Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Mena Schemm-Gregory"'
Autor:
MENA SCHEMM-GREGORY, JOSÉ M. PIÇARRA
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 119, Iss 3 (2013)
A new species of Astraelenia is described from ?Siegenian to Emsian strata of the Portalegre Syncline (Central Portugal). Astraelenia saomamedensis n. sp. differs in a smaller number of costae, a rather inconspicuous fold and sulcus, and larger and e
Externí odkaz:
https://doaj.org/article/d91f05853cd94ed5b9d58130aa5ee3b9
Autor:
MENA SCHEMM-GREGORY
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 117, Iss 1 (2011)
A new species of Cyrtospirifer is described from the Middle to Upper Givetian of the Western Sahara (Northwest Africa). Cyrtospirifer tindoufensis new species differs in its smaller number and coarser medial and flank plications and equibiconvex shel
Externí odkaz:
https://doaj.org/article/7512e1a81fee4c41a748bd5a7541a561
Autor:
Mena Schemm-Gregory
Publikováno v:
Journal of Paleontology. 88:708-718
A new method of analyzing the internal shell morphology (including the complete brachidium of internal molds) of articulated brachiopod shells through the use of serial sections and digital three-dimensional reconstruction is presented. The method in
Publikováno v:
Paläontologische Zeitschrift. 89:25-35
A new genus and species of a rhynchonellide brachiopod from the Jurassic of Jordan, Talexirhynchia kadishi gen. et sp. nov., is described. The specimens were collected from the Mughanniyya Formation (Callovian) of Wadi Zarqa from alternating clayston
Publikováno v:
Geoheritage. 5:107-122
The Geological Museum in Lisbon and the Science Museum in Coimbra are the institutions housing the oldest invertebrate palaeontological collections of Portugal. The Devonian brachiopod collections comprise three major units and include specimens from
Autor:
Mena Schemm-Gregory, James J. Zambito
Publikováno v:
Journal of Paleontology. 87:277-288
Brachiopods belonging toAmbocoeliaoccur ubiquitously in Middle and Upper Devonian strata of the northern Appalachian Basin. Originating during the Eifelian,Ambocoelia umbonatapersisted through numerous biocrises, but went extinct during the late Fras
Publikováno v:
Fossil Record, Vol 15, Iss 2, Pp 77-83 (2012)
Fossil Record 15(2): 77-83
Fossil Record 15(2): 77-83
Pyritized internal moulds of articulated shells of the Early Jurassic brachiopod taxon Nannirhynchia pygmaea were found in beds closely below the early Toarcian oceanic anoxic event in the Polymorphum Zone in Portugal. The material allows a detailed
Publikováno v:
Cretaceous Research. 34:257-267
A new terebratulid species, Hadrosia gracilis , from the Lower Cretaceous Rosablanca Formation in Central Colombia is described. The new method of three-dimensional reconstructions of the internal morphology of this taxon results in the subjective sy
Publikováno v:
Acta Palaeontologica Polonica. 57:191-204
Jurassic rhynchonellide brachiopods from the Jordan Valley are herein revised and new taxa are added to the faunal list. In this study of Jurassic rhynchonellides from Wadi Zarqa, northwestern Jordan, we recognize the following taxa: Eurysites rotund
Autor:
Mena Schemm-Gregory
Publikováno v:
Bulletin of Geosciences. :227-240