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	The British and Irish Graptolite Group - http://www.graptolites.co.uk/ Information and topical news about graptolites, and those scientists working on graptolites in the UK and Ireland
	Graptolites - http://www.premdesign.com/grapto.html Graptolites collected from the Athens Shale formation (Ordovician age) near Montevalo, Alabama.
	Graptolite Net - http://www.graptolite.net/ Links to graptolite and pterobranch pages, abstracts, articles, graptolite researchers.
	Professor Emeritus Alfred C. Lenz - http://www.uwo.ca/earth/people/faculty/emeritus/lenz.html Personal page of Professor Lenz whose research revolves around the study of Wenlock to Lower Devonian graptolites. List of publications, research and students.
	Pyritized Graptolites - http://gsa.confex.com/gsa/2002NE/finalprogram/abstract_31879.htm Pyritization and deformation of graptolites by Ch.M. Witkowski.

	Permian Pterobranch - http://www.graptolite.net/grapto/a1.html First find of a Permian rhabdopleurid (Graptolithoidea).
	Mastigograptus: An incertae sedis Graptolite - http://www.graptolite.net/Graptolites/Mastigograptus.html Diagnosis, distribution and images of the genus.
	100th Anniversary of Oliver Bulman's Birth - http://www.graptolite.net/Bulman.html Biography of an Authority on Graptolites.
	Affinities of Inocaulis - http://www.graptolite.net/Inocaulis.html Nature of the genera assigned to the graptolite order Inocaulida.
	Cortical Bandages in Orthograptus gracilis. - http://maxim.mierzejewski.biz/andres.html Images (SEM and LM) of the fundamental unit of cortex in graptolites.

	Rhabdopleura-like Fossil from the Silurian of Gotland. - http://www.mierzejewski.biz/rosicrucians/rhabdo_gotl.html An excellently preserved zooidal tube of a Silurian hemichordate closely related to the extant genus Rhabdopleura.
	Stolonoidea - http://www.graptolite.net/Stolonoidea.html Stolonoid graptolites discussed as rhabdopleurids.
	Dithecoid Graptolites (Dithecoidea) - http://www.graptolite.net/jaws/di Remarks on affinities of some graptolite-like fossils.
	Graptolites - http://www.graptolite.net/Graptolites/index.html Relationshipis among graptolite orders.
	Cystograptus: A Diplograptid Graptolite. - http://mierzejewski.republika.pl/cystograptus.html Diagnosis and illustrations of the genus Cystograptus Hundt, 1942.

	BSEM: a Tool for Graptolite Research - http://sztandary.graptolite.net/bsem.html Back-scattered electron microscopy technique applied to study graptolitic material - BSEM image of Psigraptus.
	Rhabdopleura graysoni Chapman, Durman & Rickards - http://www.sztandary.com/Graptolithoidea/rhabdopleura.html The Carboniferous rhabdopleurid graptolite closely resembling the extant species Rhabdopleura compacta Hincks.
	Roman Kozlowski (1889-1977). - http://rosicrucians.info/calmont/gonera.html Biographical note.
	Collagen in the Pterobranch Coenecium - http://www.graptolite.net/collagen.html Results of the amino-acid analysis of the skeleton of Rhabdopleura and Cephalodiscus.
	SEM Micrographs of Rhabdopleura compacta. - http://kulicki.mierzejewski.biz/compacta.html Three coenecia (two very young) from Stock Point, Plymouth.

	Cephalodiscus lutetianus (Graptolithoidea, Cephalodiscoidea) - http://www.countofcalmont.com/lutetianus.html The only fossil species of the genus Cephalodiscus.
	Pterobranchia: Classification of the Rhabdopleuroidea - http://pterobranchia.graptolite.net/Rhabdopleuroidea.html List of extinct and extant families, genera and species.
	Rhabdopleura kozlowskii - http://pterobranchia.graptolite.net/Rhabdopleura_kozlowskii.html Diagnosis, occurrence, images, and references of the species.
	Chaunograptus and the Dendroidea - http://www.graptolite.net/Chaunograptus.html Affinities of some alleged graptolite genera.
	Melanostrophus: An Enigmatic Hemichordate - http://www.graptolite.net/Melanostrophus.html A graptolite-like fossil from the Ordovician of Estonia and erratic boulders.

