AN78 (Silurian of Canada)

Where: Quebec, Canada (49.4° N, 63.5° W: paleocoordinates 22.5° S, 34.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Pavillon Member (Jupiter Formation), Telychian (438.5 - 433.4 Ma)

Environment/lithology: open shallow subtidal; lithified, gray, green shale and lithified limestone

• 'green-gray shale, limestone interbeds'

Size class: macrofossils

Primary reference: B. D. E. Chatterton and R. Ludvigsen. 2004. Early Silurian trilobites of Anticosti Island, Québec, Canada. Palaeontographica Canadiana 22 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187769: authorized by Melanie Hopkins, entered by Melanie Hopkins on 11.08.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Numbers in comments refer to additional specimens from three bedding places within 10 cm of one another near low tide level, towards base of member.
Show authors, comments, and common names
unclassified
  -
Rielaspis elegantula
Trilobita
 Proetida - Aulacopleuridae
? Maurotarion sp., Harpidella sp.
? Maurotarion sp. Alberti 1969 trilobite
Harpidella sp. M'Coy 1849 trilobite
 Proetida - Proetidae
Warburgella pratti
Warburgella pratti trilobite
1
 Proetida - Tropidocoryphidae
"Decoroproetus dewingi" = Dalarnepeltis dewingi
"Decoroproetus dewingi" = Dalarnepeltis dewingi Chatterton and Ludvigsen 2004 trilobite
1
 Corynexochida - Illaenidae
Stenopareia sp.
Stenopareia sp. Holm 1886 trilobite
 Odontopleurida - Odontopleuridae
Dalaspis pustulosa, Anacaenaspis sp., Stelckaspis perplexa
Dalaspis pustulosa Chatterton and Ludvigsen 2004 trilobite
Anacaenaspis sp. Bruton 1967 trilobite
Stelckaspis perplexa Billings 1866 trilobite
3
 Lichida - Lichidae
"Arctinurus anticostiensis" = Anadesma shallopensis
"Arctinurus anticostiensis" = Anadesma shallopensis Twenhofel 1928 trilobite
1
 Phacopida - Calymenidae
Diacalymene lesperancei n. sp., Calymene gamachei
Diacalymene lesperancei n. sp. Chatterton and Ludvigsen 2004 trilobite
10
Calymene gamachei Chatterton and Ludvigsen 2004 trilobite
37
 Phacopida - Phacopidae
Acernaspis sp.
Acernaspis sp. Campbell 1967 trilobite
15
 Phacopida - Cheiruridae
Radiurus adraini, Hadromeros edgecombei
Radiurus adraini Chatterton and Ludvigsen 2004 trilobite
1
Hadromeros edgecombei trilobite
2
 Phacopida - Encrinuridae
Distyrax maccormicki n. sp., Encrinurus longi
Distyrax maccormicki n. sp. Chatterton and Ludvigsen 2004 trilobite
12
Encrinurus longi Chatterton and Ludvigsen 2004 trilobite
2