Okhotsk province in the paleobiogeographic context of the Old World Realm, instead of being nearly cosmopolitan as previously considered. In addition, we provide some remarks about Saryarkella Maksimova, 1978b, a monospecific dalmanitid genus largely overlooked although valid from the Emsian of the same area in central Kazakhstan.

1992 ◽  
Vol 66 (3) ◽  
pp. 530-531 ◽  
Author(s):  
J. G. Johnson ◽  
A. C. Lenz

The genus Plicoplasia Boucot, 1959 (type species P. cooperi Boucot, 1959), embraces certain Lower Devonian brachiopods of the subfamily Ambocoeliinae, family Ambocoeliidae. The geographic range of Plicoplasia includes North America (Eastern Americas Realm) and South America and South Africa (Malvinokaffric Realm).


2009 ◽  
Vol 83 (4) ◽  
pp. 588-596 ◽  
Author(s):  
John M. Malinky

Family Orthothecidae Sysoev, 1958 is herein emended to encompass only hyoliths that possess a very shallow longitudinal ventral concavity and a tightly rounded dorsum, resulting in a near-triangular to only slightly kidney-shaped cross section. Orthotheca Novak, 1886 is restricted to orthothecids that possess longitudinal ornamentation on the dorsum, with Cryptocaris suavis Barrande, 1872 now recognized as the type species of that genus. Based on the revised generic concept, orthothecids from the Lower Devonian (Emsian) Shriver Chert of northeastern Pennsylvania are here included within the genus as Orthotheca shriveri n. sp., making this the first occurrence of the genus in North America. The Orthothecida were a group of sessile, benthic hyoliths that ranged from Early Cambrian to Early Devonian. Their life habit appeared to have included filter-feeding. Their ability to retract the operculum into the shell when closed probably aided in preventing sediment influx, and the ventral furrow may have been an adaptation to differing degrees of firmness of the underlying substrate. Despite faunal linkages between the Devonian paleocontinents, the majority of orthothecid genera seem to be largely restricted to their type areas, although Orthotheca documented herein has eroded slightly their endemic character.


Zootaxa ◽  
2013 ◽  
Vol 3620 (4) ◽  
pp. 589-595 ◽  
Author(s):  
KATHERINE A. PARYS ◽  
STEVEN C. HARRIS

Nothotrichia Flint 1967 is a small genus of infrequently collected microcaddisflies known from Chile and Brazil in South America, Costa Rica in Central America, and the United States in North America. Previously known only from adult specimens, we provide the first description and illustration of a larva in the genus, the larva of N. shasta from California, USA. We provide characters to separate Nothotrichia from other similar genera and an updated key to larval Hydroptilidae modified from that of Wiggins (1996). Larval characters provide additional evidence for the phylogeny and classification of the genus, which we now place tentatively in tribe Ochrotrichiini (subfamily Hydroptilinae).


1970 ◽  
Vol 23 ◽  
pp. 258-270
Author(s):  
Adam Kubasik

At the turn of the nineteenth and twentieth century a large group of Galician Ruthenians emigrated to North America and the United States and Canada, South America - mainly to Argentina and Brazil. Sheptytsky visited North America in 1910. He met with Ukrainian Greek Catholic immigrant communities in the United States and Canada. In 1921, he visited the USA and Canada again. In 1922 he arrived to Argentina and Brazil. He did not conduct open political agitation. However, some of his speeches have an anti-Polish character.


PEDIATRICS ◽  
1983 ◽  
Vol 71 (6) ◽  
pp. 923-926
Author(s):  
Carol J. Baker ◽  
J. McLeod Griffiss

The age distribution of 126 infants and children with disseminated meningococcal disease hospitalized consecutively in Houston between January 1977 and June 1979, and between January 1981 and June 1981 was analyzed and compared with that in the United States as a whole and to that during outbreaks of group B disease in North America and epidemics of group C disease in South America. Eighty-one (64.3%) isolates from Houston cases were serogroup B and 37 (29.4%) were serogroup C Neisseria meningitidis. Children with serogroup C disease were significantly older than those with group B disease (P = .017). Of the children with serogroup B infections, 33% were less than 12 months of age and 8.6% were less than 3 months of age. Of those with serogroup C disease, only 2.7% were less than 3 months of age and the majority (73%) were more than 2 years of age. These age distributions are similar to those reported for the entire United States during endemic periods. In contrast, focal outbreaks of group B meningococcal infection occurred in populations that were significantly older (0.02 > P < .05). Similarly, epidemic disease in South America due to serogroup C strains also occurred in older children when compared with the occurrence of endemic group C disease in the United States (P = .02).


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
July Duque-Valencia ◽  
Norma R. Forero-Muñoz ◽  
Francisco J. Díaz ◽  
Elisabete Martins ◽  
Paola Barato ◽  
...  

