Web(1980, fig. 26) may be a bivalve, and MacKinnon (1980) has reported an unde-scribed bivalve from the Middle Cambrian of New Zealand. It is unlike either Pojetaia or Fordilla. Pojeta (1975) referred Fordilla to a new order of the Bivalvia, Fordilloida, and con-sidered it to be a very primitive member of the class. Jell (1980) placed Pojetaia in the Web14 Jul 2015 · Analyses of Upper Cambrian-Lower Ordovician trilobite species, Paleozoic crinoid genera, Jurassic bivalve species, and Cenozoic mammal species yield the following results: (1) The preservation probability inferred from stratigraphic ranges alone agrees with that inferred from the analysis of stratigraphic gaps when data on the latter are available.

Ammonites - British Geological Survey

WebFurthermore, range sizes have been shown to vary systematically over the geologic history of lineages (Foote 2007;Foote et al. 2007;Liow and Stenseth 2007;Liow et al. 2010; Tietje … Web7 May 2013 · We generated a Maastrichtian network from the bivalve dataset and used stratigraphic ranges from the Paleobiology Database to determine which genera survived … lakers salary 2021

Ranges of non-marine bivalves (after Eagar 1994).

Web14 Jul 2015 · Analyses of Upper Cambrian-Lower Ordovician trilobite species, Paleozoic crinoid genera, Jurassic bivalve species, and Cenozoic mammal species yield the … Web14 aragenitic bivalve genera hitherte only known from the Cenozoic (Heinberg, 1976, 1979 and in prep.). The stratigraphic range of genera present in the hardground is shown … WebStratigraphic range: Late Cretaceous ... Abundant bivalve fossils are found in the formation east of Big Bend National Park. Exposures in Hays County, Texas have yielded fossil remains of Pterodactyloidea, Ornithocheiroidea and Ornithocheiridae. Economic resources. lakers salary 2022