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, Qu├ębec, 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.
unclassified
  -
Trilobita
 Corynexochida - Illaenidae
Stenopareia sp. Holm 1886 trilobite
 Odontopleurida - Odontopleuridae
Anacaenaspis sp. Bruton 1967 trilobite
Dalaspis pustulosa Chatterton and Ludvigsen 2004 trilobite
Stelckaspis perplexa Billings 1866 trilobite
3
 Aulacopleurida - Aulacopleuridae
? Maurotarion sp. Alberti 1969 trilobite
Harpidella sp. McCoy 1849 trilobite
 Phacopida - Phacopidae
Acernaspis sp. Campbell 1967 trilobite
15
 Phacopida - Encrinuridae
Encrinurus longi Chatterton and Ludvigsen 2004 trilobite
2
Distyrax maccormicki n. sp. Chatterton and Ludvigsen 2004 trilobite
12
 Phacopida - Cheiruridae
Radiurus adraini Chatterton and Ludvigsen 2004 trilobite
1
Hadromeros edgecombei trilobite
2
 Phacopida - Calymenidae
Diacalymene lesperancei n. sp. Chatterton and Ludvigsen 2004 trilobite
10
Calymene gamachei Chatterton and Ludvigsen 2004 trilobite
37
 Proetida - Proetidae
Warburgella pratti trilobite
1
Decoroproetus dewingi trilobite
1
 Lichida - Lichidae
Arctinurus anticostiensis Northrup 1939 trilobite
1