WebbDataset GBIF Backbone Taxonomy Rank SPECIES Classification WebbThe genus Choffatirhynchia includes medium-sized rhynchonellids, that present a subtetrahedral to globose shell, with the dorsal valve more convex than the ventral valve, a subrectangular dorsal fold, and numerous and dense ribs covering the whole shell. Choffatirhynchia nov. gen. is described and characterized, together with the two species …
Early Cretaceous rhynchonellids of Dagestan: System, morphology …
Webbrhynchonellids were taxonomically more diverse as was previously supposed. Jakubirhynchia consistently occupies offshore, low-energy, micritic-rich habitats below storm wave base. It is the first reported Hettangian member of the family Basiliolidae and may bridge the gap between the Carnian Veghirhynchia and Early Jurassic basiliolids. WebbThe Rhynchonellida. Rhynchonellids look a bit like little nuts. Their hinges come to a point, a condition paleontologists call non-strophic. They are often ridged as shown here. The commisure, the line between the two valves or shells, is zig-zagged, as can be seen in the somewhat unusual asymmetric rhynchonellid Rhactorhynchia. The earliest ... google search control login
Late Devonian rhynchonellids (Brachiopoda) from the Junggar …
Webb7 jan. 2024 · All the Cretaceous asymmetrical rhynchonellids should not be identified as C. difformis. Among the most common misinterpretations, specimens of Cyclothyris … Webb13 aug. 2024 · Most of the punctate rhynchonellids settled along the northern coast of Gondwana. Only species of the genus Araratella Abramian, Plodowski and Sartenaer, … Webb1 jan. 1983 · The formations with dominating pelagic elementscontain monospecific populations of Rhynchonellids; when the benthic fauna is abundant, Rhynchonellids are more diversified. The migration of Platyterorhynchus from Northern America to Europe is in good agreement with the previous interpretations of the faunal distribution in these two … google search cox webmail