The McCoy Brook Formation rests on the North Mountain Basalt, one of the volcanic flows associated with the Triassic–Jurassic boundary in the Newark Supergroup. The base of the McCoy Brook Formation is probably within 100,000 to 200,000 years of the boundary.[2]
Scots Bay Memberedit
This thin unit (9 m) of lacustrine sediments is preserved in six small synclinal outcrops around Scots Bay on the west side of the Blomidon Peninsula. Originally named as the Scots Bay Formation, it is now correlated with the lowermost part of the McCoy Brook Formation, where it is referred to as the Scots Bay Member.[3][4] The Scots Bay Member accumulated in an aerobic lake on the floor of the subtropical Fundy Rift Valley, associated with Silica-rich Hydrothermal Springs derived from the CAMP vulcanism, where the biota is composed of algal Stromatolites, Oncolites, Charophyta, Ostracoda, Gastropoda, Conchostraca, fish bones, calcispheres and logs.[5]
YPM VPPU 022196, several vertebrae and limb-bone fragments
FGM994GF69, postcranial skeleton
FGM998GF9, partial skeleton
FGM998GF13_I, large, articulated specimen
FGM998GF13/FGM998GF13_III postcranea and dissociated skull
NSM005GF009/FGM998GF46, partial, badly deformed and fragmentary skeleton with gastroliths
Although long assigned to Ammosaurus, the material actually represents a new genus and species; represents the most abundant dinosaur in the formation, and has yield specimens with preserved stomach contents that suggest migration patterns. The possibility that represents more than one genus is open.[6]
^ abVan Drecht, L. (2014). "Sedimentology and Paleoenvironment of an Early Jurassic Dinosaur Bone Bed, Wasson Bluff, Parrsboro, Nova Scotia" (PDF). Submitted in Partial Fulfillment of the Requirements For the Degree of Bachelor of Sciences, Honours Department of Earth Sciences Dalhousie University, Halifax: 1–80. Retrieved 11 October 2023.
^ abcdefghijkShubin, N. H.; Olsen, P. E.; Sues, H.-D. (1994). "Early Jurassic small tetrapods from the McCoy Brook Formation of Nova Scotia, Canada". In Fraser, N. C.; Sues H. D. (eds.). In the Shadow of the Dinosaurs. Cambridge, United Kingdom: Cambridge University Press. pp. 242–250. ISBN0-521-45899-4.
^Tanner, L.H. (1996). "Formal definition of the Lower Jurassic McCoy Brook Formation, Fundy Rift Basin, eastern Canada". Atlantic Geology. 32: 127–135. Retrieved 15 December 2012.
^Hassan, H.S. "Sedimentology and Paleontology of the Lower Jurassic Scots Bay Formation, Bay of Fundy, Nova Scotia, Canada" (PDF). MSc thesis. Retrieved 24 November 2012.
^De WET, C. C. B.; Hubert, J. F. (1989). "The Scots Bay formation, Nova Scotia, Canada, a Jurassic carbonate lake with Silica‐rich hydrothermal springs". Sedimentology. 36 (5): 857–873. Retrieved 11 October 2023.
^ abcdefghijklmnSues, H. D.; Olsen, P. E. (2015). "Stratigraphic and temporal context and faunal diversity of Permian-Jurassic continental tetrapod assemblages from the Fundy rift basin, eastern Canada". Atlantic Geology. 51 (1): 139–205. Retrieved 11 October 2023.
^ abcdefghiOlsen, P. E. (1988). "Paleontology and paleoecology of the Newark Supergroup (early Mesozoic, eastern North America)". Developments in Geotectonics. 22 (1): 185–230. Retrieved 11 October 2023.
^ abcFedak, Tim; Sues, Hans-Dieter; Olsen, Paul E. (2015). "First record of the tritylodontid cynodont Oligokyphus and cynodont postcranial bones from the McCoy Brook Formation of Nova Scotia, Canada". Canadian Journal of Earth Sciences. 52 (4): 1–7. Retrieved 11 October 2023.
^Shubin, N. H.; Crompton, A. W.; Sues, H.D.; Olsen, P. E. (1991). "New fossil evidence on the sister-group of mammals and early Mesozoic faunal distributions". Science. 251: 1063–1065. Retrieved 11 October 2023.
^ abcSues, H.-D.; Shubin, N. H.; Olsen, P. E. (1994). "A new sphenodontian (Lepidosauria: Rhynchocephalia) from the McCoy Brook Formation (Lower Jurassic) of Nova Scotia, Canada". Journal of Vertebrate Paleontology. 14 (3): 327–340. doi:10.1080/02724634.1994.10011563.
