Didymograptus, fossil graptolite
The two 'tuning-fork' graptolite on this piece of Welsh Ordovician shale belong to the genus Didymograptus and have branches some some 5 cm in length with sawtooth-like thecae.
Size: 2619px × 1798px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: animal, background, black, david, dichograptidae, didymograptus, fossil, fossilised, graptolite, graptolithina, graptoloidea, hemichordata, invertebrata, invertebrate, lewis, ordovician, paleozoic, paul, phanerozoic, prehistoric, prehistory, rock, sedimentary, shale, shot, specimen, studio, studioshot, taylor, welsh
