Restigouche River Bridge (Devonian to of Canada)

Also known as Atholville Beds; Campbellton

Where: New Brunswick, Canada (48.0° N, 66.7° W: paleocoordinates 36.9° S, 15.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Campbellton Formation, Pragian to Pragian (410.8 - 393.3 Ma)

• ""basal Campbellton Formation... The beds... uncomformably overlie rhyolite of the Lower Devonian Val d'Amour Formation dated at 407.4 +/- 0.8 Ma... Miospores indicated an early Emsian age... However, in terms of the international timescale... the basal beds could be as old as late Pragian"

• member-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, coarse-grained mudstone

• "might represent a fossilized mudflow or lahar"
• "steeply inclined basal coarse mudstone breccia overlain by a succession of interbedded sandstones and mustdones... dark grey fossiliferous mudstone-breccia containing rhyolite fragments and blocks of sandstone or finer mudstone rich in ostracodes and gastropods, with eurypterids and plants are mainly unbedded"

•certainly highly lithified based on figures of specimens

Size class: mesofossils

Reposited in the BMNH, CM, MCZ

• other specimens are in the National Museum of Scotland

Primary reference: S. Turner and R. F. Miller. 2008. Protodus jexi Woodward, 1892 (Chondrichthyes), from the Lower Devonian Campbellton Formation, New Brunswick, Canada. Acta Geologica Polonica 58(2):133-145 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90629: authorized by John Alroy, entered by John Alroy on 11.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

  - Protodontidae
Protodus jexi n. gen. n. sp.
Protodus jexi n. gen. n. sp. Woodward 1892 elasmobranch