Jurassic - Lower Cretaceous lithostratigraphic nomenclature for the Danish Central Trough
نویسندگان
چکیده
منابع مشابه
Introduction and Paleontology of the Middle Tethys Ocean rudists in the Lower Cretaceous in Central Iran
This research for introduce and paleontology of Early Cretaceous Rudist in the Middle Tethys Ocean, stratigraphic section of the kalleh pahnoo has been selected from the Shahkouh Formation in Central Iran (Khor and Biabank region). The studied section consists of 120 m thin layer to massive limestone. Studies on 106 specimens collected and prepared from this section have led to the identific...
متن کاملNew Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic–Cretaceous Boundary
BACKGROUND Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during the latest Triassic, one at the Jurassic-Cretaceous boundary (JCB), and one (resulting in total extinction) at the Cenomanian-Turonian boundary...
متن کاملBrachiopods from Late Jurassic-Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard.
Late Jurassic-Early Cretaceous (Late Volgian-latest Ryazanian) rhynchonellate brachiopods are described from eight out of 15 hydrocarbon seep deposits in the Slottsmøya Member of the Agardhfjellet Formation in the Janusfjellet to Knorringfjellet area, central Spitsbergen, Svalbard. The fauna comprises rhynchonellides, terebratulides (terebratuloids and loboidothyridoids) and a terebratellidine....
متن کاملEnvironmental drivers of crocodyliform extinction across the Jurassic/Cretaceous transition
Crocodyliforms have a much richer evolutionary history than represented by their extant descendants, including several independent marine and terrestrial radiations during the Mesozoic. However, heterogeneous sampling of their fossil record has obscured their macroevolutionary dynamics, and obfuscated attempts to reconcile external drivers of these patterns. Here, we present a comprehensive ana...
متن کاملMass mutations of insects at the Jurassic/Cretaceous boundary?
Diverse fossil insect assemblages near the Jurassic/Cretaceous transition from the Shar-Teg in Mongolia comprise frequent deformed species. These (first known) mass fossil animal deformities, expressed as fusions of veins changing the wing geometry, probably represent heritable mutations. They accumulated as a result of a changed structure of selective pressure, and are unique in showing how in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Danmarks Geologiske Undersøgelse Serie A
سال: 1986
ISSN: 2597-2979,1395-3842
DOI: 10.34194/seriea.v12.7031