The last fossil primate in North America, new material of the enigmaticEkgmowechashalafrom the Arikareean of Oregon

2015 ◽  
Vol 158 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Joshua X. Samuels ◽  
L. Barry Albright ◽  
Theodore J. Fremd
1991 ◽  
Vol 28 (10) ◽  
pp. 1553-1560 ◽  
Author(s):  
C. McGowan

New ichthyosaur material is reported from an Upper Triassic locality on Williston Lake, northeastern British Columbia. The paucity of ichthyosaurs from the Triassic of North America make this a potentially important site. An isolated forefin is described, which is unlike that of any Triassic species from North America but which compares closely with certain Lower Jurassic species from England and Germany. The new material suggests that the transition in the ichthyosaurian fauna at the close of the Triassic may have been less abrupt than was previously supposed.


2003 ◽  
Vol 77 (5) ◽  
pp. 844-862 ◽  
Author(s):  
Zhong-Qiang Chen ◽  
G. R. Shi ◽  
Li-Pei Zhan

Four new Early Carboniferous athyridid species in three genera, including one new genus, Bruntonathyris, are described from the Qaidam Basin, northwest China: Lamellosathyris qaidamensis, Bruntonathyris amunikeensis, Bruntonathyris? heijianshanensis, and Lochengia qinghaiensis. Based on the new material and also on published information, we also reviewed the taxonomic composition and the stratigraphic and paleogeographic distributions of the three genera. As a result, Lamellosathyris is considered to be indicative of late Famennian to Viséan age, originating in late Famennian in central North America and Armenia of Russia, respectively. Later, the genus appears to have two migratory directions: one branch rapidly dispersed over Mississippi Valley, Oklahoma, Texas and New Mexico of central North America in Tournaisian; alternatively, another branch from Armenia migrated westerly to Belgium, France, Spain, Britain, Ireland, via the Moscow Basin and Ural seaway, eastward to the Tienshan Mountains and Qaidam Basin of northwest China during the Tournaisian to Viséan, and easterly along the southern shelves of the Paleo-Tethys to Iran and western Yunnan of southwestern China in Tournaisian. Both Bruntonathyris and Lochengia are restrictedly Tournaisian to Viséan in age, and probably originated in the Qaidam Basin. Later, Bruntonathyris migrated easterly to South China and Japan, and westerly to Urals, Moscow Basin, Donetsk Basin and Britain; Lochengia migrated easterly to South China and westerly to the Urals seaway and the adjoined Russian Platform (i.e., both the Moscow and Donetsk Basins).


Zootaxa ◽  
2009 ◽  
Vol 2077 (1) ◽  
pp. 1-30 ◽  
Author(s):  
STEVEN V. FEND

A review of morphological characters for the western Nearctic genus Kincaidiana indicated that the two described species should be assigned to separate genera. Kincaidiana freidris Cook was transferred to a new genus, Altmanella. New material resembling A. freidris was obtained from many sites throughout western North America. Morphology of the male reproductive structures varied among populations, and the most distinctive morphological differences were accounted for by splitting the taxon into two species, which roughly corresponded to large scale regional patterns. Typical A. freidris occurred in several Pacific Coast drainages. Altmanella idahoensis n. sp., mostly associated with the Snake River drainage, was distinguished from A. freidris by shorter and less muscular atria and penial structures. A second new lumbriculid species with the same basic arrangement of reproductive organs was collected in southeastern North America, and was provisionally assigned to Altmanella. However, in contrast to the petiolate atria and large penial structures of A. freidris and A. idahoensis, Altmanella lenati n. sp. has tubular atria and simple male porophores.


2014 ◽  
Vol 51 (7) ◽  
pp. 682-700 ◽  
Author(s):  
Stephen R. Westrop ◽  
Alyce A. Dengler

Species of Deiracephalus Resser, 1935, are rare elements in most Guzhangian (upper Marjuman) trilobite faunas of Laurentian North America, and are characterized by striking cephalic spinosity that includes very long genal and occipital or preoccipital glabellar spines. Almost all previous reports of the genus have assigned sclerites to two species, Deiracephalus aster (Walcott, 1916) and Deiracephalus unicornis Palmer, 1962. However, new material from the Shallow Bay Formation of western Newfoundland and restudy of type material from the southern Appalachians show that as many as eight species are present, although not all of them are sufficiently well known to be formally named. Deiracephalus aster and D. unicornis are restricted to their respective holotypes from the Conasauga Formation of Alabama; new species from the Shallow Bay Formation are Deiracephalus narwhali, Deiracephalus rhinocerotis, Deiracephalus dynastoides, and Deiracephalus phanaeus. Deiracephalus unicornis, D. narwhali, D. rhinocerotis, and a poorly known species from Nevada all possess preoccipital glabellar spines, and form an informal “unicornis group” of species. This group occurs high in the traditional Crepicephalus Zone (latest Guzhangian) and offers a potentially important means of biostratigraphic correlation. Species with occipital spines are older than the unicornis group and extend down into the Cedaria Zone as used traditionally in North America.


