Campbellton Formation | |
---|---|
Stratigraphic range: Latest Pragian-Emsian | |
Type | Geological formation |
Unit of | Gaspé Sandstones |
Overlies | Val d’Amour Formation |
Thickness | Nearly 1 kilometer |
Location | |
Region | New Brunswick |
Country | ![]() |
The Campbellton Formation is a geologic formation in New Brunswick. It preserves fossils dating back to the latest Pragian and Emsian of the Devonian period.[1]
The Campbellton Formation is the southernmost representative of the Gaspé Sandstones group[2] and can be divided into 6 facies associations (restricted lacustrine, marginal lacustrine, near-shore lacustrine, coastal-deltaic, sandy to gravelly alluvial plain, and gravelly proximal alluvial environments), and is nearly a kilometer thick.[1] Lacustrine facies are prevalent in the lower parts of the eastern belt (representing a large open lake) while upper parts of the formation are dominated by alluvial facies (representing an eastward-flowing axial braided river system).[1]
Acanthodians | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Ankylacanthus | A. incurvus | Atholville Beds.[3] | Fin spines.[2][3] | A possible gyracanthid, formerly known as Gyracanthus incurvus.[3] | |
Cheiracanthus? | C.? costellatus | [2] | ![]() | ||
Mesacanthus | M. semistriatus | [2] | ![]() |
Chondrichthyans | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Doliodus | D. latispinosus | Fin spines.[4] | Also known from the York River and Battery Point formations.[4] | ||
Protodus | P. jexi | "Atholville Beds, shoreline approximately 1.3 km W of the interprovincial bridgecrossing the Restigouche River, near Campbellton".[5] | Isolated teeth.[2][5] | A protodontid. |
Ostracoderms | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Yvonaspis | Y. campbelltonensis | A cephalaspid, formerly listed as a species of Cephalaspis.[2][6] | |||
Y. jexi | A cephalaspid, formerly listed as a species of Cephalaspis.[2][6] | ||||
Y. westolli | A cephalaspid, formerly listed as a species of Cephalaspis.[2][6] |
Placoderms | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Phlyctaenius | P. acadicus | Fragments of exoskeleton and dermal plates.[2] | A phlyctaeniid. | ||
P. atholi | Fragments of exoskeleton and dermal plates.[2] | A phlyctaeniid. | |||
P. stenosus | Fragments of exoskeleton and dermal plates.[2] | A phlyctaeniid. |
Arthropods | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Eoarthropleura | Near the Dalhousie Junction and Point la Nim areas.[7] | An arthropleurid. | |||
Gaspestria | G. genselorum | A millipede.[8] | |||
Millipede | Unnamed.[9] | 4 detailed impression fossils.[9] | |||
cf. Parahughmilleria | cf. P. sp. | "Point La Nim (48°03.97’N; 66°24.78’W), west of Dalhousie, New Brunswick".[10] | "Specimen NBMG 11012 consists of a part and counterpart of an articulated partial preabdomen of the opisthosoma".[10] | A eurypterid. | |
Primitia | P. mundula | Disarticulated valves.[2] | An ostracod. | ||
P. scaphoides | Disarticulated valves.[2] | An ostracod. | |||
Pterygotus | P. anglicus | Atholville beds near the western end of the Campbellton Formation exposure.[7] | A eurypterid. | ![]() | |
P. sp. | A eurypterid.[2] | ||||
Scorpion | Unnamed[11] | Near the Dalhousie Junction and Point la Nim areas.[7] | A scorpion with book lungs preserved.[9] |
Molluscs | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Cyclora | C. valvatiformis | A gastropod.[2] | |||
C. imbricata | A gastropod.[2] |
Plants | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Bitelaria | B. dubjanskii | Facies 1.[11] | A tracheophyte. | ||
Chaleuria | C. cirrosa | Facies 5.[11] | A tracheophyte. | ![]() | |
Drepanophycus | D. gaspianus | Facies 1, 2, 3 and 5.[11] | A drepanophycale. | ![]() | |
D. spinaeformis | Facies 1, 2, 3, 5 and 6.[11] | A drepanophycale. | ![]() | ||
D. sp. | Facies 1 and 5.[11] | A drepanophycale. | ![]() | ||
Kaulangiophyton | Facies 1.[11] | A tracheophyte. | |||
Leclercqia | L. complexa | Facies 1 and 4.[11] | A protolepidodendrale. | ![]() | |
L. andrewsii | Facies 1.[11] | A protolepidodendrale. | |||
Loganophyton | L. dawsoni | Facies 1, 4 and 5.[11] | A tracheophyte.[2] | ||
Omniastrobus | O. dawsonii | "Impressions of strobili with numerous carbonized spore masses".[12] | |||
Oocampsa | O. catheta | "About ½ mi west of Dalhousie Junction."[13] | A tracheophyte. | ||
Oricilla | O. bilinearis | Facies 1 and 5.[11] | A zosterophyll. | ||
Pachytheca | Facies 2.[11] | ||||
Pertica | P. dalhousii | Facies 5.[11] | A tracheophyte. | ||
Psilophyton | P. coniculum | Facies 6.[11] | A trimerophytopsid. | ||
P. charientos | Facies 1.[11] | A trimerophytopsid. | |||
P. princeps | Facies 1, 3, 5 and 6.[11] | A trimerophytopsid. | ![]() | ||
P. sp. | Facies 1 and 5.[11] | A trimerophytopsid. | |||
Sawdonia | S. acanthotheca | Facies 1 and 2.[11] | A zosterophyll. | ||
S. ornata | Facies 1 and 5.[11] | A zosterophyll. | |||
Spongiophyton | S. minutissimum | Facies 1, 2 and 6.[11] | |||
Taeniocrada | T. dubia | Facies 2 and 5.[11] | A tracheophyte. | ||
Trimerophyton | T. robustius | Facies 4.[11] | A trimerophytopsid. | ![]() | |
Zosterophyllum | Z. divaricatum | "South shore of the Restigouche River near Dalhousie, New Brunswick".[14] | A zosterophyll. |
Fungi | |||||
---|---|---|---|---|---|
Genus | Species | Presence | Material | Notes | Images |
Prototaxites | Facies 2 and 6.[11] |