SU-12.5. Saint Ulric, Matane (Ordovician of Canada)

Where: Quebec, Canada (48.8° N, 64.7° W: paleocoordinates 32.0° S, 58.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cordylodus angulatus conodont zone, B Member (Anse du Crapaud Formation), Gasconadian (485.4 - 477.7 Ma)

• PJW: Formation based on Bernstein, James & Lavoie 1992. This part of Conodont Fauna B is Cordylodus angulatus zone

• bed-level stratigraphic resolution

Environment/lithology: marine; black, gray, silty shale and nodular, calcareous mudstone

• nodular lime mudstones and calcisiltites in dark grey to black silty shales, limestones thin bedded (0-5 cm), medium to dark grey, weathering white;

Size class: macrofossils

Collected by F. Rasetti; reposited in the UNSM

Collection methods: bulk,

Primary reference: E. Landing, C. R. Barnes, and R. K. Stevens. 1986. Tempo of earliest Ordovician graptolite faunal succession: conodont-based correlations from the Tremadocian of Quebec. Canadian Journal of Earth Sciences 23:1928-1949 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 203942: authorized by Pete Wagner, entered by Pete Wagner on 28.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• Graptolites present in adjacent shales
Conodonta
 Proconodontida - Cordylodontidae
Cordylodus intermedius Furnish 1938 conodont
 Prioniodontida - Acodontidae
"Drepanodus arcuatus" = Acodus similaris
"Drepanodus arcuatus" = Acodus similaris Rhodes 1955 conodont
  - Amphigeisinidae
"Prooneotodus tenuis" = Phakelodus tenuis
"Prooneotodus tenuis" = Phakelodus tenuis Muller 1959 conodont
 Protopanderodontida - Acanthodontidae
Acanthodus uncinatus Furnish 1938 conodont
 Protopanderodontida - Protopanderodontidae
Variabiloconus bassleri Furnish 1938 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus sp. Lindstrom 1971 conodont
Drepanoistodus forceps Lindström 1955 conodont
Drepanoistodus cf. suberectus Branson and Mehl 1933 conodont