Author(s):  
Justin Thomas McDaniel

This chapter looks at the rise of Buddhist museums in contemporary Asia. Curators at private and sometimes explicitly sectarian Buddhist museums have attempted to appeal to a wider audience and have abandoned particular sect’s rituals, liturgies, symbols, and teachings to promote a new vision of Buddhism without borders. This opening up of their collections, as well as the active acquisition of new material, demonstrates a particular type of Buddhist ecumenism – an ecumenism without an agenda. The multiple affective encounters these museums allow create ecumenical environments allow visitors to leisurely experience Buddhist distraction What follows are stories of curators, architects, and monks who favor display over dogma, curiosity over conversion, spectacle over sermon, and leisure over allegiance. Specially, Shi Fa Zhao’s Temple of the Buddha’s Tooth in Singapore, The Ryukoku University (Jodo Shinshu) Museum in Kyoto, and others are compared to Buddhist galleries at museums in Europe and North America.


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2639 ◽  
Author(s):  
Matthew R. Borths ◽  
Patricia A. Holroyd ◽  
Erik R. Seiffert

Hyaenodonta is a diverse, extinct group of carnivorous mammals that included weasel- to rhinoceros-sized species. The oldest-known hyaenodont fossils are from the middle Paleocene of North Africa and the antiquity of the group in Afro-Arabia led to the hypothesis that it originated there and dispersed to Asia, Europe, and North America. Here we describe two new hyaenodont species based on the oldest hyaenodont cranial specimens known from Afro-Arabia. The material was collected from the latest Eocene Locality 41 (L-41, ∼34 Ma) in the Fayum Depression, Egypt.Akhnatenavus nefertiticyonsp. nov. has specialized, hypercarnivorous molars and an elongate cranial vault. InA. nefertiticyonthe tallest, piercing cusp on M1–M2is the paracone.Brychotherium ephalmosgen. et sp. nov. has more generalized molars that retain the metacone and complex talonids. InB. ephalmosthe tallest, piercing cusp on M1–M2is the metacone. We incorporate this new material into a series of phylogenetic analyses using a character-taxon matrix that includes novel dental, cranial, and postcranial characters, and samples extensively from the global record of the group. The phylogenetic analysis includes the first application of Bayesian methods to hyaenodont relationships.B. ephalmosis consistently placed within Teratodontinae, an Afro-Arabian clade with several generalist and hypercarnivorous forms, andAkhnatenavusis consistently recovered in Hyainailourinae as part of an Afro-Arabian radiation. The phylogenetic results suggest that hypercarnivory evolved independently three times within Hyaenodonta: in Teratodontinae, in Hyainailourinae, and in Hyaenodontinae. Teratodontines are consistently placed in a close relationship with Hyainailouridae (Hyainailourinae + Apterodontinae) to the exclusion of “proviverrines,” hyaenodontines, and several North American clades, and we propose that the superfamily Hyainailouroidea be used to describe this relationship. Using the topologies recovered from each phylogenetic method, we reconstructed the biogeographic history of Hyaenodonta using parsimony optimization (PO), likelihood optimization (LO), and Bayesian Binary Markov chain Monte Carlo (MCMC) to examine support for the Afro-Arabian origin of Hyaenodonta. Across all analyses, we found that Hyaenodonta most likely originated in Europe, rather than Afro-Arabia. The clade is estimated by tip-dating analysis to have undergone a rapid radiation in the Late Cretaceous and Paleocene; a radiation currently not documented by fossil evidence. During the Paleocene, lineages are reconstructed as dispersing to Asia, Afro-Arabia, and North America. The place of origin of Hyainailouroidea is likely Afro-Arabia according to the Bayesian topologies but it is ambiguous using parsimony. All topologies support the constituent clades–Hyainailourinae, Apterodontinae, and Teratodontinae–as Afro-Arabian and tip-dating estimates that each clade is established in Afro-Arabia by the middle Eocene.


