نتایج جستجو برای: barremian aptian

تعداد نتایج: 602  

Journal: :Cretaceous Research 2021

A new family of stephanoid wasps is established based on Cretaceous amber inclusions and rock imprints. Ohlhoffiidae fam. nov. comprises four species in three genera: Ohlhoffia robusta gen. et sp. nov., Myanmephialtites bashkuevi which are newly described figured from mid-Cretaceous northern Myanmar; Cretephialtites pedrerae Rasnitsyn & Ansorge, 2000, C.(?) hispanicus (Rasnitsyn Martínez-Delclò...

Journal: :Revista del Museo Argentino de Ciencias Naturales 2005

2004
Darren Naish David M. Martill David Cooper Kent A. Stevens

A single brachiosaurid sauropod cervical vertebra from the Wessex Formation (Barremian, Early Cretaceous) of the Isle of Wight is remarkable for its size. With a partial centrum length (i.e., excluding evidence of the anterior condyle) of 745 mm it represents the largest sauropod cervical reported from Europe and is close in size to cervical vertebrae of the giant brachiosaurid Brachiosaurus br...

2017
Sibelle Maksoud Bruno Granier Dany Azar

Harlanjohnsonella annulata Elliott in Granier & Deloffre, 1993, non 1968, was originally described from Cenomanian strata in Serbia. Herein, we report its first occurrence outside the type area, i.e., in Lebanon, and in older strata, i.e., earliest Bedoulian or Late Barremian in age. Our specimens are compared with topotypic material. The species was recently revised by Radoičić & Schlagintweit...

Journal: :Journal of Iberian Geology 2021

Abstract The facies and clay mineral study of clay/marl-rich levels from the Torrelapaja Formation (latest Hauterivian–early Barremian, NW Iberian Range, NE Spain) allowed to establish palaeoclimatic palaeoenvironmental conditions under they were generated. muddy pisoids contained therein two logs sampled studied by X-ray diffraction optical electron microscopy. A similar mineralogical upwards ...

2010
Darren Naish DARREN NAISH

Saurischian dinosaurs were pneumatic animals. The presence of invasive skeletal foramina leading to large internal chambers within the skeleton strongly indicate the presence of avian-style skeletal pneumaticity of the skeleton in sauropodomorphs and non-avian theropods. While the hypothesis of skeletal pneumaticity has undergone a renaissance in recent years, it was initially promoted during t...

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