Journal of Systematic Palaeontology
Papers 580
1 page of 58 pages (580 results)
Published on Feb 6, 2019in Journal of Systematic Palaeontology2.31
Ali Soliman11
Estimated H-index: 11
(Tanta University),
Robert A. Fensome16
Estimated H-index: 16
(BIO: Bedford Institute of Oceanography)
The extinct organic-walled dinoflagellate cyst Duosphaeridium rugosum was first described from the Paleocene (Danian) of the southern USA. It has since been documented at several other localities around the world. Well-preserved specimens from the Danian of the Dakhla Formation in the Dababiya Corehole in southern Egypt, illustrated by light and scanning electron microscope images, reveal new morphological details, most notably parasutural features revealing the paratabulation. Detailed observat...
Published on Jan 24, 2019in Journal of Systematic Palaeontology2.31
Ercan Özcan12
Estimated H-index: 12
(ITU: Istanbul Technical University),
Simon F. Mitchell22
Estimated H-index: 22
(UWI: University of the West Indies)
+ 4 AuthorsAli Osman Yücel2
Estimated H-index: 2
(ITU: Istanbul Technical University)
Paleocene orthophragminids from the American bioprovince were studied from the Nonsuch Formation in Jamaica and the Salt Mountain Limestone in Alabama, the latter being the type locality of Discocyclina blanpiedi (Vaughan) and Discocyclina cookei (Vaughan). Species traditionally assigned to Athecocyclina Vaughan, Neodiscocyclina Caudri and Hexagonocyclina Caudri are redescribed and a new systematic classification of American orthophragminids is proposed based on the newly discovered microspheric...
Published on Feb 4, 2019in Journal of Systematic Palaeontology2.31
Fernando F. Garberoglio (CONICET: National Scientific and Technical Research Council), Raúl O. Gómez7
Estimated H-index: 7
(Facultad de Ciencias Exactas y Naturales)
+ 3 AuthorsGonzalo D. Veiga13
Estimated H-index: 13
(UNLP: National University of La Plata)
The limbed snake Najash rionegrina from the Cenomanian (early Late Cretaceous) of the La Buitrera Palaeontological Area (LBPA), northern Patagonia is a key taxon in any study of the origin and early evolution of snakes. The original concept of the taxon was based on the holotype and a number of referred specimens including an isolated partial skull; a conservative rebuttal argued this concept was too broad due to the lack of association between the holotype elements and the referred specimens. H...
Published on Jan 24, 2019in Journal of Systematic Palaeontology2.31
Ann F. Budd28
Estimated H-index: 28
(UI: University of Iowa),
James D. Woodell (UI: University of Iowa)+ 1 AuthorsJames S. Klaus15
Estimated H-index: 15
(UM: University of Miami)
Understanding evolutionary transitions in scleractinian corals is fundamental to predicting responses of coral reefs to climate change. We examine transitions between solitary and colonial corals in the fossil record, focusing on the Caribbean solitary reef coral Scolymia and members of the subfamily Mussinae. Fossil specimens are selected from a large well-documented collection of Neogene Caribbean corals, and a total of 23 species are distinguished using 15 morphological features. Ten of the 2...
Published on Jan 24, 2019in Journal of Systematic Palaeontology2.31
Cristianini Trescastro Bergue8
Estimated H-index: 8
(UFRGS: Universidade Federal do Rio Grande do Sul),
Simone N. Brandão10
Estimated H-index: 10
(UFRN: Federal University of Rio Grande do Norte),
Geise de Santana dos Anjos Zerfass2
Estimated H-index: 2
The present research assesses the significance of ostracods from the Rio Grande Rise for the understanding of the palaeoceanographical evolution of this important physiographical feature of the sou...
Published on Jan 24, 2019in Journal of Systematic Palaeontology2.31
Andrés Elgorriaga2
Estimated H-index: 2
Ignacio H. Escapa16
Estimated H-index: 16
N. Rubén Cúneo19
Estimated H-index: 19
Macrofossil impressions of caytonialean leaves and micro- and megasporangiate organs from the Early Jurassic Taquetren locality in Patagonia, Argentina, are described based on more than 300 hand specimens. Leaves of the organ-genus Sagenopteris are described using both discrete and continuous features allowing us to erect the species Sagenopteris trapialensis sp. nov. Associated microsporangiate organs of Caytonanthus type are the first recorded for South America and are characterized by a uniqu...
Published on Jan 15, 2019in Journal of Systematic Palaeontology2.31
Alison M. Murray18
Estimated H-index: 18
(U of A: University of Alberta)
Two cyprinid fishes from fossil deposits of Sumatra, Indonesia, were briefly described and named in 1876 as new species in extant genera. These taxa, despite being important early records for the family, have been excluded from later studies, probably because the cursory descriptions and lack of illustrations provided little data for other researchers. These two fish, Barbus megacephalus Gunther and Thynnichthys amblyostoma von der Marck, are here fully described and illustrated. They are both r...
Published on Jan 24, 2019in Journal of Systematic Palaeontology2.31
Wei Wang , Chun Li13
Estimated H-index: 13
(CAS: Chinese Academy of Sciences)
+ 1 AuthorsLijun Zhao (AMNH: American Museum of Natural History)
The Triassic eastern Tethyan faunas have continued to yield numerous specimens of marine reptile taxa in recent years. Nevertheless, compared with other sauropterygian clades, the diversity of placodonts in these faunas is low, and remains of this group are relatively rare in the fossil assemblages. Here, we report a new cyamodontoid specimen (ZMNH M8820) from the early Late Triassic of Guizhou, south-west China. This specimen is a nearly complete skeleton lacking only the forelimbs. It is disti...
Published on Jan 29, 2019in Journal of Systematic Palaeontology2.31
Jorge Morales23
Estimated H-index: 23
(CSIC: Spanish National Research Council),
Serdar Mayda10
Estimated H-index: 10
(Ege University)
+ 2 AuthorsTanju Kaya9
Estimated H-index: 9
(AMNH: American Museum of Natural History)