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A 2015 study of the necks of Apatosaurus and Brontosaurus found many differences between them and other diplodocids, and that these variations may have shown that the necks of Apatosaurus and Brontosaurus were used for intraspecific combat. [16] Various uses for the single claw on the forelimb of sauropods have been proposed.
The scientists developed a statistical method to more objectively assess differences between fossil genera and species and concluded that Brontosaurus could be "resurrected" as a valid name. They assigned two former Apatosaurus species, A. parvus, and A. yahnahpin , to Brontosaurus , as well as the type species B. excelsus . [ 3 ]
Since Apatosaurus was the earlier name, Brontosaurus should be considered a junior synonym of Apatosaurus. Because of this, Riggs recombined Brontosaurus excelsus as Apatosaurus excelsus . [ 25 ] Despite Riggs' publication, Henry Fairfield Osborn , who was a strong opponent of Marsh and his taxa, labeled the Apatosaurus mount of the American ...
The world's most iconic dinosaur -- and the largest to ever roam the earth -- is finally getting some respect from science. We were all taught to identify the long-necked Brontosaurus through ...
Apatosaurus laticollis Marsh, 1879 Nomen dubium [29] Marsh: 1879 Apatosaurinae United States: Brontosaurus excelsus Marsh, 1879: Valid Marsh: 1879 Apatosaurinae United States: Known as Apatosaurus excelsus from 1903 to 2015 [29] Camarasaurus leptodirus Cope, 1879 Subjective junior synonym of Camarasaurus supremus [31] Cope: 1879 Camarasauridae ...
What Cut of Beef Is Stew Meat? Stew meat usually consists of the inexpensive cuts of beef with tough connective tissue. Think: chuck roast and bottom round.
The plus symbol ("+") between taxa indicates the given taxa is a node-based clade, defined as comprising all descendants of the last common ancestor of the "added" taxa. The greater-than symbol (">") indicates the given taxon is a stem-based taxon, comprising all organisms sharing a common ancestor that is not also an ancestor of the "lesser ...
The government agency is tightening its standards for "healthy" claims. And for the first time in 30 years, its labeling rules will be updated to reflect new nutrition standards.