^ abcSues, H.-D.; Shubin, N. H.; Olsen, P. E.; Amaral, W. W. (1996). "On the cranial structure of a new protosuchid (Archosauria: Crocodyliformes) from the McCoy Brook Formation (Lower Jurassic) of Nova Scotia, Canada". Journal of Vertebrate Paleontology. 16 (1): 34–41. doi:10.1080/02724634.1996.10011281.
^Fedak, Timothy J. (2007). "Description and evolutionary significance of the sauropodomorph dinosaurs from the early Jurassic (Hettangian) McCoy Brook Formation". Thesis (Ph.D.)--Dalhousie University (Canada) (1–271). Retrieved 11 October 2023.
^ abOlsen, P. E. (1989). "Stop 11.3: Wasson Bluff. Paleontology". Tectonic, Depositional, and Paleoecological History of Early Mesozoic Rift Basins, Eastern North America. 351 (2): 159–161.
^Grantham, R. G. (1986). "Dinosaur tracks and mega-flutes in the Jurassic of Nova Scotia". First International Symposium on Dinosaur Tracks and Traces. 14.
April 09, 2024
mccoy, brook, formation, geological, formation, dating, roughly, between, million, years, covering, hettangian, sinemurian, stages, found, outcrops, around, fundy, nova, scotia, stratigraphic, range, hettangian, sinemurian, preꞒ, nbreccia, jurassic, wasson, bl. The McCoy Brook Formation is a geological formation dating to roughly between 200 and 190 million years ago and covering the Hettangian to Sinemurian stages The McCoy Brook Formation is found in outcrops around the Bay of Fundy Nova Scotia 1 McCoy Brook FormationStratigraphic range Hettangian Sinemurian PreꞒ Ꞓ O S D C P T J K Pg NBreccia in the McCoy Brook Formation Jurassic Wasson s Bluff Nova Scotia TypeGeological formationUnit ofNewark Supergroup Meriden GroupSub unitsScots Bay MemberUnderliesErosional topOverliesNorth Mountain BasaltThicknessmore than 230 m 750 ft LocationCoordinates45 24 N 64 12 W 45 4 N 64 2 W 45 4 64 2Approximate paleocoordinates27 24 N 13 18 W 27 4 N 13 3 W 27 4 13 3Region Nova ScotiaCountry CanadaExtentBay of FundyType sectionNamed forMcCoy Brook Nova ScotiaMcCoy Brook Formation Canada Show map of CanadaMcCoy Brook Formation Nova Scotia Show map of Nova Scotia Contents 1 Agen 2 Scots Bay Member 3 Fossil content 3 1 Sharks 3 2 Ray finned fish 3 3 Synapsids 3 4 Sphenodonts 3 5 Crocodyliforms 3 6 Dinosaurs 3 6 1 Ornithischia 3 6 2 Theropoda 3 6 3 Sauropodomorpha 3 7 Ichnotaxa 4 See also 5 ReferencesAgen editThe McCoy Brook Formation rests on the North Mountain Basalt one of the volcanic flows associated with the Triassic Jurassic boundary in the Newark Supergroup The base of the McCoy Brook Formation is probably within 100 000 to 200 000 years of the boundary 2 Scots Bay Member editThis thin unit 9 m of lacustrine sediments is preserved in six small synclinal outcrops around Scots Bay on the west side of the Blomidon Peninsula Originally named as the Scots Bay Formation it is now correlated with the lowermost part of the McCoy Brook Formation where it is referred to as the Scots Bay Member 3 4 The Scots Bay Member accumulated in an aerobic lake on the floor of the subtropical Fundy Rift Valley associated with Silica rich Hydrothermal Springs derived from the CAMP vulcanism where the biota is composed of algal Stromatolites Oncolites Charophyta Ostracoda Gastropoda Conchostraca fish bones calcispheres and logs 5 Fossil content editSharks edit Color keyTaxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon Notes Uncertain or tentative taxa are in small text crossed out taxa are discredited SharksName Species Location Stratigraphic position Material Notescf Hybodus 2 6 Indeterminate Wasson Bluff Scots Bay member Teeth amp Coprolites A hybodont shark Recovered from lacustrine facies nbsp Two HybodusRay finned fish edit Ray finned fishName Species Location Stratigraphic position Material Notes Images Redfieldiid 2 7 None designated Wasson Bluff Scots Bay member Scales and skull bones 2 Found in lacustrine limestone and lacustrine basalt aggregateaff Semionotus sp 2 7 None designated Wasson Bluff Scots