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POSSIBLE CELLULAR TISSUE IN AN ORDOVICIAN GRAPTOBLAST
P.R. Crowther, R.B. Rickards and A. Urbanek
Geological Magazine 1987, 124, 1, 67-72
 
 
---------An encysted portion of a crustoid stolotheca of Graptoblastoides sp. has revealed possible cellular tissue, but no
gross zooidal morphology. Two explanations are suggested: one regarding the cellular complex as remnants of entrapped
soft part; blastocrypt material.The celluar tissue is figured and described, and the opportunity is taken to review the
extent of knowlege with respect to graptolite soft parts, and to compare the structures described with features of
extant
Rhabdopleura species.
                                                      
Related pages:
On the nature and development of graptoblasts
Crustoid graptolites (Crustoidea)
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