Graptolites
Links
Cortical bandages in Orthograptus gracilis.
http://maxim.mierzejewski.biz/andres.html
Images (SEM and LM) of the fundamental unit of cortex in graptolites.
SEM micrographs of Rhabdopleura compacta.
http://kulicki.mierzejewski.biz/compacta.html
Three coenecia (two very young)from Stock Point, Plymouth.
Collagen in the pterobranch coenecium
http://www.graptolite.net/collagen.html
Results of the amino-acid analysis of the skeleton of Rhabdopleura and Cephalodiscus.
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.
Monograptid graptolite: Lobograptus Urbanek, 1958
http://www.republika.pl/mierzejewski/lobograptus.html
Morphology and distribution of the Upper Silurian genus Lobograptus.
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.