Bay member Disarticulated remains Found in lacustrine limestone lacustrine basalt aggregate and lacustrine mudstone nbsp SemionotusSynapsids edit SynapsidsName Species Location Stratigraphic position Material Notes ImagesCynodontia 7 8 Indeterminate Wasson Bluff Scots Bay Member Partial right unla Proximal portion of a right ischium A cynodontOligokyphus 7 8 Oligokyphus sp Wasson Bluff Scots Bay Member Fragment of a right Dentary A tritheledontid cynodont found in the layers of the Scots Bay member nbsp OligokyphusPachygenelus 7 9 cf P monus Wasson Bluff Upper Member Excellently preserved fragments of two premaxillae ten maxillae and six dentaries A tritheledontid cynodont nbsp PachygenelusTritylodontidae 7 8 Indeterminate Wasson Bluff Scots Bay Member Right humerus A tritylodontid cynodont found in the layers of the Scots Bay member Sphenodonts edit SphenodontsName Species Location Stratigraphic position Material Notes ImagesClevosaurus 10 C bairdi 10 Wasson Bluff Lower McCoy Brook Formation Partial skulls and jaws isolated cranial bones partial postcranium postcranial bones A sphenodontian of relatively small size 10 found in fluvio lacustrine sandstone and mudstone and basalt agglomerate nbsp Clevosauruscf Palycymalia 6 7 Indeterminate Wasson Bluff Middle McCoy Brook Formation Isolated Remains A sphenodontiancf Sigmala 6 7 Indeterminate Wasson Bluff Middle McCoy Brook Formation Isolated Remains A sphenodontianCrocodyliforms edit ProtosuchidaeGenus Species Location Stratigraphic position Material Notes ImagesProtosuchus 6 11 P micmac 11 Wasson Bluff Lower McCoy Brook Formation Partial lower jaw several other skull bones 11 Found in fluvio lacustrine sandstone and mudstone and basalt agglomerate 2 nbsp ProtosuchusSphenosuchid 2 6 Indeterminate Blue sack west Wasson Bluff Lower McCoy Brook Formation A maxilla Isolated Osteoderms Found in fluvio lacustrine sandstone and mudstone and basalt agglomerateDinosaurs edit Ornithischia edit OrnithischiansGenus Species Location Stratigraphic position Material NotesOrnithischia 2 7 6 Indeterminate Wasson Bluff Scots Bay Member Impressions of teeth YPM VP 008668 VP 008691 Vertebral centra YPM VP 008693 Possible rib fragments YPM VP008694 VP 008695 Suggested to be similar to Scutellosaurus and to Leshotosaurus Represent among the oldest reliable Ornithischian remains of North America Theropoda edit OrnithischiansGenus Species Location Stratigraphic position Material NotesTheropoda 1 6 Indeterminate Wasson Bluff Scots Bay Member Teeth Theropod dinosaur teeth similar to Megapnosaurus Sauropodomorpha edit Sauropodomorph dinosaursGenus Species Location Stratigraphic position Material Notes ImagesFendusaurus 12 F eldoni Wasson Bluff Middle McCoy Brook Formation YPM VPPU 022196 several vertebrae and limb bone fragments FGM994GF69 postcranial skeleton FGM998GF9 partial skeleton FGM998GF13 I large articulated specimen FGM998GF13 FGM998GF13 III postcranea and dissociated skull NSM005GF009 FGM998GF46 partial badly deformed and fragmentary skeleton with gastroliths Although long assigned to Ammosaurus the material actually represents a new genus and species represents the most abundant dinosaur in the formation and has yield specimens with preserved stomach contents that suggest migration patterns The possibility that represents more than one genus is open 6 Ichnotaxa edit Color keyTaxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon Notes Uncertain or tentative taxa are in small text crossed out taxa are discredited IchnotaxaGenus Species Location Stratigraphic position Material Notes ImagesAnchisauripus 6 A sillimani A ispp Blue sack west McKay Head Wasson Bluff Middle McCoy Brook Formation Footprints Small Theropod FootprintsAnomoepus 2 6 A scambus A ispp Blue sack west McKay Head Old Wife Point tracksite Middle McCoy Brook Formation Footprints Ornithischian FootprintsBatrachopus 6 13 B deweyii B dispar B ispp McKay Head Old Wife Point