Upper cretaceous Meridionally costellate Hedbergellids: The genus Meridionalla El-Nakhal, 1982 vs. The genus Costellagerina petters, El-Nakhal and Cifelli, 1983
Articolo
Data di Pubblicazione:
2000
Citazione:
Upper cretaceous Meridionally costellate Hedbergellids: The genus Meridionalla El-Nakhal, 1982 vs. The genus Costellagerina petters, El-Nakhal and Cifelli, 1983 / M.R. Petrizzo, I.P. Silva. - In: JOURNAL OF FORAMINIFERAL RESEARCH. - ISSN 0096-1191. - 30:4(2000), pp. 306-309.
Abstract:
The two genera, Meridionalla El-Nakhal, 1982 and Costellagerina Petters, El-Nakhal and Cifelli, 1983, both erected to accommodate all the pre-Campanian meridionally costellate species, are discussed after comparison with the holotypes of the type species. Observations clearly indicate that Costellagerina is the appropriate genus, while the genus Meridionalla is inappropriate because its type species, Hedbergella murphyi Marianos and Zingula 1966 does not possess the textural ornamentation diagnostic for the genus.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Microbiology
Elenco autori:
M.R. Petrizzo, I.P. Silva
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