SCIENTIFIC PORTAL FOR ALL USERS INTERESTED IN PTEROBRANCHS AND GRAPTOLITES
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The world's longest graptolite?
David K. Loydell & Robert F. Loveridge
Geological Journal (2001) 36, 1, 55-57
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ABSTRACT:
"An incomplete specimen of Stimulograptus halli 1.45 m long is recorded from the Aberystwyth Grifts Formation north of
Clarach, western mid-Wales. This is the longest graptoloid graptolite known. Assuming a growth rate similar to that of
modern Rhabdopleura it lived for at least 25 years."
Visit related pages: A giant specimen of Monograptus sedgwicki | Large-sized graptolites
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