Melonite granulatus Crinoid Calyx Fossil

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 39909 Specimen GUID:     http://n2t.net/ark:/65665/36ce242a9-26bb-4138-8ab4-fccdd1ce4954 Photographer Suzanne McIntire. Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution

Melonite granulatus (Troost, 1850) crinoid calyx fossil described in A Critical Summary of Troost's Unpublished Manuscript on the Crinoids of Tennessee by Elvira Wood 1909. This crinoid was found in Cumberland Gap Claiborne County Tennessee USA (Mississippian Period). It was assigned U.S. National Museum number 39909 and identified as a holotype.While fossil is described on pages 107-108, no explanation as to why no illustration was provided. 

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 39909 Specimen GUID:     http://n2t.net/ark:/65665/36ce242a9-26bb-4138-8ab4-fccdd1ce4954 Photographer Suzanne McIntire. Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution

Cleiocrinus tessellatus Crinoid Calyx Fossil

Cleiocrinus tessellatus (Troost, 1850) crinoid calyx fossil Plate 7 figures 11 drawn by Major Adolphus Heiman (1809-1862) from A Critical Summary of Troost's Unpublished Manuscript on the Crinoids of Tennessee by Elvira Wood 1909. This crinoid was found in the Lebanon limestone (Silurian Period) division of the Stones River Formation of Duck River, near Columbia, Maury County Tennessee USA. It was assigned U.S. National Museum number 39910 and identified as a holotype.

Pictures of the actual Troost fossil at the Smithsonian shown below. 

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 39910 Specimen GUID:         http://n2t.net/ark:/65665/33b065c2b-0ba1-423d-bcbc-2f7ec78c0007 Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution

 

Cyathocrinites tiaraeformis Crinoid Fossil

Cyathocrinites tiaraeformis (Troost, 1850) crinoid calyx fossil Plate 7 figures 15-17 drawn by Major Adolphus Heiman (1809-1862) from A Critical Summary of Troost's Unpublished Manuscript on the Crinoids of Tennessee by Elvira Wood 1909. This crinoid was found in the Carboniferous Period Keokuk horizon of the Tullahoma Formation of White's Creek Springs, Davidson County Tennessee USA. It was assigned U.S. National Museum number 54236 and identified as a holotype. Elvira Wood lists it as Ichthyocrinus tiaraeformis (Troost) Hall.

Pictures of the actual Troost fossil at the Smithsonian shown below.

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 54236 Specimen GUID:         http://n2t.net/ark:/65665/390e41ca3-405f-4e83-91c9-5e494bfd3e5b Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution

 

 

 

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 54236 Specimen GUID:         http://n2t.net/ark:/65665/390e41ca3-405f-4e83-91c9-5e494bfd3e5b Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution

 

Image courtesy of the Smithsonian Institution Specimen Catalog Number:  USNM PAL 54236 Specimen GUID:         http://n2t.net/ark:/65665/390e41ca3-405f-4e83-91c9-5e494bfd3e5b Specimen housed in the collections of the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution