M-WC-1. 0.87 miles N 77.5˚W School #9, Colchester Township (Cambrian of the United States)

Also known as =Collection I in Tasch (1949). Was "Monkton Quartzite Fm."

Where: Chittenden County, Vermont (44.5° N, 73.2° W: paleocoordinates 33.6° S, 85.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Bonnia zone, Monkton Quartzite Formation, Dyeran (515.3 - 511.2 Ma)

• "u. L.Cambrian "Bonnia zone" (which is Dyeran, had been Caefai-StDavids; PJW)

• bed-level stratigraphic resolution

Environment/lithology: marine; quartzite and dolomite

• "alternating qtzite and dolo, nearshore, geosynclinal, BA1"
• Most of the matrix in which the fossils are found is a leached, porous, quartz sandstone, light gray or stained brown by iron oxide. The sand is mainly fine-grained, but some is very fine. In the least weathered specimens there is less porosity and a small percentage of dolomite cement.

Size classes: mesofossils, microfossils

Preservation: mold/impression

Collected by Cecil H. Kind Kindle

Primary reference: A. B. Shaw. 1962. Paleontology of northwestern Vermont. IX. Fauna of the Monkton Quartzite. Journal of Paleontology 36(2):322-345 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "A.B. Shaw 1962. Paleontology of northwestern VT. IX. Fauna of the Monkton Quartzite. J. Paleo. 36:332-345."
 Redlichiida - Holmiidae
Esmeraldina hermani trilobite
[entered as Esmereldina hermani]
 Redlichiida - Olenellidae
Olenellus brachycephalus trilobite
40C, 2H
 Ptychopariida - Ptychopariidae
 Corynexochida - Dorypygidae
Bonnia capito Walcott 1916 trilobite
18C, 13P, 2H; misspelled "Connia" in table 1
 Corynexochida - Zacanthoididae
Prozacanthoides sp. Resser 1937 trilobite
  - Antagmidae
 Tryblidiida - Protoconchoididae
"Scenella (Protoconchoides) varians" = Protoconchioides varians
"Scenella (Protoconchoides) varians" = Protoconchioides varians Walcott 1886
 Cyrtonellida -
Cyrtonellida indet. HornĂ½ 1963
"New gastropod" in original list
 Kutorginida - Kutorginidae
Kutorgina cingulata Billings 1861
2V, 1D
 Kutorginida - Nisusiidae
Nisusia festinata Billings 1861
7V, 5D
 Naukatida - Naukatidae
? Swantonia sp. Walcott 1905
originally entered as "? Swantonia sp."
 Paterinida - Paterinidae
Paterina swantonensis
Paterina labradorica swantonensis
 Hyolithida - Hyolithidae
 Hyolithida -
"Hyolithes communis" = Insolitotheca communis
"Hyolithes communis" = Insolitotheca communis Billings 1872