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.
Description
The Campbellton Formation is the southernmost representative of the Gaspé Sandstones group 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. 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).
Fossil content Vertebrates Acanthodians Genus Species Presence Material Notes Images AnkylacanthusA. incurvus Atholville Beds.Fin spines. A possible gyracanthid, formerly known as Gyracanthus incurvus. Cheiracanthus?C.? costellatusMesacanthusM. semistriatus
Chondrichthyans Genus Species Presence Material Notes Images DoliodusD. latispinosusFin spines. Also known from the York River and Battery Point formations. ProtodusP. jexi"Atholville Beds, shoreline approximately 1.3 km W of the interprovincial bridgecrossing the Restigouche River, near Campbellton".Isolated teeth.A protodontid.
Ostracoderms Genus Species Presence Material Notes ImagesYvonaspisY. campbelltonensis A cephalaspid, formerly listed as a species of Cephalaspis. Y. jexiA cephalaspid, formerly listed as a species of Cephalaspis.Y. westolliA cephalaspid, formerly listed as a species of Cephalaspis.
Placoderms Genus Species Presence Material Notes ImagesPhlyctaeniusP. acadicus Fragments of exoskeleton and dermal plates. A phlyctaeniid. P. atholi Fragments of exoskeleton and dermal plates. A phlyctaeniid. P. stenosus Fragments of exoskeleton and dermal plates. A phlyctaeniid.
Invertebrates Arthropods Genus Species Presence Material Notes ImagesEoarthropleuraNear the Dalhousie Junction and Point la Nim areas.An arthropleurid.GaspestriaG. genselorumA millipede.MillipedeUnnamed.4 detailed impression fossils.cf. Parahughmilleriacf. P. sp."Point La Nim (48°03.97’N; 66°24.78’W), west of Dalhousie, New Brunswick"."Specimen NBMG 11012 consists of a part and counterpart of an articulated partial preabdomen of the opisthosoma".A eurypterid.PrimitiaP. mundulaDisarticulated valves.An ostracod.P. scaphoidesDisarticulated valves.An ostracod. PterygotusP. anglicus Atholville beds near the western end of the Campbellton Formation exposure. A eurypterid. P. sp.A eurypterid.ScorpionUnnamedNear the Dalhousie Junction and Point la Nim areas.A scorpion with book lungs preserved.
Molluscs Genus Species Presence Material Notes ImagesCycloraC. valvatiformis A gastropod. C. imbricataA gastropod.
Plants Plants Genus Species Presence Material Notes ImagesBitelariaB. dubjanskiiFacies 1.A tracheophyte.ChaleuriaC. cirrosaFacies 5.A tracheophyte.DrepanophycusD. gaspianusFacies 1, 2, 3 and 5.A drepanophycale.D. spinaeformisFacies 1, 2, 3, 5 and 6.A drepanophycale.D. sp.Facies 1 and 5.A drepanophycale.KaulangiophytonFacies 1.A tracheophyte.LeclercqiaL. complexaFacies 1 and 4.A protolepidodendrale.L. andrewsiiFacies 1.A protolepidodendrale.LoganophytonL. dawsoniFacies 1, 4 and 5.A tracheophyte. OmniastrobusO. dawsonii "Impressions of strobili with numerous carbonized spore masses". OocampsaO. catheta"About ½ mi west of Dalhousie Junction."A tracheophyte.OricillaO. bilinearisFacies 1 and 5.A zosterophyll.PachythecaFacies 2.PerticaP. dalhousiiFacies 5.A tracheophyte.PsilophytonP. coniculumFacies 6.A trimerophytopsid.P. charientosFacies 1.A trimerophytopsid.P. princepsFacies 1, 3, 5 and 6.A trimerophytopsid.P. sp.Facies 1 and 5.A trimerophytopsid.SawdoniaS. acanthothecaFacies 1 and 2.A zosterophyll.S. ornataFacies 1 and 5.A zosterophyll.SpongiophytonS. minutissimumFacies 1, 2 and 6.StaphylophytonS. semiglobosa”Section 4”26 incomplete axesA zosterophyll.TaeniocradaT. dubiaFacies 2 and 5.A tracheophyte.TrimerophytonT. robustiusFacies 4.A trimerophytopsid.ZosterophyllumZ. divaricatum"South shore of the Restigouche River near Dalhousie, New Brunswick".A zosterophyll.
Fungi Genus Species Presence Material Notes Images Prototaxites Facies 2 and 6.
See also
List of fossiliferous stratigraphic units in New Brunswick
References