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III.—Notes on the Appendages of Trilobites
Published online by Cambridge University Press: 01 May 2009
Extract
We are indebted for the Woodcuts accompanying this note to the courtesy of Dr. John Mickleborough, whose paper on the Locomotory Appendages of Trilobites we published in our February Number, p. 80.
They serve admirably to confirm the observations of Mr. E. Billings (published in the Geological Magazine for 1871, Vol. VIII. PI. VIII. pp. 289–294) on the appendages of Asaphus platycephalus. In Fig. 1, a, a, mark the position of the anterior pair of appendages; b, b, the 10th pair; c, the articulation between the carpus and propodos; d, the articulation between the propodos and dactylus; e, the lines to the letter e mark the position of the lamelliform ? branchiae beneath the pygidium.
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