Pterobranchia (Hemichordata)

Pterobranchia Sites:

Classification of the Extant Hemichordata Classification of the Extant Hemichordata: List of species, genera and families. (Pterobranchia) http://cluster3.biosci.utexas.edu/faculty/cameronc/Hemichordate.Species.html Class Pterobranchia Class Pterobranchia: General information. (Pterobranchia) http://faculty.washington.edu/bjswalla/Hemichordata/Pterobranchia/class%20pterobranchia.html SEM micrographs of Rhabdopleura compacta. SEM micrographs of Rhabdopleura compacta.: Three coenecia (two young) collected from Stoke Point, England, are illustrated. (Pterobranchia) http://kulicki.mierzejewski.biz/compacta.html Pterobranchia: Classification of the Rhabdopleuroidea Pterobranchia: Classification of the Rhabdopleuroidea: List of extinct and extant families, genera and species. (Pterobranchia) http://Pterobranchia.graptolite.net/Rhabdopleuroidea.html Collagen in the pterobranch coenecium Collagen in the pterobranch coenecium: Results of amino-acid analysis of the coenecium of Cephalodiscus and Rhabdopleura. (Pterobranchia) http://www.graptolite.net/collagen.html Rhabdopleura sp. Rhabdopleura sp.: A colony of Rhabdopleura showing extended and contracted zooids. (Pterobranchia) http://137.122.144.15/Thumbnails/HEMI001B-GIF.htm Cephalodiscus and Classification of Cephalodiscoidea Cephalodiscus and Classification of Cephalodiscoidea: List of species and genera of recent and fossil cephalodiscid pterobranchs. (Pterobranchia) http://Pterobranchia.graptolite.net/Cephalodiscoidea.html Cephalodiscus gracilis Cephalodiscus gracilis: Photos of a colony and individuals. (Pterobranchia) http://faculty.washington.edu/bjswalla/Hemichordata/Pterobranchia/cephalodiscus%20gracilis.html Cephalodiscus lutetianus (Graptolithoidea, Cephalodiscoidea) Cephalodiscus lutetianus (Graptolithoidea, Cephalodiscoidea): The only fossil species of the genus Cephalodiscus. (Pterobranchia) http://www.countofcalmont.com/lutetianus.html The earliest known pterobranch hemichordate The earliest known pterobranch hemichordate: Rhabdotubus johanssoni, described by S. Bengtson and A. Urbanek in 1986 from the early Middle Cambrian of Sweden, was recognized as the earliest known pterobranch hemichordate! (Pterobranchia) http://geocities.com/przedpotopowicz/index.html Rhabdopleura kozlowskii Rhabdopleura kozlowskii: Diagnosis, occurrence, images and references of the Jurassic species. (Pterobranchia) http://pterobranchia.graptolite.net/Rhabdopleura_kozlowskii.html