X-Nico

unusual facts about cladistic analysis



Nepenthes aristolochioides

In 2001, Charles Clarke performed a cladistic analysis of the Nepenthes species of Sumatra and Peninsular Malaysia using 70 morphological characteristics of each taxon.


see also

Araripesaurus

In 2000 Kellner reassessed the genus and concluded that precisely because of such a lack of autapomorphies (unique characters), it could not be synonymised with Santanadactylus and gave its position after a cladistic analysis as close to Anhangueridae, more derived than Istiodactylus.

Coeluridae

In 2003, O.W.M. Rauhut, using a cladistic analysis, found Coeluridae to include Coelurus (Late Jurassic, North America), Compsognathus (Late Jurassic, Europe), Sinosauropteryx (Early Cretaceous, Asia) and an unnamed Compsognathus-like form (Early Cretaceous, South America; this dinosaur has since been placed in the new genus Mirischia).

Nesoenas

Recent cladistic analysis of mtDNA cytochrome b, cytochrome c oxidase subunit I and NADH dehydrogenase subunit 2, as well as nuclear β-fibrinogen intron 7 sequence data, combined with a distinct morphology and behaviour, suggest that the genus is valid but not monotypic.