Ankylosaurinae
Ankylosaurinae is a subfamily of ankylosaurid dinosaurs, existing from the Early Cretaceous about 105 million years ago until the end of the Late Cretaceous, about 66 mya. Many genera are included in the clade, such as Ankylosaurus, Pinacosaurus, Euoplocephalus, and Saichania.
Ankylosaurines | |
---|---|
Skeleton of Scolosaurus thronus, once referred to Euoplocephalus. Royal Tyrrell Museum of Palaeontology | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Order: | †Ornithischia |
Family: | †Ankylosauridae |
Subfamily: | †Ankylosaurinae Brown, 1908[1] |
Genera[1] | |
|
Features
Ankylosaurines are defined as being closer relatives to Ankylosaurus than to Shamosaurus.[2]
Diagnostic features of ankylosaurines include the nuchal shelf that obscures the occiput in dorsal view, and the quadrate condyle which is obscured lightly by the quadratojugal boss.[2]
Phylogeny
The following cladogram is based on the 50% majority rule phylogenetic analysis of Arbour & Currie (2015):[1]
Ankylosaurinae |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
gollark: 1984 is actually part of the English GCSE course at my school (and/or exam board or whatever, not sure how that works). It's amazing how picking apart random bits of phrasing or whatever for hours on end ruin your enjoyment of a work.
gollark: Vaguely relatedly I think 1984 is entering the public domain next year. Copyright lasts for an excessively long time in my opinion.
gollark: Okay, but if you're talking about real-world examples I don't see why it's remotely relevant to say that the author of a book vaguely relating to those real-world examples believed X.
gollark: But why do his *beliefs* actually matter?
gollark: No, I mean I don't see how talking about Orwell's beliefs is relevant at all.
References
- Arbour, Victoria M.; Currie, Philip J. (2015). "Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs". Journal of Systematic Palaeontology. 14 (5): 1. doi:10.1080/14772019.2015.1059985.
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004). The Dinosauria. Berkeley, CA and Los Angeles, CA and London, England: University of California Press. pp. 389, 861. ISBN 0-520-24209-2. Retrieved April 9, 2010.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.