Record number JS151         Number of items 1         Related record MRW : BE190130-1         Related record MRW : BE190130-2         Identification           Simple name fossil         Full name mammoth right mandible and molar         Other name steppe mammoth         Named collection Beeston Mammoth         Classified name Mammalia & Proboscidea & Elephantidae & Mammuthus trogontherii             System Linnaean             Status               Currency               Authority3 Lister, Adrian (NHM, London)             Authority3 Saarinen, Juha (University of Helsinki)         Authority           Brief description Fossil, mammoth right mandible and molar (steppe mammoth, Mammuthus trogontherii); in situ find from the Lower Pleistocene deposits, Cromer Forest-bed Formation (Beeston Member, bed q) of Beeston Regis beach, in a loose block found fresh ly fallen at the base of the cliff; 52 m east of Beeston Regis datum, 16 m north of the revetment; encased in a ferricreted, orange, non-shelly, matrix-supported, sandy gravel with grey clay adhering to one side, Beeston Regis, Norfolk, UK         Description           Form mandible (right mandible with m3 in situ)         Field collection           Place & & Beeston Regis & Norfolk & UK             Site name Beeston Regis beach                 Note4 in a loose block found freshly fallen at the base of the cliff; 52 m east of Beeston Regis datum, 16 m north of the revetment; encased in a ferricreted, orange, non-shelly, matrix-supported, sandy gravel with grey clay adhering to one si de             Locality number BE52E             Coordinates geocoordinates : 52°56'37.05"N, 1°13'38.37"E             Relative position               Stratigraphy rock : Cromer Forest-bed Formation & Beeston Member & bed q                 Note4 stoney sand with iron-bound patches at the level of the mammoth remains             Stratigraphy stage : Beestonian             Stratigraphy age : Pleistocene & Lower Pleistocene             Stratigraphy                   Note4               Note3           Method in situ find         Person collector : Stewart, Jonathan         Date 12.12.2017         Collection number           Permanent location           Recorder MRW : 6.1.2018         Description           Completeness incomplete (only left half of the mandible; the ascending ramus is missing and the molar is damaged, fortuitously exposing the interior structure of the tooth)         Condition           Part:dimen:reading : :         Part:aspect:desc           Conservation           Method           Person conservator : JS         Date 2017         Note           Reference number           Photography           Method           Person photographer : MRW         Date 2017         Photograph number           Photograph number         180106_1.jpg             Type3 digitised image       180106_2.jpg             Type3 digitised image         Process           Type           Method           Person :         Date           Note           Reference number           Research           Date 3.6.2019         Person palaeontologist : Saarinen, Juha         Note Length of molar 300 mm; width 136.9 mm; height (heavily worn [144.6]; lamellar frequency 7.5; enamel thickness 1; plicae amplitude 2.2 mm; plicae frequency 6; N lamellae 18; mesowear angles - 6th lamella 118.8, 7th lamella 123.5, mean me sowear 121.15         Result measurements         Research           Date 2018         Person palaeontologist : Dickinson, Marc (University of York) & Penkman, Kirsty and Lister, Adrian         Note Sampled for enamel AAR analysis         Result not processed due to lack of laboratory time         Documentation group           Link jsbeeston.html         Documentation group           Link           Class           Reference Dickinson, M., Penkman, K. and Lister, M. : 2018 October : A new method for enamel amino acid raceization dating: a closed system approach :         Reference number           Notes Juha Saarinen of University of Helsinki visited JS Saturday 1.6.2019 and took measurements of all the recent mammoth remains from Beeston in Jon's collection (JS151, JS224, JS225 and JS193). These are all thought to be from the same anim al whose skeletal remains are gradually eroding from the cliff. Measurements are included in the Modes record for each specimen but the conclusions he draws state that: "The measurements of the mammoth molars definitely indicate 'Mammuthis trogontherii', but possibly quite an early member of that series (because the teeth do not seem very high crowned, but this could simply be because they are so heavily worn). The mesowear angle measurements indicate quite heavily grass-dominated diet for the Beeston mammoth teeth (more than 70 percent grass). I also calculated the body mass estimate based on measurements of the femur, and that is ca. 8800 kg (which is much more than in modern elephants, and quite typical for early Middle Pleistocene Mammuthus trogontherii)."         Notes A whole mandible (both sides) of the mammoth M. trogontherii was recovered by A.J. Stuart prior to 1980 in situ from the base of a gravel mapped by R.G. West as bed o resting upside down on a silt, bed k. Thought to be Beestonian and stratigraphically beneath this specimen. It is in the collection of the Zoological Museum, University of Cambridge, Downing Street, Cambridge.         Admin category importance : 1         Note Part of skeleton group of the large 'Beeston Mammoth' Mammuthus trogontherii emerging from the cliff. The width of the tooth is much higher than recorded in other M. trogontherii. It has 17 plates preserved (incomplete)