Drainage ditch on the south side of Dudley Road, 70 m west of end of Turner Rd. (Ordovician of the United States)

Where: Maine (46.7° N, 68.2° W: paleocoordinates 24.9° S, 42.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Pyle Mountain Argillite Formation, Ashgill (449.5 - 443.7 Ma)

• Underlies Frenchville Formation; overlies Winterville Formation (Climacograptus spiniferus zone).

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified, fine-grained, green siltstone

• fine-grained, olive-green, noncalcareous argillite in southern exposures, becoming more calcareous gray in northern exposures. It was mapped (Figure 2) on opposite flanks of the Castle

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the USGS

Primary reference: R. B. Neuman. 1994. Late Ordovician (Ashgill) Foliomena Fauna Brachiopods from Northeastern Maine. Journal of Paleontology 68(6):1218-1234 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185954: authorized by Pete Wagner, entered by Pete Wagner on 29.05.2017, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Panderiidae
Panderia megalophthalma Linnarsson 1869 trilobite
 Corynexochida - Illaenidae
Illaenus sp. Dalman 1827 trilobite
 Agnostida - Metagnostidae
Corrugatagnostus sp. Kobayashi 1939 trilobite
Trinodus tardus Barrande 1846 trilobite
Geragnostus sp. Howell 1935 trilobite
 Agnostida - Sphaeragnostidae
Sphaeragnostus sp. Cooper and Kindle 1936 trilobite
? Carmon sp. Barrande 1872 trilobite
 Phacopida - Dalmanitidae
Dalmanitina sp. Reed 1905 trilobite
 Phacopida - Encrinuridae
Dindymene whittingtoni Owen and Bruton 2012 trilobite
Dindymene whittingtoni n. sp. Owen and Bruton 2012 trilobite
Staurocephalus cf. clavifrons Angelin 1878 trilobite
 Phacopida - Cheiruridae
Cheiruridae indet. Hawle and Corda 1847 trilobite
Pseudosphaerexochus sp. Schmidt 1881 trilobite
 Harpida - Harpetidae
Hibbertia sp. Jones and Woodward 1898 trilobite
 Proetida - Telephinidae
Telephina cf. fracta Barrande 1852 trilobite
 Proetida - Proetidae
? Ogmocnemis sp. Kielan 1960 trilobite
 Asaphida - Asaphidae
Asaphidae indet. Burmeister 1843 trilobite
 Asaphida - Remopleurididae
"Amphitryon radians" = Amphitryon murchisonii
"Amphitryon radians" = Amphitryon murchisonii Hawle and Corda 1847 trilobite
 Asaphida - Cyclopygidae
Symphysops sp. Raymond 1925 trilobite
Cyclopyge spp. Hawle and Corda 1847 trilobite
Microparia (Heterocyclopyge) sp. Hawle and Corda 1847 trilobite
 Asaphida - Nileidae
? Nileus sp. Dalman 1827 trilobite
 Asaphida - Dionididae
Dionide sp. Barrande 1847 trilobite
 Asaphida - Raphiophoridae
Lonchodomas sp. Angelin 1854 trilobite
? Raymondella sp. Reed 1935 trilobite
Ampyx sp. Dalman 1827 trilobite
Raphiophorus sp. Angelin 1854 trilobite
 Asaphida - Trinucleidae
Nankinolithus granulatus Wahlenberg 1818 trilobite
Tretaspis sp. McCoy 1849 trilobite
 Lichida - Lichidae
Dicranopeltis sp. Hawle and Corda 1847 trilobite
 Strophomenida - Sowerbyellidae
 Strophomenida - Aegiromenidae
 Strophomenida - Leptestiidae
 Strophomenida - Hesperomenidae
 Strophomenida - Glyptomenidae
Paromalomena inequistriata n. sp. Neuman 1994
 Strophomenida - Christianiidae
Nubialba forbesi n. gen. n. sp. Neuman 1994
Christiania "sp. indet." Hall and Clarke 1892
 Strophomenida - Foliomenidae
Foliomena folium Barrande 1879
 Protorthida - Skenidiidae
Skenidioides "sp. indet." Schuchert and Cooper 1931
 Atrypida - Cyclospiridae
 Orthida - Dalmanellidae
 Lingulida - Disciniidae
? Orbiculoidea sp. d'Orbigny 1847
 Siphonotretida - Siphonotretidae
? Acanthambonia sp. Cooper 1956
 Protobranchia - Ctenodontidae
Dystactella "sp. indet." Hall and Whitfield 1872 clam