Results 141 to 150 of about 524 (160)
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Sharks of the Order Carcharhiniformes

Copeia, 1989
John D. McEachran, L. J. V. Compagno
openaire   +2 more sources

Enameloid microstructure of the serrated cutting edges in certain fossil carcharhiniform and lamniform sharks

Microscopy Research and Technique, 2010
AbstractThe triple‐layered enameloid organization of neoselachian teeth has proven to be a reliable systematic character of the group. This study uses scanning electron microscopy to investigate the orientation of the parallel enameloid bundles in the area of the serrated cutting edges in certain fossil elasmobranchs.
openaire   +2 more sources

A taxonomic revision of the catshark genus Haploblepharus Garman 1913  (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)

Zootaxa, 2007
This paper examines the alpha level taxonomy of the genus Haploblepharus Garman, 1913 (Chondrichthyes; Scyliorhinidae). Three species are endemic to South Africa, with one species occurring in Namibia and South Africa. Haploblepharus pictus exhibits considerable colour variation which has led to some confusion between that species and H.
openaire   +2 more sources

LAMNIFORM AND CARCHARHINIFORM SHARKS OF THE WECHES FORMATION, NACOGDOCHES COUNTY, TEXAS

Geological Society of America Abstracts with Programs, 2020
Jessica L. O'Neall   +2 more
openaire   +1 more source

Extensive paraphylies within sharks of the order Carcharhiniformes inferred from nuclear and mitochondrial genes

Molecular Phylogenetics and Evolution, 2005
Guillaume Lecointre, Samuel P Iglesias
exaly  

The extinct catshark Pachyscyllium distans (Probst, 1879) (Elasmobranchii: Carcharhiniformes) in the Pliocene of the Mediterranean Sea

Neues Jahrbuch Fur Geologie Und Palaontologie - Abhandlungen, 2020
Andrea Di Cencio   +2 more
exaly  

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