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What is Brachiosauridae?

Pronunciation: BRAK-ee-oh-SOR-uh-day
Author: Riggs
Year: 1904
Etymology: Brachiosaurus + Greek "idae" (family)
Locomotion: Quadrupedal (4 legs)
Synonyms: None known
[Taylor, 2009]Definition
All taxa more closely related to Brachiosaurus altithorax than to Saltasaurus loricatus.
It was first defined in 1998 by Wilson and Sereno as "all titanosauriforms more closely related to Brachiosaurus than to Saltasaurus" and by Sereno in 2005 online as "the most inclusive clade containing Brachiosaurus brancai but not Saltasaurus loricatus, Euhelopus zdanskyi and Camarasaurus lentus". But the phylocode dictates that species rather than genera be used as group anchors, which rules out the former definition as it only uses generic names. Plus, where the group name is based on a generic name (in this case Brachiosauridae, named after Brachiosaurus), the species must also be the name-bearer of that genus, which rules out the latter definition because Brachiosaurus brancai was recently renamed Giraffatitan.
About
Apologies for this terse entry. We're working on adding more details.
In the meantime click here to search Dinochecker for brachiosaurids.
Etymology
Brachiosauridae is derived from the Greek "brachios" (arm), "sauros" (lizard) and "idae" (family), referring to their very long front legs (arms) and their relationship to Brachiosaurus - the original arm lizard.
Relationships
References
• Riggs E.S. (1903) "Brachiosaurus altithorax, the largest known dinosaur".
• Carpenter K. and Currie P.J. (1992) "Dinosaur Systematics: Approaches and Perspectives".
• Taylor M.P. (2009) "A re-evaluation of Brachiosaurus Altithorax (Riggs, 1903) and its generic seperation from Giraffititan Brancai (Janensch, 1914)".
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To cite this page:
Atkinson, L. "DinoChecker FAQ entry :: What is Brachiosauridae?"
http://www.dinochecker.com/dinosaurfaqs/what-is-brachiosauridae›. Web access: 25th Jun 2017.
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