Vertebrate ichnites from the Boulder Creek Formation (Lower Cretaceous: middle to ?upper Albian) of northeastern British Columbia, with a description of a new avian ichnotaxon, Paxavipes babcockensis ichnogen. et isp. nov.

McCrea, Richard T.; Buckley, Lisa G.; Plint, A. Guy; Lockley, Martin G.; Matthews, Neffra A.; Noble, Tommy A.; Xing, Lida; Krawetz, Jessica R.

doi:10.1016/j.cretres.2015.01.004

Cited by 23 publications

(9 citation statements)

References 28 publications

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“…Question marks indicate possible presence. Taxonomic presence from the skeletal record is based on [ 8 , 10 , 14 – 16 ], while occurrences from the track record are collated from [ 8 , 10 , 11 , 17 , 35 – 37 ] and herein. Silhouettes are not to scale and were sourced from PhyloPic.…”

Section: Discussionmentioning

confidence: 99%

“…The vertebrate track record of the Wapiti Formation, which crops out in NW Alberta and NE British Columbia, largely consists of isolated, ex-situ prints that occur on fallen blocks found on modern river margins [ 8 – 11 ]. Indeed, the vast majority of vertebrate fossils from the Wapiti Formation are recovered as isolated remains from alongside rivers, where cliff and bank exposures provide the best access to the fossil-bearing strata.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, a rich vertebrate fossil record from the formation is emerging, and already includes skeletal remains of a variety of theropod, hadrosaurid, ceratopsian, ankylosaurian, and possible thescelosaurid dinosaurs [ 8 , 10 , 12 – 16 ]. Excluding the locality described herein, only a single large in-situ tracksite has previously been described from the formation, which preserves footprints attributed to Hadrosauropodus , Bellatoripes fredlundi and Saurexallopus cordata , near Tumbler Ridge in British Columbia [ 11 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada

et al. 2022

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The Wapiti Formation of northwest Alberta and northeast British Columbia, Canada, preserves an Upper Cretaceous terrestrial vertebrate fauna that is latitudinally situated between those documented further north in Alaska and those from southern Alberta and the contiguous U.S.A. Therefore, the Wapiti Formation is important for identifying broad patterns in vertebrate ecology, diversity, and distribution across Laramidia during the latest Cretaceous. Tracksites are especially useful as they provide a range of palaeoecological, palaeoenvironmental, and behavioural data that are complementary to the skeletal record. Here, we describe the Tyrants Aisle locality, the largest in-situ tracksite known from the Wapiti Formation. The site occurs in the lower part of Unit 4 of the formation (~72.5 Ma, upper Campanian), exposed along the southern bank of the Redwillow River. More than 100 tracks are documented across at least three distinct track-bearing layers, which were deposited on an alluvial floodplain. Hadrosaurid tracks are most abundant, and are referable to Hadrosauropodus based on track width exceeding track length, broad digits, and rounded or bilobed heel margins. We suggest the hadrosaurid trackmaker was Edmontosaurus regalis based on stratigraphic context. Tyrannosaurids, probable troodontids, possible ornithomimids, and possible azhdarchid pterosaurs represent minor but notable elements of the ichnofauna, as the latter is unknown from skeletal remains within the Wapiti Formation, and all others are poorly represented. Possible social behaviour is inferred for some of the hadrosaurid and small theropod-like trackmakers based on trackway alignment, suitable spacing and consistent preservation. On a broad taxonomic level (i.e., family or above), ichnofaunal compositions indicate that hadrosaurids were palaeoecologically dominant across Laramidia during the late Campanian within both high-and low-latitude deposits, although the role of depositional environment requires further testing.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada

et al. 2022

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“…(E) One of a series of isolated, punch‐down structures at the rooted top of a sandier‐upward lagoonal succession (facies L2); the intense deformation and microfaulting suggest that these structures are dinosaur footprints made in unconsolidated sediment (cf. Lockley, ; McCrea et al ., ). Allomember PH , Joachim Creek, scale = 20 cm (Fig.…”

Section: Facies Associations and Depositional Environmentsmentioning

confidence: 97%

Tectonic, eustatic and climatic controls on marginal‐marine sedimentation across a flexural depocentre: Paddy Member of Peace River Formation (Late Albian), Western Canada Foreland Basin

