USGS M1819, Maple Island [Lower Sandstone Mbr, Haida Fm] (Cretaceous of Canada)

Also known as M1826, M1827, M1828, M1829, M1830, M1831

Where: British Columbia, Canada (53.3° N, 132.0° W: paleocoordinates 22.9° N, 110.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Haida Formation, Albian (113.0 - 100.5 Ma)

• STRATIGRAPHIC RELATIONS: From the lower sandstone member of the Haida Fm, which rests unconformably on massive agglomerate of the Jurassic Yakoun Fm, and is overlain by the shale member, which passes up into the Honna Fm. AGE: Albian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From 287-610 m above base of local section.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, conglomeratic sandstone

• ENVIRONMENT: not stated in text, but apparently shallow marine siliciclastic.
• SPECIFIC LITHOLOGY: Sandstone, gritty sandstone, and lenses of conglomerates. LITHIFICATION: Lithified, on the basis of facies description and figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collected by Jones in 1963; reposited in the USNM

• COLLECTOR: D.L. Jones, 1963. REPOSITORY: USGS, presumably now at USNM.

Primary reference: F. H. McLearn. 1972. Ammonoids of the lower Cretaceous sandstone member of the Haida Formation, Skidgate Inlet, Queen Charlotte Islands, western British Columbia. Geological Bulletin of Canada Bulletin 188:1-78 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87486: authorized by Austin Hendy, entered by Austin Hendy on 18.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids, but other groups not listed. NOMENCLATURE: Authoritative publication with slightly antiquated nomenclature, but with species resolution identifications.
Cephalopoda
 Ammonitida - Cleoniceratidae
Cleoniceras (Grycia) perezianum Whiteaves 1876 ammonite
 Ammonitida - Desmoceratidae
 Ammonitida - Tetragonitidae
Tetragonites subtimotheanus Wiedmann 1962 ammonite
Zelandites cf. inflatus Matsumoto 1959 ammonite
Zelandites perezi McLearn 1972 ammonite
Anagaudryceras sacya Forbes 1846 ammonite