Scalby
Description
Source: Wikipédia
The Scalby Formation is a geological formation in England. Part of the Ravenscar Group, it was deposited in the Bathonian stage of the Middle Jurassic. The lower Moor Grit Member has a lithology consisting of medium to coarse grained cross bedded sandstone, with thin beds of mudstone and siltstone, while the upper Long Nab Member has a lithology consisting of predominantly laminated mudstone and siltstone, with fine to medium grained planar and cross stratified sandstones. The formation is thought to have accumulated on a floodplain, with a seasonally dry climate.
Fossilized dinosaur tracks have been found in the Scalby Formation; these include a recently discovered footprint from a large theropod, probably a megalosaurid. The track is from the Long Nab Member, and has been assigned to the ichnogenus Megalosauripus.
Like other members of the Ravenscar Group, the formation is well known for its plant fossils (including pollen), which consist of Ginkgoales (including the living genus Ginkgo), Czekanowskiales, bennettitaleans, cheirolepidacean and araucarian conifers, ferns, lycophytes, and seed ferns including Caytoniales.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 11
Scalby Bay tracksites : England - Yorkshire 55488 69312 76597 sites along Scalby Bay from N end to middle (0316 9152) to S end, as well as "south of Cromer Point, Scalby Bay", all in same set of beds. Includes Jackson Bay trackway (0298 9201)- Cromer Point tracksite : England - Yorkshire 69312 Cromer Point, N of Scarborough
- Scarborough cliff tracksite : England - North Yorkshire 27722 27832 82858 at the foot of a cliff, about 3.5 mi N of Scarborough
- Bloody Beck, Harwood Dale : England - North Yorkshire 27731 27832 69312 Bloody Beck, at the head of Harwood Dale; in the Fylingdales Moor
- Loskey Beck tracksite : England - North Yorkshire 27731 27832 69312 Loskey Beck, between Rosedale and Farndale; in Spaunton Moor, N of Kirby Moorside
- Cromer Point, Scarborough : England - North Yorkshire 27782 apparently from the foreshore north of Scarborough, suggested to have been just S of Cromer Point (which is 0.75 mi N of Scarborough)
- Hundale Point : England - North Yorkshire 27782 tracks visible SW of Hundale Point, 3 mi (5 km) N of Scarborough
- Black Rocks tracksite : England - North Yorkshire 27832 69312 Black Rocks, S of Scarborough, TA 051868
- Cornelian Bay tracksite : England - Yorkshire 55488 69312 78889 Cornelian Bay
- Gristhorpe Bay tracksite : England - Yorkshire 69312 loose blocks along shore of Gristhorpe Bay
- south side, Long Nab Point tracksite : England - Yorkshire 78889 from the S side of Long Nab Point, Burniston Bay
Publication(s)
La base comprend 9 publication(s).
Source: The Paleobiology Database
- ↑1 2 3 4 5 6 7 8 9 10 11 M. Romano and M. A. Whyte. 2003. Jurassic dinosaur tracks and trackways of the Cleveland Basin, Yorkshire: preservation, diversity and distribution. Proceedings of the Yorkshire Geological Society 54(3):185-215 (https://doi.org/10.1144/pygs.54.3.185)
- ↑1 2 M. Romano, M. A. Whyte, and S. J. Jackson. 2007. Trackway ratio: A new look at trackway gauge in the analysis of quadrupedal dinosaur trackways and its implications for ichnotaxonomy. Ichnos 14(3–4):257-270 (https://doi.org/10.1080/10420940601050014)
- ↑1 D. Marty, M. Belvedere, and N. L. Razzolini, M. G. Lockley, G. Paratte, M. Cattin, C. Lovis, C. A. Meyer. 2018. The tracks of giant theropods (Jurabrontes curtedulensis ichnogen. & ichnosp. nov.) from the Late Jurassic of NW Switzerland: palaeoecological & palaeogeographical implications. Historical Biology 30:928-956 (https://doi.org/10.1080/08912963.2017.1324438)
- ↑1 2 J. A. Hargreaves. 1913. Fossil footprints near Scarborough. The Naturalist 1913:92-95
- ↑1 2 3 4 5 M. A. Whyte and M. Romano. 1981. A footprint in the sands of time. Journal of the University of Sheffield Geological Society 7(6):323-330
- ↑1 W. A. S. Sarjeant. 1974. A history and bibliography of the study of fossil vertebrate footprints in the British Isles. Palaeogeography, Palaeoclimatology, Palaeoecology 16:265-378 (https://doi.org/10.1016/0031-0182(74)90024-8)
- ↑1 2 3 4 M. Black. 1929. Drifted plant-beds of the Upper Estuarine Series of Yorkshire. Quarterly Journal of the Geological Society of London 85(4):389-439 (https://doi.org/10.1144/gsl.jgs.1929.085.01-04.13)
- ↑1 2 3 4 J. B. Delair and W. A. S. Sarjeant. 1985. History and bibliography of the study of fossil vertebrate footprints in the British Isles: supplement 1973–1983. Palaeogeography, Palaeoclimatology, Palaeoecology 49:123-160 (https://doi.org/10.1016/0031-0182(85)90007-0)
- ↑1 2 3 M. Romano and M. A. Whyte. 2012. Information on the foot morphology, pedal skin texture and limb dynamics of sauropods: evidence from the ichnological record of the Middle Jurassic of the Cleveland Basin, Yorkshire, UK. Zubía 30:45-92