| 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 |  Canada |
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] | ||||
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