TYPE SPECIMENS OF PALEOZOIC FOSSILS 297 



Rhipidomella alsa Hall 



1829 ^1 TYPE: PLASTOTYPE Orthis alsus Hall. 1 6th annual 



report of'the New York state cabinet of natural history. 

 1863. p. 33. 



Hall. Paleontology of New York. 1867. v. 4, pi. 4, 

 fig. 2. 



Schoharie grit Albany county, N. Y. 



1830 ziJU, TYPE Hall. Paleontology of New York. , 1867. v. 4, 



pi. 4, fig. 3. 



Schoharie grit Clarksville, Albany co, N. Y. 



C. Van Deloo, coll. 1862 



1831 -S- 1 -^- 1 - TYPE Hall. Paleontology of New York. 1867. v. 4, 



pi. 4, fig. 4. 



Schoharie grit Clarksville N. Y. 



R. P. Whitfield and C. Van Deloo, coll. 1861 



1832 J^i TYPE Hall. Paleontology of New York. 1867. v. 4, 



pl. 4, ng. 5. 



Schoharie grit Albany county, N. Y. 



18 33 SA ^ L TYPE Hall. Paleontology of New York. 1867. v. 4, pl.4, 



fig. 6. 



Schoharie grit Albany county, N. Y. 



C. Van Deloo, coll. 1862 



1834 &ig TYPE Hall. Paleontology of New York. 1867. v. 4, pl.4, 



fig- 7- 



Schoharie grit Clarksville N. Y. 



R. P. Whitfield and C. Van Deloo, coll. 1861 



Rhipidomella cleobis Hall 



18 35 ~V^ TYPE Orthis cleobis Hall. i6th annual report of 



the New York state cabinet of natural history. 1863. p. 35. 



Hall. Paleontology of New York. 1867. v. 4, pl. 5, 

 fig. 9. 



Onondaga limestone Clarence, Erie co. N. Y. 



Rhipidomella hybrida Sowerby (sp.) 



1836 ^P- HYPOTYPE Orthis hybrida Sowerby. Murchison's 



Silurian system. 1839. p. 630. 



Beecher & Clarke. New York state museum memoir i. 

 1889. pl. i, fig. 13, i3a. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 1878 



