File:Walcott Cambrian Geology and Paleontology II plate 54.jpg

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Plate 54: Trilobita (Holmia and Olenellus) to face page 326

  1. Holmia ? macer (Walcott) = Mummaspis macer (Walcott, 1913)
  2. Olenellus truemani (Walcott) = Fritzolenellus truemani (Walcott, 1913)
  3. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)
  4. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)
  5. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)
  6. Olenellus truemani (Walcott) = Fritzolenellus truemani (Walcott, 1913)
  7. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)
  8. Olenellus truemani (Walcott) = Fritzolenellus truemani (Walcott, 1913)
  9. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)
  10. Olenellus truemani (Walcott) = Olenellus cf. truemani (Walcott, 1913)

Original historic description:

DESCRIPTION OF PLATE 54
PAGE
Holmia ? macer Walcott 313
Fig. 1. (× 3.) Type specimen of the species. (From locality 12v.) Lower Cambrian shale, Fruitville, Lancaster County, Pennsylvania. U. S. National Museum, Catalogue No. 60092.
Olenellus truemani Walcott 316
Fig. 2. (× 2.) Surface of shale with two compressed, nearly entire dorsal shields and a small cephalon. (Locality 61k.) U. S. National Museum, Catalogue No. 60084.
3. (× 2.) Compressed and slightly distorted hypostoma. (Locality 61k.) U. S. National Museum, Catalogue No. 60085.
4 and 5. (× 5.) Two small hypostomas. (Locality 61k.) U. S. National Museum, Catalogue No. 60086.
6. (Natural size.) Cephalon with outer test of cheeks exfoliated so as to show casts of radial canals. (Locality 61k.) U. S. National Museum, Catalogue No. 60087.
7. (Natural size.) Broad, flattened dorsal shield with enlarged third thoracic segment. (Locality 61k.) U. S. National Museum, Catalogue No. 60088.
8. (× 2.) A small, almost entire dorsal shield. (Locality 61k.) U. S. National Museum, Catalogue No. 60089.
9. (× 2.) A small cephalon preserving much of its original convexity. The attached thoracic segments are more or less displaced. (Locality 61k.) U. S. National Museum, Catalogue No. 60090.
10. (× 2.) Small, nearly entire, undistorted dorsal shield with large third thoracic segment. (Locality 61k.) U. S. National Museum, Catalogue No. 60091.
The specimens represented by figs. 2-10 are from locality 61k. Lower Cambrian: Mahto formation; dark, hard siliceous shale, northeast base of Mumm Peak above Mural Glacier on the west side of Hitka Pass, 6 miles (9.6 km.) in a direct line north of summit of Robson Peak and northwest of Yellowhead Pass, in western Alberta, Canada.
Date 1913/14
Source

Charles D. Walcott: Cambrian Geology and Paleontology II. Smithsonian Miscellaneous Collections Volume 57 (Publication 2270). City of Washington. Published by the Smithsonian Institution. 1914. Inlcuding:

Charles D. Walcott: New Lower Cambrian Subfauna. Smithsonian Miscellaneous Collections Volume 57, Number 11 (Publication 2185). City of Washington. Published by the Smithsonian Institution. July 21, 1913
Author
Charles Doolittle Walcott  (1850–1927)  wikidata:Q362124 s:en:Author:Charles Doolittle Walcott
 
Charles Doolittle Walcott
Alternative names
Charles Walcott, Charles D. Walcott
Description American paleontologist and geologist
Date of birth/death 31 March 1850 Edit this at Wikidata 9 February 1927 Edit this at Wikidata
Location of birth/death Category:New York Washington, D.C.
Authority file
creator QS:P170,Q362124
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current10:37, 29 April 2011Thumbnail for version as of 10:37, 29 April 20112,060 × 3,506 (1.02 MB)Enomil (talk | contribs){{Information |Description=Plate 54: Trilobita (''Holmia'' and ''Olenellus'') to face page 326 # ''Holmia ? macer'' <small>(Walcott)</small> = ''Mummaspis macer'' <small>(Walcott, 1913)</small> # ''Olenellus tr

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