Plint

Krawetz

Buckley

et al. 2017

The Depositional Record

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In north‐central Alberta and adjacent British Columbia, clastic strata of the middle to late Albian Peace River and Shaftesbury formations were deposited in alluvial to shallow‐marine environments across the foredeep of the Western Canada Foreland Basin. A high‐resolution, log and core‐based allostratigraphic framework for the Paddy Member of the Peace River Formation established nine allomembers, PA to PI, bounded by flooding surfaces and apparently equivalent non‐marine surfaces. Within the estimated 2 Myr. duration of the Paddy, allomembers allow the evolving palaeogeography and changing relationship between accommodation and sedimentation rates to be analysed on time‐steps on the order of 105 years. Paddy strata fill an arcuate depocentre ca 300 km wide, across which the rocks thin eastward from 125 m to ca 5 to 10 m. The northern part of the basin is occupied by muddy, offshore marine deposits that pass abruptly southward into a linear, WSW‐ENE‐trending body of sandstone deposited in a wave‐dominated barrier‐strandplain, at least 350 km long. Extending >200 km to the south of the strandplain was a region of shallow brackish to freshwater lagoons and lakes that graded to the SW into alluvial facies. Within the lagoon region, few‐m thick, elongate and patchy sandstones represent river‐dominated deltas. In allomembers PA to PG, these sandstones are concentrated in the west and south, implying supply from the western Cordillera. In allomembers PH and PI, sandstones are mainly in the east and have a distinctive, quartz‐rich composition. They can be correlated eastward into the coeval Pelican Formation, and were sourced probably from the Canadian Shield on the opposite side of the basin. In the western foredeep, alluvial rocks comprise aggradational, unconfined floodplain deposits with ribbon sandstones, dissected, on at least nine separate levels, by palaeovalleys that are confined to the proximal foredeep. Valleys are 10 to 30 m deep, few km wide, and filled with multi‐storey channel‐bars of pebbly coarse sandstone or conglomerate. Valleys cut down from well‐developed interfluve palaeosols that record a falling and then rising water table. Alternating aggradation and degradation, and advance and retreat of the alluvial gravel front is attributed to cycles of varying rainfall intensity, rather than tectonism or eustasy. Apparently, coeval transgressive‐regressive successions in the lagoon and marine regions are attributed to few‐m scale eustatic changes. On the NE margin of the basin, tidal sandstone fills a northward‐opening estuary cut on the basal Paddy unconformity. This sandstone contains the first well‐documented specimens of Gnesioceramus comancheanus (Cragin), proving contemporaneity with at least part of the marine Joli Fou Formation to the east. Paddy allomembers change shape upward from short blunt wedges, through more acutely tapered wedges, to sheets. This change reflects initially rapid flexural subsidence, attributed to active thickening of the adjacent orogenic wedge. A waning rate of def...

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“…Non-marine deposits of the upper Campanian-lower Maastrichtian Wapiti Formation are also present in easternmost BC extending into west-central Alberta (e.g., Fanti and Catuneanu, 2009). Several formations in the Peace region have gained recognition for their wealth of dinosaur fossils and trackways (e.g., Rylaarsdam et al, 2006;Fanti et al, 2013;McCrea et al, 2015).…”

Section: Cretaceous and Lower Paleogene Stratigraphy Of British Columbiamentioning

confidence: 99%

Vesiculation in the dinoflagellate cyst Cannosphaeropsis franciscana Damassa, 1979 across the K/Pg boundary (Vancouver Island, Canada) with implications for spiniferate gonyaulacacean taxonomy and ecophenotypy

McLachlan

Pospelova²,

Humphrey

2021

Review of Palaeobotany and Palynology

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Vertebrate ichnites from the Boulder Creek Formation (Lower Cretaceous: middle to ?upper Albian) of northeastern British Columbia, with a description of a new avian ichnotaxon, Paxavipes babcockensis ichnogen. et isp. nov.

Cited by 23 publications

References 28 publications

The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada

The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada

Tectonic, eustatic and climatic controls on marginal‐marine sedimentation across a flexural depocentre: Paddy Member of Peace River Formation (Late Albian), Western Canada Foreland Basin

Vesiculation in the dinoflagellate cyst Cannosphaeropsis franciscana Damassa, 1979 across the K/Pg boundary (Vancouver Island, Canada) with implications for spiniferate gonyaulacacean taxonomy and ecophenotypy

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