UCMP loc. B-5247, Willow Creek: Wenlock - Pridoli, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena rhomboidalis (Wahlenberg 1818)
Rhynchonellata - Pentamerida
Gypidula cf. comis Hall and Clarke 1894
Diller and Schuchert 1894
    = Pentamerida indet. Schuchert and Cooper 1931
Merriam 1972
"Gypidula or Barrandella n. sp."
Rhynchonellata - Pentamerida - Gypidulidae
Diller and Schuchert 1894
Merriam 1972
Rhynchonellata - Pentamerida - Subrianidae
? Conchidium sp. Oehlert 1887
Diller and Schuchert 1894
Merriam 1972
Rhynchonellata - Atrypida - Atrypidae
as "Atrypa reticularis Linnaeus var. orbicularis Sowerby?"
Rhynchonellata - Atrypida - Septatrypidae
? Cranaena sp. Hall and Clarke 1893
Stauffer 1930
    = ? Atrypella sp.
Merriam 1972
Diller and Schuchert 1894
Merriam 1972
Atrypella scheii Holtedahl 1914
Gastropoda - Bellerophontida
Diller and Schuchert 1894
"much like the Russian B. septentrionalis Tschernyschew, but may be a young specimen of B. perplexa Walcott."
    = Bellerophontida indet. Ulrich and Scofield 1897
Merriam 1972
"bellerophontid"
Gastropoda - Murchisoniina - Loxonematidae
Diller and Schuchert 1894
Merriam 1972
Gastropoda - Murchisoniina - Murchisoniidae
Diller and Schuchert 1894
Bivalvia - Myalinida - Ambonychiidae
Diller and Schuchert 1894
Merriam 1972
Cephalopoda - Orthocerida - Orthoceratidae
Orthoceras sp. Breynius 1832
Diller and Schuchert 1894
Trilobita - Lichida - Lichidae
Trochurus sp. Beyrich 1845
Trilobita - Corynexochida - Styginidae
Scutellum sp. Pusch 1833
Trilobita - Phacopida - Cheiruridae
Trilobita - Phacopida - Encrinuridae
Trilobita - Proetida - Proetidae
Trilobita - Odontopleurida - Odontopleuridae
Crinoidea
Crinoidea indet. Miller 1821
Diller and Schuchert 1894
"large crinoid columns"
unclassified
Stromatopora sp. Goldfuss 1826
Stauffer 1930
Merriam 1972
Anthozoa - Heliolitida - Heliolitidae
Heliolites porosa (Goldfuss 1826)
Stauffer 1930
from "Gazelle" so presumably this locality
Anthozoa - Favositida
Diller and Schuchert 1894
only one of Diller and Schuchert's (1894) probably one of Diller and Schuchert's (1894) "Favosites sp. No. 1, 2, 3 or 4" repeated by Stauffer, so presumably the latter did not reidentify this
    = Favositida indet. Wedekind 1937
Merriam 1972
"favositids (massive)"
Favosites ? basalticus (Goldfuss 1826)
Stauffer 1930
probably one of Diller and Schuchert's (1894) "Favosites sp. No. 1, 2, or 3"
    = Favositida indet. Wedekind 1937
Merriam 1972
"favositids (massive)"
Favosites ? polymorpha (Goldfuss 1826)
Stauffer 1930
probably one of Diller and Schuchert's (1894) "Favosites sp. No. 1, 2, or 3"
    = Favositida indet. Wedekind 1937
Merriam 1972
"favositids (massive)"
Favosites turbinata Billings 1859
Stauffer 1930
probably one of Diller and Schuchert's (1894) "Favosites sp. No. 1, 2, or 3"
    = Favositida indet. Wedekind 1937
Merriam 1972
"favositids (massive)"
Anthozoa - Favositida - Pachyporidae
Cladopora ? labiosa (Billings 1859)
Stauffer 1930
    = Cladopora sp. Hall 1851
Merriam 1972
Anthozoa - Favositida - Alveolitidae
Stauffer 1930
    = Alveolites sp. Lamarck 1801
Merriam 1972
Anthozoa - Stauriida
Tabulophyllum sp. Fenton and Fenton 1924
Stauffer 1930
    = Stauriida indet. Verrill 1865
Merriam 1972
"Zelophyllum or Cyathactis?"
Anthozoa - Stauriida - Ptenophyllidae
Acervularia pentagona (Goldfuss 1826)
Diller and Schuchert 1894
Merriam 1972
Anthozoa - Stauriida - Endophyllidae
Endophyllum informal n. sp. Milne-Edwards and Haime 1851
Diller and Schuchert 1894
Merriam 1972
Anthozoa - Stauriida - Entelophyllidae
Diller and Schuchert 1894
Merriam 1972
Anthozoa - Stauriida - Acervulariidae
Acervularia sp. Schweigger 1819
Diller and Schuchert 1894
see common names

Geography
Country:United States State/province:California County:Siskiyou
Coordinates: 41.5° North, 122.6° West (view map)
Paleocoordinates:14.8° South, 106.3° West (Wright 2013)
Basis of coordinate:stated in text
Time
Period: Silurian Epoch: Wenlock - Pridoli
10 m.y. bin: Silurian 2
Key time interval: Wenlock - Pridoli
Age range of interval: 432.9 - 419.62 m.y. ago
Stratigraphy
Formation:Gazelle
Lithology and environment
Primary lithology:black,brown "shale"
Secondary lithology: "limestone"
Includes fossils?Y
Lithology description: "All the trilobites described in this paper were collected from brown-black shale interbeds in the thin-bedded basal portion of limestone..."
Environment:marine indet. Tectonic setting:passive margin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Also known as:3 miles southwest of Gazelle; probably locality 6 of Diller and Schuchert 1894 (see Churkin, Jr. and Langenheim, Jr. 1960)
Database number:214346
Authorizer:J. Marcot Enterer:J. Marcot
Modifier:J. Marcot Research group:marine invertebrate
Created:2020-09-25 15:32:15 Last modified:2025-02-22 15:12:02
Access level:the public Released:2020-09-25 15:32:15
Creative Commons license:CC0
Reference information

Primary reference:
73900. M. Churkin, Jr. 1961. Silurian trilobites from the Klamath Mountains, California. Journal of Paleontology 35(1):168-175 [J. Marcot/J. Marcot]

Secondary references:

84138 J. S. Diller and C. Schuchert. 1894. Discovery of Devonian rocks in California. American Journal of Science (series 3) 47(282):416-422 [J. Marcot/J. Marcot]
26807 C. W. Merriam. 1972. Silurian rugose corals of the Klamath Mountains region, California. United States Geological Survey Professional Paper 738:1-50 [W. Kiessling/U. Merkel]
83883 C. R. Stauffer. 1930. The Devonian of California. University of California Publications in Geological Sciences 19(4):81-118 [J. Marcot/J. Marcot]