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Re: Majungatholus: Apparent Cannibal
A few snippets from the paper:
"Data from three separate bonebeds indicate that _Majungatholus atopus_
regularly defleshed dinosaur carcasses. The main focus seems to have been
along the axial column, although appendicular elements such as the sauropod
pubis in quarry MAD93-18 also show evidence of concerted effort."
So _Majungatholus_ had a preference for sauropod sirloin and tenderloin.
"There is also indication that Majungatholus atopus fed upon the remains of
its own dead, and thus supplemented its diet via cannibalism."
However... "Whether _Majungatholus_ killed both individuals [of its own
species] and thus practiced intraspecific predation, or opportunistically
scavenged their remains, is unknown."
Thus, _Majungatholus_ may or may not have *targeted* living members of its
own species. (Conspecific predation would be indicated by re-healed scars
on _Majungatholus_ bones that were inflicted by _Majungatholus_ teeth but
were not fatal.)
Finally, as Rob Gay has mentioned once or twice on the DML:
The most celebrated example of a dinosaur cannibal is the Triassic theropod
_Coelophysis bauri_, ... Juvenile _Coelophysis_ bones traditionally
interpreted as an ingested meal may lie stratigraphically at least
partially below the rib cage of the proposed cannibal (as opposed to
within), and the volume of the purportedly ingested material may exceed
reasonable estimates of stomach capacity.
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