Abstract Canine distemper virus (CDV) is the cause of a multisystem disease in domestic dogs and wild animals, infecting more than 20 carnivore and non-carnivore families and even infecting human cell lines in in vitro conditions. Phylogenetic classification based on the hemagglutinin gene shows 17 lineages with a phylogeographic distribution pattern. In Medellín (Colombia), the lineage South America-3 is considered endemic. Phylogenetic studies conducted in Ecuador using fragment coding for the fusion protein signal peptide (Fsp) characterized a new strain belonging to a different lineage. For understanding the distribution of the South America-3 lineage in the north of the South American continent, we characterized CDV from three Colombian cities (Medellín, Bucaramanga, and Bogotá). Using phylogenetic analysis of the hemagglutinin gene and the Fsp region, we confirmed the circulation of CDV South America-3 in different areas of Colombia. We also described, for the first time to our knowledge, the circulation of a new lineage in Medellín that presents a group monophyletic with strains previously characterized in dogs in Ecuador and in wildlife and domestic dogs in the United States, for which we propose the name “South America/North America-4” due its intercontinental distribution. In conclusion, our results indicated that there are at least four different CDV lineages circulating in domestic dogs in South America: the Europe/South America-1 lineage circulating in Brazil, Uruguay, and Argentina; the South America-2 lineage restricted to Argentina; the South America-3 lineage, which has only been reported in Colombia; and lastly an intercontinental lineage present in Colombia, Ecuador, and the United States, referred to here as the “South America/North America-4” lineage.


The Geologist ◽  
1861 ◽  
Vol 4 (11) ◽  
pp. 469-472
Author(s):  
Charles Carter Blake

One of the greatest and most significant laws which modern palæontology has unfolded to us, is that principle by which it is definitively ascertained that, as a general rule, the animals of the Post-Pliocene, and indeed all the later Tertiary ages, were restricted to the same great geographical provinces as their representatives in the existing fauna. Amongst the Pliocene Mammalia of South America, we find the same preponderance of the Edentata, the same family of prehensile-tailed Monkeys, and the same typical Llamas and Vicuñas, as we find in the present pampas of La Plata, forests of Brazil, or elevations of the Andes.But we also find animals which, from all our previous pre-conceived associations, we had considered peculiar to the old world. The Elephants, of which one species (E. Africanus) now exists in Africa, a second (E. Indicus) in India, and a third (E. Sumatranus) in Sumatra and Ceylon, apart from the extensive and widely-distributed evidences which we find of their fossil remains in Europe, India, China, and Australia, extended their geographical province in the later Tertiary age over the whole of North America. The species of elephant which we find in Siberia (E. primigenius) has also been found over the whole of the space lately marked on our maps as the United States. South of the 30th degree of N. Iatitude it however gives place to a totally different species of true Elephant (Elephas Texianus, Owen, E. Columbi? Falconer), the molars of which, by their less degree of complexity, were more adapted to triturate the soft succulent herbage of Texas and Mexico. Besides these true Elephants, there existed in North America many individuals of the genus Mastodon, to which the present communication more particularly alludes.


1987 ◽  
Vol 61 (5) ◽  
pp. 960-973 ◽  
Author(s):  
Jed Day

Large palaeotrochid gastropods of the genera Floyda Webster (1905a) and Turbonopsis Grabau and Shimer (1909) occur in the late Frasnian Lime Creek Formation of Iowa. Floyda concentrica was designated as the type species of Floyda by earlier workers (Webster, 1905a; Knight, 1941), but is a junior synonym of F. gigantea (Hall and Whitfield, 1873). Three of five species and subspecies of Floyda described from the Lime Creek (Floyda concentrica, F. concentrica multisinuata, and F. gigantea depressa) are considered synonyms of the type species F. gigantea; the fifth species, F. gigantea hackberryensis, is here reassigned to the closely related genus Turbonopsis. Both F. gigantea and T. hackberryensis are redescribed using the original types and additional hypotype material from the collections of Charles Belanski.Floyda, first known from late Givetian rocks of the Rhenish Slate Mountains in Germany, is widespread in the United States Midcontinent and western North America by early Late Devonian time. Turbonopsis was endemic to the Appohimchi Subregion of the Eastern Americas Realm prior to the Taghanic Onlap, and appears to have remained so until late Frasnian time when it migrated to western North America.Eustatic sea-level highstands during the Middle and Late Devonian are thought to have breached barriers to migration, allowing both Floyda and Turbonopsis to disperse by prevailing oceanic currents from the United States Midcontinent into western North America during the late Frasnian. The expected oceanic current patterns of the Middle and Late Devonian paleogeographic reconstructions of Heckel and Witzke (1979, figs. 3, 5) adequately account for the known distribution and dispersal of Devonian palaeotrochid gastropods.The Palaeotrochidae underwent extinction prior to the latest Frasnian. Floyda, Turbonopsis, and Westerna became extinct during the onset of the last eustatic deepening event prior to the close of the Frasnian. The extinction of the palaeotrochid gastropods as well as other invertebrate groups may have been the result of restriction or near elimination of shallow warm-water, well-oxygenated shelf habitats by the onlap of cold anoxic bottom waters prior to latest Frasnian time.


1872 ◽  
Vol 9 (101) ◽  
pp. 509-513
Author(s):  
James Hall

In the general classification of the Palæozoic Rocks of North America, while we have carefully compared and attempted to correlate them with the greater divisions of the Silurian, Devonian, and Carboniferous systems of Great Britain and the continent of Europe, we have still retained the local names of formations, which to a great extent were given in the Geological Survey of New York. These names, like English local names, indicate a locality or region where the strata are well shown, and the characteristic features of the formation better developed than in other places. Several of these local formations have thus been grouped together as representing certain stages in the systems of formations as recognized above.


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