| Graptolite Working Group - An association of geologists, paleontologists, and others who have expertise in graptolites or an interest in their use in solving geological problems.
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| Graptolites - Graptolites collected from the Athens Shale formation (Ordovician age) near Montevalo, Alabama.
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| The British and Irish Graptolite Group - Information and topical news about graptolites, and those scientists working on graptolites in the UK and Ireland
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| Lenz Home - Personal page of Professor Emeritus Alfred C. Lenz. List of publications, research, students.
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| Graptolite. home 3.3 - Piotr Mierzejewski: research interests, abstracts of recent graptolite publications.
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| William Berry, Professor of Geology. - Research, recent graptolite publications.
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| Graptolite Growth - Note on the mathematical model and simulation of dendroid graptolite growth.
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| Graptolite Locomotion - A new model for graptoloid locomotion by M.J. Melchin and M.E. DeMont.
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| Denis Bates Homepage - (with Dr Nancy Kirk). Research interests, morphology of retiolitids, ultrastructure, mode of life, evolution.
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| Permian Pterobranch - First find of a Permian rhabdopleurid (Graptolithoidea).
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| Pyritized Graptolites - Pyritization and deformation of graptolites by Ch.M. Witkowski.
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| Barrie Rickards - Current graptolite projects; general information.
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| Graptolite Net - Links to graptolite and pterobranch pages, abstracts, articles, graptolite researchers.
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| Graptolite Home - General information about graptolites, based on Treatise on Invertebrate Paleontology (1970).
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| Cyrtograptus murchinsoni - Information about the species; photo.
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| Petalograptus minor - Photo of the graptolite species.
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| Dithecoid Graptolites (Dithecoidea) - Remarks on affinities of some graptolite-like fossils.
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| Stolonoidea - Stolonoid graptolites discussed as rhabdopleurids.
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| Graptolitha - Classification and phylogeny of graptolites.
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| Graptovermida - Definition and nature of the Graptovermida, graptolites incertae sedis.
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| Bernd-Dietrich Erdtmann - Homepage of a graptolite researcher (interests, publications, students).
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| Pyritized Graptolites - Three pyritized colonies (photo).
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| Classification of the Extant Hemichordata - List of species, genera and families.
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| Chaunograptus and the Dendroidea - Affinities of some alleged graptolite genera.
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| Affinities of Inocaulis - Nature of the genera assigned to the graptolite order Inocaulida.
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| Melanostrophus - an enigmatic hemichordate - A graptolite-like fossil from the Ordovician of Estonia and erratic boulders.
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| Tetragraptus fruticosus - Ordovician Graptolite - Material from the Bendigonian Series, Bendigo, Victoria, Austalia.
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| Rhabdopleura kozlowskii - Diagnosis, occurrence, images and references of the Jurassic species.
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| Pterobranchia: Classification of the Rhabdopleuroidea - List of extinct and extant families, genera and species.
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| Prídolí graptolites from the Iberian Peninsula: a review and new records. - Abstract. Authors: J.M. Piçarra, J.C. Gutiérrez_Marco, A.C. Lenz, and M. Robardet.
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| The enigmatic encruster CHAUNOGRAPTUS - Graptolite-like fossils from the Upper Ordovician of Ohio and Indiana. By J.M. St.John and M.A. Wilson.
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| Mastigograptus - an incertae sedis graptolite - Diagnosis, distribution, and images of the genus.
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| Cephalodiscus lutetianus (Graptolithoidea, Cephalodiscoidea) - The only fossil species of the genus Cephalodiscus.
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| 100th Anniversary of Oliver Bulman's Birth - Biography of an Authority on Graptolites.
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| Autothecal morphs and dormancy in an Ordovician sessile graptolite. - Description and SEM micrographs of normal and sealed thecal morphs in the camaroid graptolite Xenotheka klinostoma from the Ordovician of Öland, Sweden.
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| Graptolites and early vascular land plants. - Early Palaeozoic tracheid-like tubes, believed to be of vascular land plant origin, resemble fragments of graptolite stolons.
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| Graptolite stolons described as remnants of hydroids. - Isolated stolons of Koremagraptus-like graptolites were misinterpreted as remains of the 'chitinous' hydroids (4 images).
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| Cortical bandages in Orthograptus gracilis. - Images (SEM and LM) of the fundamental unit of cortex in graptolites.
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| SEM micrographs of Rhabdopleura compacta. - Three coenecia (two young) collected from Stoke Point, England, are illustrated.
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| Collagen in the pterobranch coenecium - Results of amino-acid analysis of the coenecium of Cephalodiscus and Rhabdopleura.
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| Rhabdopleura - like fossil from the Silurian of Gotland. - An excellently preserved zooidal tube of a Silurian hemichordate closely related to the extant genus Rhabdopleura.
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| Epibionts on Mastigograptus (Graptolithoidea, Mastigograptida). - An enigmatic organic-walled fossil twisted around stipes of the sessile graptolite Mastigograptus (Middle Ordovician).
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| Monograptid graptolite: Lobograptus Urbanek, 1958 - Morphology and distribution of the Upper Silurian genus Lobograptus.
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| Graptolites - Relationshipis among graptolite orders.
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| Cystograptus, a diplograptid graptolite. - Diagnosis and illustrations of the genus Cystograptus Hundt, 1942.
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| BSEM - a tool for graptolite research. - Back-Scattered Electron Microscopy technique applied to study graptolitic material - BSEM image of Psigraptus.
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| Rhabdopleura graysoni Chapman, Durman & Rickards - The Carboniferous rhabdopleurid graptolite closely resembling the extant species Rhabdopleura compacta Hincks.
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