Zootaxa ◽  
2005 ◽  
Vol 1064 (1) ◽  
pp. 1 ◽  
Author(s):  
VASILY I. RADASHEVSKY

The spionid mudworm Polydora cornuta Bosc, 1802 (formerly Polydora ligni Webster, 1880) is redescribed based on museum and new material collected in temperate and subtropical zones worldwide. Previously unobserved features are noted, including arrangement of lateral ciliated organs on all chaetigers but 4 and 5, metanephridial organs and glandular pouches beginning from chaetiger 7. Larval morphology is described and illustrated based on material from Brazil. The larvae are characterized by middorsal vesiculate melanophores from chaetiger 3 or 4, dorsal paired melanophores band-shaped from chaetiger 3 and ramified from chaetiger 7 or 8, large ramified yellow chromatophores on ventral side from chaetigers 5–7, specific modified chaetae in notopodia of chaetiger 5, and hooks in neuropodia from chaetiger 7 not accompanied by any other kind of chaetae. Some differences from earlier descriptions of larvae from Europe and North America are highlighted. Consistent morphological differences between adults from distantly separated populations, as suggested in earlier studies, were not revealed and all the examined materials are referred to one species.


1999 ◽  
Vol 136 (2) ◽  
pp. 205-211 ◽  
Author(s):  
M. L. CASANOVAS ◽  
X. PEREDA SUBERBIOLA ◽  
J. V. SANTAFE ◽  
D. B. WEISHAMPEL

New dinosaur specimens from the uppermost Cretaceous of Spain represent the first record of a lambeosaurine hadrosaurid from Europe. This discovery, which consists of skull, mandible, and postcranial remains from the Tremp Basin (Lleida Province, Catalonia), is particularly unexpected because lambeosaurines are otherwise well known from western North America and central and eastern Asia. Originally named Pararhabdodon isonensis, a species previously regarded as a basal iguanodontian dinosaur, new material indicates that Pararhabdodon is in fact a primitive member of the lambeosaurine clade. The presence of lambeosaurines on the Iberian Peninsula at the very end of the Cretaceous period is likely due to vicariance rather than dispersal. The distribution of hadrosaurids suggests biogeographic differences across the European archipelago at the end of the Cretaceous.


2002 ◽  
Vol 76 (3) ◽  
pp. 408-423 ◽  
Author(s):  
Robert W. Scott

Of the 33 caprinid rudist taxa reported from Albian strata in North America, only eighteen can be recognized unequivocally because many of the earlier named species were based on incomplete, altered, and poorly described specimens that do not meet rigorous criteria of modern rudist taxonomy. New data on five older taxa, “Caprina” crassifibra Roemer, 1849; “Caprina” guadalupe Roemer, 1849; “Caprina” occidentalis Conrad, 1855; “Caprina” planata Conrad, 1855, and “Icthyosarcolites” anguis Roemer, 1888, show that these species cannot be compared to current rudist taxa nor identified with certainty and therefore they should not be used in biostratigraphic, paleoecologic, or biogeographic studies. Four other taxa are poorly known and should not be used until the types or new material can be studied. Six taxa are considered here to be junior synonyms. New material collected from Upper Albian strata in West Texas, the type area of Conrad's taxa, can be identified as Kimbleia albrittoni Perkins, 1961; Kimbleia capacis Coogan, 1973; Texicaprina vivari Palmer, 1928; and Mexicaprina cornuta Coogan, 1973. The ranges of these four taxa define three zones within Upper Albian carbonates in central and west Texas.


1986 ◽  
Vol 64 (3) ◽  
pp. 637-639 ◽  
Author(s):  
D. K. Cone ◽  
A. O. Dechtiar

Gyrodactylus katharineri Malmberg, 1964, G. lotae Gussev, 1953, and G. lucii Kulakovskaya, 1952 are reported for the first time from North American host fishes (Cyprinus carpio, Lota lota, and Esox lucius, respectively). The new material is described. Gyrodactylus katharineri is an introduced species that apparently arrived along with host shipments brought to North America from Europe during the last century. Gyrodactylus mizellei Kritsky and Leiby, 1971 may be a synonym of G. katharineri. Gyrodactylus lotae and G. lucii are endemic species with natural ranges that extend throughout freshwaters of Eurasia and North America.


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