Box 25, Folder 13: Paleontology Notes 5? - Crinoidea B

Lecanocrinus caliculus, Hall, Pal. of N.Y. Vol. 2 p. 203. pl. 46 fig. 3

Calyx cup form, base concave for the insertion of the column; pelvic plates comparatively large, not closely anchylosed; costal plates as in the first two species, two of them heptagonal from the insertion of the intercostal plate; scapulars plates broad and spreading, with a hexagonal inter= scapular plate. Arms unknown; column round,

H. 0.3 - D. 0.4

Middle Silurian - Niagara Shale

Lockport N.Y.

Cyst.

(Lepadocrinus Conrad An Rep. N.Y. 1840)

298 See Am Jour Sec 25 p 279

4 p 339

Genus Apiocystites. Forbes ; Hall

Pal. of N.Y. vol. 2 p. 242.

Corpus oblongum, tetrangonum, rhombiferum, angulis truncatis, excavatis ; brachia quatuor plana, in sulcis angulorum inclusa; sulci brachiales obliqui= lobulati. Os transversum, apicle apicale; anus lateralis, subapicalis ; ossicula ovariales laterales sex. Assuloe basalis 4; infra= ovariales 5; centro= laterales 5; supra= ovariales 5; apicalis? Basis plana. Columna?

Cystideae

Apiocystites elegans, Hall

Pal. of N.Y. Vol. 2 p. 243. pl. 51 figs. 1 to 17

Body oblong oval, slightly compressed at the sides, composed of four series of plates the basal series consisting of four,

[pencil sketch]

rd six,

ascertained;

anterior

re placed

Apiocystites elegans

rounded

above the plates on either side, extending down= ward to the junction of the basal and second series of plates; surface of the body and plates of the arms or= namented by minute granules and larger tubercles, the latter often coalescing and forming irregular ridges; rows of granules often parallel to the margins of the plates and the larger tubercles some=

Cystideae

Apiocystites elegans, Hall

Pal. of N.Y. Vol. 2 p. 243. pl. 51 figs. 1 to 17

Body oblong oval, slightly compressed at the sides, composed of four series of plates, the basal series consisting of four, the second five, and the third six, while the fourth is not fully ascertained; arms four, consisting of an anterior and posterior pair, which are placed in shallow grooves at the rounded angles of the body, and rise above the plates on either side, extending down= ward to the junction of the basal and second series of plates; surface of the body and plates of the arms or= namented by minute granules and larger tubercles, the latter often coalescing and forming irregular ridges; rows of granules often parallel to the margins of the plates and the larger tubercles some=