Inferring ancestral range reconstruction based on trilobite records: a study-case on Metacryphaeus (Phacopida, Calmoniidae). [PDF]
Sci Rep, 2018 AbstractMetacryphaeus is a calmoniid trilobite genus from the Devonian Malvinokaffric Realm, exclusive to the Gondwanan regions. It includes eleven species, which are for the first time included here in a single phylogenetic analysis. The resulting hypotheses establish relations among the Metacryphaeus species with few ambiguities, also suggesting the ...
Carbonaro FA +4 more
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Metacryphaeus rotundatus, um Novo Elemento da Fauna de Trilobites Calmoniidae (Phacopida), da Formação Ponta Grossa (Devoniano), Bacia do Paraná, Brasil [PDF]
Geologia USP. Série Científica, 2008 Trilobites Calmoniidae (Delo, 1935) constituem o grupo de Phacopida mais abundante e diversificado do registro fóssilda Formação Ponta Grossa, Devoniano, Sub-bacia Apucarana.
Sabrina Pereira Soares +2 more
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Ameghiniana, 2016 Abstract. Calmoniid trilobites of the “Metacryphaeus tuberculatus group” occur in many Devonian localities within the Malvinokaffric Realm. In the Parnaiba Basin, in northeastern Brazil, the group is represented by Metacryphaeus tuberculatus Kozlowski, 1923, and M.
Van Enck Meira, Felipe +3 more
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The occurrence of Phacopida trilobites from Pimenteira Formation at João Costa, Piauí, Brazil [PDF]
Geologia USP. Série Científica, 2013 The marine macroinvertebrate fossils from the Devonian of the Parnaíba Basin are among the most diverse of Paleozoic of Brazil. In recent years, most revisions on these fossils involved trilobites from the Pimenteira and Cabeças formations, in the ...
Juliana de Moraes Leme +3 more
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Revisão sistemática e paleobiogeográfica de Trilobitas Phacopida (Homalonotidae e Calmoniidae) do Devoniano das Bacias do Parnaíba e Amazonas, Brasil [PDF]
Revista Brasileira de Paleontologia, 2017 openaire +2 more sources
Revisão sistemática dos Calmoniidae (Trilobita, Phacopida) da Formação Ponta Grossa, Devoniano, Bacia do Paraná, Brasil [PDF]
, 2022 openaire +1 more source
Systematics and biogeography of the “Malvinella group,” Calmoniidae (Trilobita, Devonian)
Journal of Paleontology, 1991Phylogenetic parsimony analysis forms a basis for classification of the Siegenian–Eifelian “Malvinella group,” a monophyletic taxon within the “Metacryphaeus group” of the family Calmoniidae. Fifty-one exoskeletal characters for Metacryphaeus Reed and 12 taxa of the “Malvinella group” yield a shortest length cladogram with a consistency index of 0.51 ...
Bruce S. Lieberman +2 more
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A re-examination of the trilobite Baniaspis globosa Destombes (Phacopina) from the Ashgill of the Anti-Atlas (Morocco) shows that it has several derived characters which allow us to classify it in the family Calmoniidae. Calmoniids were characteristic members of the Malvino-Kaffric province during the Lower Devonian. Hence we regard the origins of this
JACQUES Destombes ET, JEAN-LOUIS Henry
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Phylogenetic parsimony analysis was used to classify the Siegenian–Eifelian “Metacryphaeus group” of the family Calmoniidae. Thirty-eight exoskeletal characters for 16 taxa produced a shortest-length cladogram with a consistency index of 0.49. A classification based on retrieving the structure of this cladogram recognizes nine genera: Typhloniscus ...
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