scholarly journals First record of the North American cryptic invaderFerrissia fragilis(Tryon, 1863) (Mollusca: Gastropoda: Planorbidae) in the Middle East

2014 ◽  
Vol 60 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Federico Marrone ◽  
Murtada D. Naser ◽  
Gh. Yasser Amaal ◽  
Francesco Sacco ◽  
Marco Arculeo
Keyword(s):  
Middle East ◽  
North American ◽  
First Record ◽  
The North

Lower Devonian aulacopleuroidean trilobites from Oklahoma

1997 ◽  
Vol 71 (4) ◽  
pp. 703-712 ◽  
Author(s):  
Jonathan M. Adrain ◽  
Gerald J. Kloc
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
North American ◽  
Lower Devonian ◽  
First Record ◽  
The North ◽  
New Information ◽  
New Material

New aulacopleuroidean trilobites from the Lochkovian of Oklahoma include the otarionine Cyphaspis carrolli new species from the Haragan Formation, and the brachymetopid Cordania wessmani new species from the overlying Bois d'Arc Formation. Cyphaspis carrolli is the first record of the genus from the North American Devonian. It is a highly plesiomorphic species, dissimilar to contemporaries from Europe, but closely related to Silurian species from Northern Laurentia and England. Cordania wessmani had previously been interpreted as a possible sexual dimorph of Cordania falcata Whittington, 1960, but new material and information shows that the forms occur separately with no stratigraphic overlap. New information on trilobite occurrence in the Haragan and Bois d'Arc Formations does not support previous hypotheses of trilobite sexual dimorphism, but rather indicates the presence of distinct, stratigraphically successive faunas.

First record of Labyrinthus soraufi Kobluk from the southern Appalachians: Lower Cambrian Shady Dolomite, Virginia

1982 ◽  
Vol 19 (5) ◽  
pp. 1094-1098 ◽  
Author(s):  
David R. Kobluk
Keyword(s):  
North American ◽  
Lower Cambrian ◽  
First Record ◽  
Geographic Range ◽  
Southern Appalachians ◽  
Middle Cambrian ◽  
The North

Labyrinthus soraufi Kobluk 1979, previously known only from the upper Lower Cambrian Forteau Formation of southern Labrador, has been found within upper Lower Cambrian to lower Middle Cambrian Epiphyton mounds from the upper part of the Shady Dolomite in southwestern Virginia. This problematical fossil was a contributor to framework growth in both of its known occurrences. This find extends the geographic range of this fossil to include the southern Appalachians, and shows that L. soraufi is not a fossil unique to the Cambrian of Labrador but may possibly occur more widely through the North American Lower (and Middle?) Cambrian. The absence of archaeocyathids from the Epiphyton mounds in the Upper Shady Formation shows that L. soraufi was not restricted to archaeocyathid-bearing mounds or reefs.

First record of the Hirnantian (Upper Ordovician) δ13C excursion in the North American Midcontinent and its regional implications

2006 ◽  
Vol 143 (5) ◽  
pp. 657-678 ◽  
Author(s):  
STIG M. BERGSTRÖM ◽  
MATTHEW M. SALTZMAN ◽  
BIRGER SCHMITZ
Keyword(s):  
South Africa ◽  
Sea Level ◽  
North American ◽  
First Record ◽  
Sea Level Changes ◽  
Upper Ordovician ◽  
The North ◽  
Study Interval ◽  
First Time ◽  
North And South

The most prominent of the two major global δ13C excursions in the Ordovician, the Hirnantian δ13C excursion (HICE), which is previously recorded from the uppermost Ordovician in a few sections in Nevada, Quebec, Arctic Canada, Baltoscandia, Scotland and China, is documented for the first time from the North American Midcontinent. Samples through the Girardeau Limestone and Leemon Formation in Missouri and Illinois show elevated δ13C values of +4‰ to +5‰. Although not determined precisely, the beginning of the HICE is likely to be in the upper part of the Orchard Creek Shale, and it ends in the upper Leemon Formation. Being extraordinarily useful chronostratigraphically, the presence of the HICE makes it possible to provide a firm dating of the study interval, whose age has long been controversial. Comparison between the study sections and coeval HICE sequences in North America and Europe show striking similarities, especially in sea-level history, indicating that major local lowstands reflect eustatic sea-level changes. A comparison with Hirnantian diamictite successions in North and South Africa and Argentina suggests that these lowstands correspond to two major Gondwanan glacial episodes.

Intercontinental-wide consequences of compromise-breaking adaptations: the case of desert rodents

2016 ◽  
Vol 62 (3-4) ◽  
pp. 186-195 ◽  
Author(s):  
Burt P. Kotler ◽  
Joel S. Brown ◽  
Sonny S. Bleicher ◽  
Keren Embar
Keyword(s):  
North America ◽  
Middle East ◽  
North American ◽  
Species Coexistence ◽  
Middle Eastern ◽  
The North ◽  
Ecological Principles ◽  
Heteromyid Rodents ◽  
The Face ◽  
Pocket Mouse

Desert rodent assemblages from around the world provide convergent, but independent crucibles for testing theory and deducing general ecological principles. The heteromyid rodents of North America and the gerbils of the Middle East and their predators provide such an example. Both sets of rodents face predation from owls and vipers, but the North American species possess unique traits that may represent macroevolutionary breakthroughs: rattlesnakes have infra-red sensitive sensory pits, and heteromyids have cheek pouches. To test their significance, we brought together two gerbils (Middle East), two heteromyid rodents (a kangaroo rat and a pocket mouse; North America) in a common setting (a vivarium in the Negev Desert), and quantified the “opinions” of the rodents towards the North American sidewinder rattlesnake and the Middle Eastern Saharan horned viper and the foraging behavior of each in the face of these snake predators plus owl predators. Gerbils are fairly evenly matched in their anti-predator abilities, while the heteromyids differ widely, and these seem to match well with and may determine the types of mechanisms of species coexistence that operate in the communities of each continent. Evolutionary history, macroevolutionary traits, and risk management therefore combine to determine the characteristics of the organisms and the organization of their communities.

scholarly journals The first record of Stelidota geminata (Say, 1825) (Coleoptera, Nitidulidae) in Romania

2019 ◽  
Vol 62 (1) ◽  
pp. 57-60
Author(s):  
Melanya Stan
Keyword(s):  
North American ◽  
Near East ◽  
First Record ◽  
American Continent ◽  
Sap Beetle ◽  
Oriental Region ◽  
North American Continent ◽  
The North ◽  
Stelidota Geminata ◽  
First Time

The sap beetle, Stelidota geminata (Say, 1825) originates from the North American continent and was introduced in Europe, Oriental Region and in the Near East. It is recorded from Romania for the first time.

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