The brachymetopid trilobite Radnoria in the Silurian (Wenlock) of New York State and Arctic Canada

2005 ◽  
Vol 42 (12) ◽  
pp. 2087-2096
Author(s):  
Jonathan M Adrain ◽  
Denis K Tetreault
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
Arctic Canada ◽  
York State ◽  
Cape Phillips Formation ◽  
Three New Species

Radnoria bretti n. sp., from the Wenlock (Sheinwoodian) Rochester Formation of western New York State, is the best preserved and most completely known member of its genus. It provides the first definitive information on Radnoria's hourglass-shaped rostral plate, the first known hypostome of a Silurian member of the genus, demonstrates that Radnoria engaged in sphaeroidal enrollment, and reveals that early holaspid individuals had tubercles on the posterior thoracic axes and pygidial axial rings that were effaced with maturity. Three new species from the Wenlock of the Cape Phillips Formation of Nunavut are known from sparse material and are reported in open nomenclature. Together, the species greatly increase knowledge of Laurentian Silurian brachymetopids, which have until now been known from a single cranidium from the Wenlock of Arkansas.

A study in the tornoceratidae: the succession of tornoceras and related genera in the North American devonian

1965 ◽  
Vol 250 (763) ◽  
pp. 79-130 ◽  
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
Lateral Lobe ◽  
Evolutionary Trends ◽  
York State ◽  
The North ◽  
New Subgenus ◽  
Lower Frasnian ◽  
Shed Light

The species of Tornoceras , Parodiceras , Epitornoceras and Aulatornoceras in North America are described. The study provides an independent stratigraphical goniatite zonation, particularly for the New York State Devonian, and it also provides an analysis of allomorphis in Tornoceras . A discussion on the protoconch apparatus and the significance of the metamorphosis at the nepionic constriction in Tornoceras is given. For the Tornoceras stock descriptions are provided where possible of the ontogeny from protoconch to adult of species at eleven successive stratigraphical levels, and faunas at other levels are also described. Thus the successional ontogenies shed light on the phylogeny of the stock. Faunas at each level may be morphologically defined, but few consistently maintained evolutionary trends have been observed. Shell form seems particularly subject to independent, and probably phenotypic variation. Through the equivalents of the Middle Devonian to the lower Frasnian, protoconch width appears to increase progressively. Similarly the suture becomes more undulating, particularly with regard to the steepness of the ventrad face of the lateral lobe. Later species show reversion to early characters in these respects. The origin of Tornoceras from Parodiceras is argued, and it is considered that Tornoceras gave rise to all later members of the Tornoceratidae. A new subgenus, Linguatornoceras , is erected for Frasnian and lower Famennian tornoceratids with small lingulate lateral lobes. Seven new species and subspecies are described.

A NEW MACROSIPHUM SPECIES FROM NEW YORK STATE (HOMOPTERA: APHIDIDAE)

1966 ◽  
Vol 44 (6) ◽  
pp. 1085-1088 ◽  
Author(s):  
M. E. MacGillivray
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
York State ◽  
Fragaria Virginiana ◽  
Convallaria Majalis

The viviparous females and sexuales of Macrosiphum pechumani sp. n. are described from Convallaria majalis, Smilacina racemosa, Fragaria virginiana, Pyrola elliptica, and Hibiscus sp. This new species differs from other described Macrosiphum spp. known to me by possessing a pale body combined with black Cauda and siphunculi.

The first diploaspidid (Chelicerata: Chasmataspidida) from North America (Silurian, Bertie Group, New York State) is the oldest species of Diploaspis

2016 ◽  
Vol 154 (1) ◽  
pp. 175-180 ◽  
Author(s):  
JAMES C. LAMSDELL ◽  
DEREK E. G. BRIGGS
Keyword(s):  
New York ◽  
New Species ◽  
North America ◽  
New York State ◽  
Taxonomic Diversity ◽  
Single Specimen ◽  
York State ◽  
Upper Silurian ◽  
A New Species

AbstractA single specimen of a new species of the chasmataspidid Diploaspis Størmer, 1972 is described from the upper Silurian (Pridoli) Phelps Member of the Fiddlers Green Formation (Bertie Group) in Herkimer County, New York State, USA. Diploaspis praecursor sp. nov. is distinguished by the shape of the posterolateral margins of the buckler, which are drawn out into angular epimera, and by the lack of elongate tubercles on the postabdomen. This discovery increases the taxonomic diversity of the Bertie Group by extending the geographic extent of Diploaspididae into North America. D. praecursor pre-dates previously known species of Diploaspis by more than 10 million years.