tracksite Wasson Bluff tracksite Middle McCoy Brook Formation Footprints Crocodrylomorph FootprintsEubrontes 6 13 E giganteus E sillimani E minusculus E ispp Five Islands Provincial Park Old Wife Point tracksite Wasson Bluff tracksite Middle McCoy Brook Formation Footprints Medium sized Theropod FootprintsGrallator 2 6 G cursorius G tenuis G ispp McKay Head Old Wife Point tracksite Middle McCoy Brook Formation Footprints Small Theropod Footprints nbsp GrallatorOtozoum 6 2 14 O moodi O ispp Blue sack east McKay Head Minas Basin tracksite Middle McCoy Brook Formation Footprints Sauropodomorph Footprints nbsp OtozoumSee also editList of dinosaur bearing rock formations List of stratigraphic units with few dinosaur generaReferences edit a b Van Drecht L 2014 Sedimentology and Paleoenvironment of an Early Jurassic Dinosaur Bone Bed Wasson Bluff Parrsboro Nova Scotia PDF Submitted in Partial Fulfillment of the Requirements For the Degree of Bachelor of Sciences Honours Department of Earth Sciences Dalhousie University Halifax 1 80 Retrieved 11 October 2023 a b c d e f g h i j k Shubin N H Olsen P E Sues H D 1994 Early Jurassic small tetrapods from the McCoy Brook Formation of Nova Scotia Canada In Fraser N C Sues H D eds In the Shadow of the Dinosaurs Cambridge United Kingdom Cambridge University Press pp 242 250 ISBN 0 521 45899 4 Tanner L H 1996 Formal definition of the Lower Jurassic McCoy Brook Formation Fundy Rift Basin eastern Canada Atlantic Geology 32 127 135 Retrieved 15 December 2012 Hassan H S Sedimentology and Paleontology of the Lower Jurassic Scots Bay Formation Bay of Fundy Nova Scotia Canada PDF MSc thesis Retrieved 24 November 2012 De WET C C B Hubert J F 1989 The Scots Bay formation Nova Scotia Canada a Jurassic carbonate lake with Silica rich hydrothermal springs Sedimentology 36 5 857 873 Retrieved 11 October 2023 a b c d e f g h i j k l m n Sues H D Olsen P E 2015 Stratigraphic and temporal context and faunal diversity of Permian Jurassic continental tetrapod assemblages from the Fundy rift basin eastern Canada Atlantic Geology 51 1 139 205 Retrieved 11 October 2023 a b c d e f g h i Olsen P E 1988 Paleontology and paleoecology of the Newark Supergroup early Mesozoic eastern North America Developments in Geotectonics 22 1 185 230 Retrieved 11 October 2023 a b c Fedak Tim Sues Hans Dieter Olsen Paul E 2015 First record of the tritylodontid cynodont Oligokyphus and cynodont postcranial bones from the McCoy Brook Formation of Nova Scotia Canada Canadian Journal of Earth Sciences 52 4 1 7 Retrieved 11 October 2023 Shubin N H Crompton A W Sues H D Olsen P E 1991 New fossil evidence on the sister group of mammals and early Mesozoic faunal distributions Science 251 1063 1065 Retrieved 11 October 2023 a b c Sues H D Shubin N H Olsen P E 1994 A new sphenodontian Lepidosauria Rhynchocephalia from the McCoy Brook Formation Lower Jurassic of Nova Scotia Canada Journal of Vertebrate Paleontology 14 3 327 340 doi 10 1080 02724634 1994 10011563 a b c Sues H D Shubin N H Olsen P E Amaral W W 1996 On the cranial structure of a new protosuchid Archosauria Crocodyliformes from the McCoy Brook Formation Lower Jurassic of Nova Scotia Canada Journal of Vertebrate Paleontology 16 1 34 41 doi 10 1080 02724634 1996 10011281 Fedak Timothy J 2007 Description and evolutionary significance of the sauropodomorph dinosaurs from the early Jurassic Hettangian McCoy Brook Formation Thesis Ph D Dalhousie University Canada 1 271 Retrieved 11 October 2023 a b Olsen P E 1989 Stop 11 3 Wasson Bluff Paleontology Tectonic Depositional and Paleoecological History of Early Mesozoic Rift Basins Eastern North America 351 2 159 161 Grantham R G 1986 Dinosaur tracks and mega flutes in the Jurassic of Nova Scotia First International Symposium on Dinosaur Tracks and Traces 14 Retrieved from https en wikipedia org w index php title McCoy Brook Formation amp oldid 1216583254, wikipedia, wiki, book, books, library,
