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Taxonomy from PaleobioDB.org. Description of the genus by Südkamp 2017, p. 116: "Follicrinus is one of the largest crinoids in the Hunsrück Slate. The arms can be over 20 cm in length. The dicyclic conical cup was relatively small and as wide as high. The long, slender, uniserial arms divide three to four times isotomously and bear no armlets. The first branching occurs above the fourth or fifth primibranch. The stem is round.” References: Schmidt, W. E. (1934). Die Crinoideen des Rheinischen Devons. Teil I: Die Crinoideen des Hunsrückschiefer. Abhandlungen der Preussischen Geologischen Landesanstalt, N. F., 163, 1-149. Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.

Loriolaster was a slow-moving low-level epifaunal detritivore-suspension feeder. Taxonomy from Fossilworks.org. Description from Südkamp 2017, p. 132: " Loriolaster is related to Cheiropteraster and differs by the following features. The smooth skin forms a wide U-shaped area between the arms. The mouth frame consists of the mouth angle plates together with only the enlarged second ambulacrals. Loriolaster has wide ambulacrals and spoon like laterals. Their margin bears three rather short spines as well as one larger spine." Loriolaster gracilis is somewhat rarer than the more robust L. mirabilis. Identified by oilshale. References: W.M. Lehmann. 1957. Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160. Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.

Taxonomy from Fossilworks.org. Description from Südkamp 2017, p. 147:" The small holothurian has a cylindrical form consisting of a distinct oral region with surrounding tentacles, and at the other end an elongate body that is rounded distally. The lobate arrangement of the 25 plated tentacles, the large ovate madreporite plate (perforated plate for entering of water), and the weakly developed calcareous ring are primitive features among the holothurians. The ossicles of the body wall are numerous small granules underlain by small plate-like elements. In the basal part thorn-like elements are more abundant." Identified by oilshale using Südkamp 2017. References: Lehmann, W. M. (1958). Eine Holothurie zusammen mit Palaenectria devonica und einem Brachiopoden in den unterdevonischen Dachschiefern des Hunsrücks durch Röntgenstrahlen entdect. Notizblatt des Hessischen Landesamtes für Bodenforschung 86, p 81-86. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil, München.