Validity and composition of the Silurian trilobite genera Borealarges and Dicranogmus, with new species from the Canadian Arctic

2003 ◽  
Vol 40 (5) ◽  
pp. 749-763 ◽  
Author(s):  
Jonathan M Adrain
Keyword(s):  
New Species ◽  
Cladistic Analysis ◽  
Species Group ◽  
Reasonable Doubt ◽  
The Arctic ◽  
Arctic Canada ◽  
New Information ◽  
Cape Phillips Formation ◽  
New Material ◽  
Three New Species

New silicified material from Arctic Canada demonstrates that the lichid trilobite genera Borealarges and Dicranogmus, recently claimed to be synonyms, are independent groups with no close phylogenetic connection to one another. Dicranogmus has been known mainly from cranidia alone; prior association of librigenae and pygidia with the Arctic Canadian species D. skinneri has been queried. This association is correct beyond reasonable doubt, based on description of new material of both D. skinneri and a new species. Three new species of Borealarges are related to B. tuckerae Adrain 1994. Cladistic analysis supports the monophyly of this species group. Pending further new information, however, the group is retained within the genus Borealarges. The stratigraphic range of the species group is extended from the lower Wenlock (Sheinwoodian) to upper Ludlow (Ludfordian) by the discovery of a rare species in the Douro Formation of Cornwallis Island, Arctic Canada. New taxa from the Wenlock of the Cape Phillips Formation, Arctic Canada, include Dicranogmus wynni, Borealarges nicoae, B. warholi, and B. yulei.

BIOLOGICAL NOTES ON SOME OF OUR EASTERN ONTARIO HAPLOPTILIA SPECIES (LEPID.) WITH DESCRIPTIONS OF TWO NEW SPECIES

1933 ◽  
Vol 65 (7) ◽  
pp. 160-168 ◽  
Author(s):  
J. McDunnough
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
Field Work ◽  
York State ◽  
Two New Species ◽  
Field Notes ◽  
Eastern Ontario

During field work at Bobcaygeon, Ont., in the summers of 1931 and 1932 I paid particular attention to the collecting and breeding of Haploptilia larvae and was successful in securing considerably over a dozen species. As very little has been published on this interesting group apart from Heinrich's excellent treatment in Forbes' Lepidoptera of New York State (1924, Mem. 68, Cornell Univ. Agr. Exp. Sta. pp. 202-217) it has occurred to me that the publication of my field notes, combined with a photographic figure of the characteristic larval case pertaining to each species, might be of value to students.

The Pine Root-Collar Weevil, Hylobius radicis Buch., in Southern Ontario

1962 ◽  
Vol 94 (1) ◽  
pp. 11-17 ◽  
Author(s):  
R. J. Finnegan
Keyword(s):  
New York ◽  
New Species ◽  
New York State ◽  
The State ◽  
Pine Plantations ◽  
Southern Ontario ◽  
York State ◽  
Hylobius Pales ◽  
A New Species ◽  
Root Collar

Interest in this insect was first aroused by the reports of Felt (1926a, 1926b) and York (1933), who attributed injury to several species of pines in the State of New York to Hylobius pales (Hbst.). Later it became apparent that the injury reported was not caused by H. pales, but by a new species that Huchanan (1934) described as H. radicis. This insect was first reported in Canada at Angus, Ont. (Wallace, 1954), and has since become abundant in pine plantations totalling about 500 acres in Simcoe County. This County supports the principal infestations in Ontario, but other widely separated infestations have been reported near Sault Ste. Marie and from five plantations totalling 50 acres in Renfrew County. H. radicis is now known to be widely distributed. In addition to New York State and Ontario, the insect has been reported from Virginia, Massachusetts, Connecticut, Pennsylvania, Michigan, Minnesota, Wisconsin, and Manitoba.

FOUR MORE NEW SPECIES OF MEALYBUGS FROM NEW YORK STATE. (HEMIPTERA: KERMIDAE AND PSEUDOCOCCIDAE)

1938 ◽  
Vol 70 (8) ◽  
pp. 157-165 ◽  
Author(s):  
George J. Rau
Keyword(s):  
New York ◽  
New Species ◽  
Adult Female ◽  
New York State ◽  
York State ◽  
Hystrix Patula

Described from a series of specimens.Holotype deposited in my own collection.Paratypes in various institutional collections.Adult Female: In Life:—Enclosed in a tough, brownish-white, felted, elongate sac, on the underside of the leaves of Hystrix patula Moench and on several other undetermined species of grasses. Living insects removed from sacs are dark red, retaining that color in KOH.

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