Results 171 to 180 of about 13,310 (214)

Two new Aphids from Baltic Amber

Journal of the Washington Academy of Sciences., 1922
openaire   +2 more sources

First evidence of Limoniidae (Diptera: Nematocera) in French amber from Oise. [PDF]

Sci Rep
Kopeć K, Krzemiński W, Kania-Kłosok I, Syratt M, Nel A, Soszyńska A.   +5 more
europepmc   +1 more source

Beauty or the Beast? A Puzzling Modification of the Clypeus and Mandibles on the Eocene Ant. [PDF]

Insects
Zharkov D, Dubovikoff D, Abakumov E.
europepmc   +1 more source

Mid-Cretaceous sand fly (Psychodidae, Phlebotominae) illuminates early diversification of Old World fauna. [PDF]

Sci Rep
Kaczmarek S, Loyer M, Depaquit J, Krzemiński W, Soszyńska A.   +4 more
europepmc   +1 more source

A New Species of <i>Radula</i> (Radulaceae, Porellales) From Mid-Cretaceous Kachin Amber. [PDF]

Ecol Evol
Song X, Ye W, Wang Z.
europepmc   +1 more source

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The Composition of Succinite (Baltic Amber)

Nature, 1972
THE chemical composition of succinite (Baltic amber), its botanical origin, and methods of distinguishing it from other fossil resins, are long standing questions1, the third of which has been largely solved in recent years by infrared spectrometry2–4.
L. J. GOUGH, J. S. MILLS
exaly   +2 more sources

Correlations between baltic amber and Pinus resins

Phytochemistry, 1985
Abstract The composition of the acid fractions of four pine resins has been studied before and after an ‘ageing’ process. Correlations are established between Baltic amber and ‘aged’ Pinus halepensis resin.
Roberto Samperi
exaly   +2 more sources

Haematophagous Arthropods in Baltic Amber

Annales Zoologici, 2018
Haematophagous i.e. blood-feeding or blood-sucking arthropods described from Paleogene Baltic amber are reviewed and commented on. Arthropods feeding on blood from mammals and birds, and occasionally on reptiles and amphibians, are reported as inclusions in fossil resins dated back to the Lower Cretaceous.
Agata Pielowska, Elżbieta Sontag, Ryszard Szadziewski   +2 more
openaire   +1 more source

Studies on the allergenicity of Baltic amber

Contact Dermatitis, 1992
Baltic amber is a fossil resin deposited 36‐7 million years ago and one source may be the extinct tree (Pinus) succinifer. Palaeobotanical studies of amber have an extensive literature, but the aspect of allergenicity has not been addressed before.
A T, Karlberg, A, Boman, C, Lidén
openaire   +2 more sources

Photoluminescence of Baltic amber

Zeitschrift für Naturforschung B, 2018
Abstract Baltic amber shows a greenish photoluminescence upon UV illumination. When amber is dissolved in organic solvents such as ethanol, an emission spectrum is observed, which resembles that of pyrene. At higher concentrations, pyrene undergoes an aggregation, which shifts the emission to longer wavelength.
openaire   +1 more source