Morphobank

Project 4760: S. R. Westrop, R. Ludvigsen, C. H. Kindle. 1996. Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, Western Newfoundland. Journal of Paleontology. 70 (5):804-829.

Specimen: † Agnostus pisiformis (unvouchered)
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Abstract

Shelf-derived limestone boulders in debris flows of the Cow Head Group, western Newfoundland, have yielded rich mid- to Upper Cambrian trilobite faunas. The agnostoid component of Marjuman boulders consists of 23 species assigned to 11 genera; Kormagnostus boltoni and Kormagnostus? copelandi are new. Cladistic parsimony analysis of the Ptychagnostidae Kobayashi reduces this family to 3 genera: Ptychagnostus Jaekel, Pseudophalacroma Pokrovskaya and Lejopyge Hawle and Corda; Ptychagnostus includes three non-obligate subgenera: P. (Ptychagnostus) (= Tomagnostus Howell); P. (Goniagnostus) Howell and P. (Aotagnostus) Opik (= Myrmecomimus Opik). Correlation with zonations established in northern Canada and Utah indicates that the Cow Head Group includes a nearly complete sequence of agnostoid faunas from the mid-Cambrian Ptychagnostus gibbus Zone to the Upper Marjuman Cedaria brevifrons Zone.

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Article DOI: 10.1017/S0022336000023854

Project DOI: 10.7934/P4760, http://dx.doi.org/10.7934/P4760

This project contains	Matrices
1 Media 1 Matrix 1 Document 44 Taxa 1 Specimen 28 Characters Total size of project's media files: 368.44k Download Project SDD File	Total scored cells: 1217 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 28 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 70 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:28/0

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MorphoBank Project 4760

Creation Date:
19 July 2023
Publication Date:
27 July 2023

Authors' Institutions

Brock University

University of Victoria

Members

Shreya Jariwala
Project Administrator

1217
(1217, 0, 0)

Brooke Long-Fox
Full membership

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Taxonomic Overview for Matrix 'M29368' (44 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Agnostus punctuosus Taxon name last Modified on 07/19/23	0	28	28	0	0	0	0	2
[2] † Agnostus affinis Taxon name last Modified on 07/19/23	0	30	28	0	0	0	0	2
[3] † Zeteagnostus incautus Taxon name last Modified on 07/19/23	1	27	27	0	0	0	0	2
[4] † Zeteagnostus scarifatus Taxon name last Modified on 07/19/23	0	28	28	0	0	0	0	2
[5] † Acidusus atavus Taxon name last Modified on 07/19/23	1	31	27	0	0	0	0	2
[6] † Acidusus acidusus Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[7] † Acidusus germanus Taxon name last Modified on 07/19/23	0	30	28	0	0	0	0	2
[8] † Acidusus occultatus Taxon name last Modified on 07/19/23	0	28	28	0	0	0	0	2
[9] † Ptychagnostus michaeli Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[10] † Ptychagnostus akanthodes Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[11] † Ptychagnostus cassis Taxon name last Modified on 07/19/23	2	27	26	0	0	0	0	2
[12] † Agnostus aculeatus Taxon name last Modified on 07/19/23	3	26	25	0	0	0	0	2
[13] † Agnostus hybridus Taxon name last Modified on 07/19/23	1	30	27	0	0	0	0	2
[14] † Agnostus seminula Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[15] † Onymagnostus semiermis Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[16] † Agnostus barrandei Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[17] † Agnostus praecurrens Taxon name last Modified on 07/19/23	0	31	28	0	0	0	0	2
[18] † Agnostus gibbus Taxon name last Modified on 07/19/23	1	30	27	0	0	0	0	2
[19] † Triplagnostus scopus Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[20] † Triplagnostus ultimus Taxon name last Modified on 07/19/23	1	27	27	0	0	0	0	2
[21] † Aotagnostus culminosus Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[22] † Aotagnostus aotus Taxon name last Modified on 07/19/23	1	29	27	0	0	0	0	2
[23] † Aotagnostus magniceps Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[24] † Myrmecomimus tribulis Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[25] † Myrmecomimus saltus Taxon name last Modified on 07/19/23	2	26	26	0	0	0	0	2
[26] † Agnostus nathorsti Taxon name last Modified on 07/19/23	0	29	28	0	0	0	0	2
[27] † Goniagnostus scarabaeus Taxon name last Modified on 07/19/23	0	31	28	0	0	0	0	2
[28] † Agnostus spiniger Taxon name last Modified on 07/19/23	4	26	24	0	0	0	0	2
[29] † Goniagnostus (cryotypus) oxytaurus Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[30] † Goniagnostus (cryotypus) lemniscatus Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[31] † Agnostus fissus Taxon name last Modified on 07/19/23	0	30	28	0	0	0	0	2
[32] † Agnostus perrugatus Taxon name last Modified on 07/19/23	2	26	26	0	0	0	0	2
[33] † Lejopyge acantha Taxon name last Modified on 07/19/23	6	22	22	0	0	0	0	2
[34] † Agnostus armatus Taxon name last Modified on 07/19/23	4	25	24	0	0	0	0	2
[35] † Lejopyge calva Taxon name last Modified on 07/19/23	7	22	21	0	0	0	0	2
[36] † Battus laevigatus Taxon name last Modified on 07/19/23	5	23	23	0	0	0	0	2
[37] † Lejopyge multifora Taxon name last Modified on 07/19/23	6	22	22	0	0	0	0	2
[38] † Phalacroma ? dubium Taxon name last Modified on 07/19/23	2	26	26	0	0	0	0	2
[39] † Agnostus lundgreni Taxon name last Modified on 07/19/23	1	28	27	0	0	0	0	2
[40] † Lejopyge rigbyi Taxon name last Modified on 07/19/23	1	27	27	0	0	0	0	2
[41] † Tomagnostus bothrus Taxon name last Modified on 07/19/23	1	29	27	0	0	0	0	2
[42] † Agnostus elegans Taxon name last Modified on 07/19/23	1	27	27	0	0	0	0	2
[43] † Peronopsis brighamensis Taxon name last Modified on 07/19/23	2	26	26	0	0	0	0	2
[44] † Agnostus pisiformis Taxon name last Modified on 07/19/23	0	28	28	0	0	0	0	2

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