Also known as Hordwell
Where: England, United Kingdom (50.7° N, 1.6° W: paleocoordinates 49.2° N, 5.5° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Headon Beds Formation, Late/Upper Eocene (37.2 - 33.9 Ma)
• this bed is synonymous with the "Limnaea Marl" and is in the upper portion of the Lower Headon Beds, (less than 1 m from the top) at this locality. In her publications, M. of Hastings separated this into two units (her Stratum 1 and 2).
• bed-level stratigraphic resolution
Environment/lithology: marine; shelly/skeletal, argillaceous marl and concretionary, ferruginous, sandy, calcareous claystone
Size classes: macrofossils, mesofossils
Collection methods: In 1852, the Marchioness of Hastings published an almost identical paper to her 1853 report. I used the later English version, but the earlier paper is the more primary reference.
Primary reference: S. Wood. 1844. Record of the discovery of an Alligator with several new Mammalia in the Freshwater Strata at Hordwell. Annals and Magazine of Natural History 14:349-351 [J. Alroy/E. Leckey/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39662: authorized by John Alroy, entered by Erin Leckey on 02.06.2004, edited by Jason Head, Collin VanBuren, Terri Cleary and Juan Benito Moreno
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Foraminifera | |
Cristellaria sp.10 Lamarck 1816 | |
Gastropoda | |
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Planorbis spp.10 Muller 1774 snail two species, M. of Hastings casts doubt on the presence of this genus
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"Ancillaria subulata" = Ancilla10
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"Cerithium ventricosum" = Palaeotriton venustus10
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"Voluta ? spinosa" = Athleta (Volutospina) spinosa10
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"Murex sexdentatus" = Jsowerbya sexdentatus10
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Bivalvia | |
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"Psammobia compressa" = Gari (Psammobia)10
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"Mya angustata" = Sphenia angustata10
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Polychaeta | |
Thecostraca | |
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Reptilia | |
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Hordleophis balconae n. gen. n. sp.3, Palaeopython cadurcensis6, Totlandophis thomasae n. gen. n. sp.4, Paraplatyspondylia batesi n. gen. n. sp.6, Cadurceryx pearchi n. sp.6
Hordleophis balconae n. gen. n. sp.3 Holman 1996 boa MSUVP 1361 (holotype), trunk vertebrae; MSUVP 1362-1364, three trunk vertebrae
Palaeopython cadurcensis6 Filhol 1877 boa MSUVP 2051-2052, two anterior trunk vertebrae; MSUVP 2053, mid-trunk vertebra
Totlandophis thomasae n. gen. n. sp.4 Holman and Harrison 1998 boa MSUVP 1458 (holotype), single trunk vertebra; MSUVP 1459-1475, 17 vertebrae
Paraplatyspondylia batesi n. gen. n. sp.6 Holman and Harrison 1998 boa MSUVP 1434 (holotype), single mid-trunk vertebrae; MSUVP 1435-1453, 19 trunk vertebrae
Cadurceryx pearchi n. sp.6 Holman et al. 2006 sand boa MSUVP 2061 (holotype), single caudal vertebra; MSUVP 2062, 2059, 2063-2064, four caudal vertebrae
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Mammalia | |
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Eotalpa anglica8 Sigé et al. 1977 mole Left and right metacarpal III (HZM.128.26514); two left astragali (HZM.104.25560, 105.25561); right astragalus (HZM.91.25423); left calcaneum (HZM.60.23445)
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Amphibia | |
Thaumastosaurus wardi5 Holman and Harrison 2002 frog MSUVP 1986 (paratype, posterior half of lamella alaris squamosi of left squamosal), MSUVP 1995 (right maxilla), MSUVP 2036 (right ilium)
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Adelomys | |
Limnaea | |
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Cytherina | |