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Camarasauromorpha

Macronarians
Temporal range: Middle JurassicLate Cretaceous, 168–66 Ma
Macronaria scrubbed enh.jpg
Several macronarian sauropods
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Neosauropoda
Clade: Macronaria
Wilson & Sereno, 1998
Subgroups

See text.


See text.

Macronaria is a clade of sauropod dinosaurs from the Middle Jurassic (Bathonian) to Late Cretaceous Periods of what are now North America, South America, Europe, Asia, Africa and Australia. The name means 'large nostrils' (from scientists' reinterpretation of Greek makros, 'long,' as 'big,' and Latin nares, 'nostrils'), in reference to the large nasal openings high on the head that probably supported fleshy resonating chambers. Macronaria consists of a single main group, Titanosauriformes, along with several more basal taxa. Titanosauriformes in turn contains the brachiosaurids and the titanosaurians and is one of the largest sauropod groups, which also contains some of the longest, tallest and most massive dinosaurs of all time.

Taxonomy after Mannion et al. (2013) and D'Emic (2012) unless otherwise noted.

The cladogram below follows José Luis Barco Rodríguez (2010).


Camarasaurus

Galvesaurus

Phuwiangosaurus

Aragosaurus

Tastavinsaurus

Venenosaurus

Brachiosaurus

Euhelopus


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Wikipedia

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