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Showing results for tags 'macrorhizodus'.
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From the album: Sharks
An early Lamnid (family that includes the modern great white and mako sharks) from Central Kazakhstan. Some consider this genus to be ancestral to Carcharodon or both Carcharodon and Isurus. The latter is a tempting hypothesis since molecular clock studies place the last common ancestor of the great white and makos in this time. -
No modern phylogenetic analyses for extinct lamniformes?
Macrophyseter posted a topic in Questions & Answers
Taxonomic debate over extinct lamniformes remains a big thing, but I've noticed that it seems like there hasn't been any studies that use modern phylogenetic techniques (i.e. maximum parsimony) to resolve issues with extinct taxa (i.e. Carcharodon, Isurus, Macrorhizodus, Otodus). Is there a reason for this absence, or perhaps I simply have not come across one that already exists? I suppose it's possible that dental characteristics alone as character codes for a phylogenetic matrix may not be viable...-
- carcharocles
- carcharodon
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