ROM-42190 is an
osteoderm being almost spherical in shape and exhibiting a micropitted bone surface (Fig.
"In this case, we're very lucky in that it's not just the bones; we have all of the armour, the
osteoderm is preserved, we also have all the skin preserved and it is in three dimensions."
The prenarial portion of the cranium of a slendersnouted phytosaur (YPM VPPU 007920), with an associated
osteoderm and bone fragments, was found by PEO, Bob Salvia and A.
Then we assigned each isolated
osteoderm to one of the six regions using as criteria its symmetry, dimensions, texture, and thickness (Gillette and Ray, 1981; Castro-Azuara, 1997).
On display is an
osteoderm, or bony skin growth, of a Titanosaur, part of a sauroped group that reached the largest sizes and lived between 65,000,000 and 71,000,000 years ago.
Strahm and Schwartz (1977) primarily used a new character, the development of the
osteoderm canal system, to characterize the two nominal genera.
The only identified marine turtle bone came from XU8B--an
osteoderm (upper carapace or plastron) fragment weighing 21.2 g and representing 1.7% of the total bone assemblage by weight.
Osteoderm morphology in recent and fossil Euphractinae Xenarthrans.
Vickaryous M, Hall B (2004) Comparative study of
osteoderm development in Alligator mississippiensis and Dasypus novemcinetus.
The anterior ventral element associated with TMM 40146-6 bears a single row of large pits immediately posterior to a broad, flat region that would have passed dorsal to the
osteoderm immediately in front of it.
(2009): The titanosaur (Dinosauria: Sauropoda)
osteoderm record: review and first definitive specimen from India.