	Graptovermida - http://www.graptolite.home.pl/Graptovermida.htm Definition and nature of the Graptovermida, graptolites incertae sedis.
	Autothecal Morphs and Dormancy in an Ordovician Sessile Graptolite - http://organica.countofcalmont.com/morphs.html Description and SEM micrographs of normal and sealed thecal morphs in the camaroid graptolite Xenotheka klinostoma from the Ordovician of Öland, Sweden.
	Classification of the Extant Hemichordata - https://www.webdepot.umontreal.ca/Usagers/cameroc/MonDepotPublic/Cameron/Species.html A comprehensive list of extant hemichordate species with images of a few.
	Tetragraptus fruticosus - Ordovician Graptolite - http://www.lakeneosho.org/More4.html Material from the Bendigonian Series, Bendigo, Victoria, Australia.
	Graptolites - http://www.ammonite.free-online.co.uk/grapt.htm Photograph of several specimens of Monograptus colonus, one being magnified, from Silurian deposits at Ludlow, UK.

	Cyrtograptus murchinsoni - http://www.silurian.com/geology/fomf6.htm Information about the species; photo.
	Denis Bates Homepage - http://users.aber.ac.uk/alm/web/bateweb1.html (with Dr Nancy Kirk). Research interests, morphology of retiolitids, ultrastructure, mode of life, evolution.
	Piotr Mierzejewski: Count of Calmont - http://graptolite.home.pl/ A free graptolite researcher and a Rosicrucian Frater. Research interests, primarily in sessile graptolites and pterobranchs, and publications.
	William Berry - http://eps.berkeley.edu/development/view_person.php?uid=376&page=31 Professor, University of California, Berkeley, primarily teaching in environmental geology, climate change and paleoceanography. Provides details of research interests and graptolite publications.
	Pyritized Graptolites - http://www.graptolite.net/Rhaphidograptus_X-ray.html Radiographs of Rhaphidograptus toernquisti, Monograptus atavus and Pseudoclimacograptus undulatus with explanations of the salient features.

	Infrared Video Microscopy for the Study of Isolated Graptolites - http://sztandary.graptolite.net/IVR_melchin95.html Description of a new technique for studying chemically isolated graptolites.
	Graptolite Growth - http://www.notam02.no/~oyvindha/grapto.html Note on the mathematical model and simulation of dendroid graptolite growth.
	Graptolite Locomotion - http://www.stfx.ca/people/edemont/abstracts/mike.html A new model for graptoloid locomotion by M.J. Melchin and M.E. DeMont.
	Petalograptus minor - http://www.silurian.com/geology/fomf10.htm Photo of the graptolite species.
	Monograptid Graptolite: Lobograptus Urbanek, 1958 - http://www.republika.pl/mierzejewski/lobograptus.html Morphology and distribution of the Upper Silurian genus Lobograptus.

	Bernd-Dietrich Erdtmann - http://www.tu-berlin.de/fb9/palaeontologie/PersData/BErd.htm Homepage of a graptolite researcher (interests, publications, students).
	Graptolite Stolons Described as Remnants of Hydroids. - http://piotr.countofcalmont.com/Trimerohydra.html Isolated stolons of Koremagraptus-like graptolites were misinterpreted as remains of the 'chitinous' hydroids (4 images).
	Graptolites and Early Vascular Land Plants - http://microfossils.graptolite.net/tracheids.html Early Palaeozoic tracheid-like tubes, believed to be of vascular land plant origin, resemble fragments of graptolite stolons.
	The Enigmatic Encruster Chaunograptus - http://www.graptolite.home.pl/cagliostro/rosencreutz/encruster.htm Graptolite-like fossils from the Upper Ordovician of Ohio and Indiana. By J.M. St.John and M.A. Wilson.

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