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Pterobranchia resources

Cephalodiscus lutetianus (Graptolithoidea, Cephalodiscoidea)

The only fossil species of the genus Cephalodiscus.

Cephalodiscus gracilis

Photos of a colony and individuals.

Class Pterobranchia

General information.

Rhabdopleura kozlowskii

Diagnosis, occurrence, images and references of the Jurassic species.

Pterobranchia: Classification of the Rhabdopleuroidea

List of extinct and extant families, genera and species.

Cephalodiscus and Classification of Cephalodiscoidea

List of species and genera of recent and fossil cephalodiscid pterobranchs.

SEM Micrographs of Rhabdopleura compacta.

Three coenecia (two young) collected from Stoke Point, England, are illustrated.

Collagen in the Pterobranch Coenecium

Results of amino-acid analysis of the coenecium of Cephalodiscus and Rhabdopleura.

Cephalodiscus densus Andersson, 1907 (Hemichordata, Graptolithoidea).

Zooid and coenecium morphology of a cephalodiscid pterobranch from Terra Nova Bay, Ross Sea.

Cephalodiscus graptolitoides Dilly, 1993.

This species, a probable extant graptolite (according to some researchers), is regarded as a living fossil.

The Oldest Known Cephalodiscus-like Hemichordate

Eocephalodiscus polonicus Kozlowski from the upper Tremadocian of Poland: pictures of the holotype, links.

First Occurrence of Rhabdopleura in North America

First fossil representatives of Rhabdopleura (Graptolithoidea: Rhabdopleuroidea) in North America are reported.

Pterobranchia

Information from Wikipedia on these worm-shaped animals.