PBDB Collection

Snowshoe Formation, Oregon, USA (Locality 550C) (Jurassic of the United States)

Where: Oregon (44.0° N, 119.5° W: paleocoordinates 34.5° N, 59.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Snowshoe Formation, Late/Upper Bajocian (171.6 - 167.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; tuffaceous, gray sandstone

• predominantly dark gray tuffaceous sandstone with minor dark gray mudstone and tuffaceous limestone. samples from dark gray tuffaceous limestone layers

Size class: microfossils

Primary reference: E. A. Pessagno, Jr. and C.D. Blome. 1980. Upper Triassic and Jurassic Pantanelliinae from California, Oregon, and British Columbia. Micropaleontology 26(3):225-273 [A. Miller/K. Layou/D. Schramm]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32747: authorized by Arnold Miller, entered by Karen Layou on 14.07.2003, edited by Adam Kocsis and Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundance data given as rare (1-2 specimens); common (3-5 specimens); and abudant (6+ specimens). Data recorded as 1, 3, 6 specimens for rare, common, and abundant, respectively.

Show authors, comments, and common names

Protozoa
Spumellaria - Pantanelliidae	Zartus sp., Pantanellium sp., Pachyonchus sp., Pachyonchus varius, Pachyonchus crassus n. sp., Pachyonchus tumidus, Gorgansium vallieri, Gorgansium silviesense¹ Zartus sp. Pessagno and Blome 1980 radiolarian Pantanellium sp. Pessagno 1977 radiolarian Pachyonchus sp. Pessagno and Blome 1980 radiolarian [entered as Pachyoncus sp.] Pachyonchus varius Pessagno and Blome 1980 radiolarian [entered as Pachyoncus varius] Pachyonchus crassus n. sp. Pessagno and Blome 1980 radiolarian [entered as Pachyoncus crassus] Pachyonchus tumidus Pessagno and Blome 1980 radiolarian [entered as Pachyoncus tumidus] Gorgansium vallieri radiolarian Gorgansium silviesense¹ Pessagno and Blome 1980 radiolarian
Spumellaria - Parvivaccidae	Lanubus spp.² Lanubus spp.² Pessagno and Yang 1989 radiolarian
Actinommacea - Xiphostylidae	Xiphostylus sinuosus², Xiphostylus spp.², Archaeocenosphaera spp.², Triactoma spp.² Xiphostylus sinuosus² radiolarian Xiphostylus spp.² Haeckel 1881 radiolarian Archaeocenosphaera spp.² Pessagno et al. 1989 radiolarian Triactoma spp.² Rüst 1885 radiolarian
Nassellaria - Hsuidae	Hsuum lupheri³, Hsuum robustum³, ? Lupherium nitidum³ Hsuum lupheri³ Pessagno and Whalen 1982 radiolarian Hsuum robustum³ Pessagno and Whalen 1982 radiolarian ? Lupherium nitidum³ Pessagno and Whalen 1982 radiolarian
Nassellaria - Parvicingulidae	"Parvicingula burnsensis" = Praeparvicingula burnsensis³, "Parvicingula grantensis" = Praeparvicingula grantensis³ "Parvicingula burnsensis" = Praeparvicingula burnsensis³ Pessagno and Whalen 1982 radiolarian "Parvicingula grantensis" = Praeparvicingula grantensis³ Pessagno and Whalen 1982 radiolarian

¹Kiessling 2005; ²Pessagno et al. 1989; ³Pessagno and Whalen 1982