Headon Hill Lignite Bed, Isle of Wight (Eocene of the United Kingdom)

Where: England, United Kingdom (50.6° N, 1.6° W: paleocoordinates 49.1° N, 5.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Upper Headon Beds Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• this bed occurs within the Upper Headon Limestone, outcropping about a third of the way up the vertical cliff formed by the limestone on the south-west seaward face of Headon Hill; the lignite mainly infills an irregular erosion surface in the underlying limestone. This is the lignite between Bosma's HH3 and HH4 collections

• bed-level stratigraphic resolution

Environment/lithology: silty, sandy, calcareous claystone and lenticular, black, brown lignite

• overall lithology is claystone with interbedded marl (some silty/sandy) and limestone, this unit is a friable black/brown lignite that infills solution channels

Size classes: macrofossils, mesofossils, microfossils

Collection methods: sieve

Primary reference: P. E. Cray. 1973. Marsupialia, Insectivora, Primates, Creodonta and Carnivora from the Headon Beds (upper Eocene) of southern England. Bulletin of the British Museum (Natural History). Geology Series 23(1):1-102 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40030: authorized by John Alroy, entered by Erin Leckey on 15.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Basommatophora - Planorbidae
Planorbina spp. Haldeman 1843 pulmonate
 Basommatophora - Lymnaeidae
Galba spp. Schrank 1803 pulmonate
 Teleostei -
? Teleostei indet.
one small badly preserved jaw fragment, ?fish
 Testudines - Panemydidae
Emys sp. Dumeril 1806 pond turtle
"dermal scutes and other bones"
 Crocodylia - Diplocynodontidae
Diplocynodon sp. Pomel 1847 crocodilian
isolated teeth
 Primates - Adapidae
Adapis parisiensis Blainville 1841 primate
 Primates - Omomyidae
Microchoerus erinaceus Wood 1844 primate
 Rodentia - Theridomyidae
Theridomyidae indet. Alston 1876 rodent
 Condylarthra - Paroxyclaenidae
"Dyspterna hopwoodi n. sp." = Euhookeria hopwoodi
"Dyspterna hopwoodi n. sp." = Euhookeria hopwoodi Cray 1973 placental
 Perissodactyla - Pachynolophidae
Plagiolophus annectens Owen 1847 odd-toed ungulate
 Perissodactyla - Palaeotheriidae
Palaeotherium sp. Cuvier 1804 odd-toed ungulate
Palaeotherium muehlbergi Stehlin 1904 odd-toed ungulate
P. muehlbergi muehlbergi and P. muehlbergi praecursum
 Tribosphenida - Nyctitheriidae
Arvaldus stintoni n. gen. n. sp.
Arvaldus stintoni n. gen. n. sp. Cray 1973 placental
 Hyaenodonta - Hyaenodontidae
 Theriiformes - Herpetotheriidae
Peratherium "sp. A" Aymard 1850 marsupial
 Artiodactyla - Xiphodontidae
Dichodon cuspidatus Owen 1847 even-toed ungulate
 Artiodactyla - Choeropotamidae
Haplobunodon lydekkeri Stehlin 1908 even-toed ungulate
 Pinales - Pinaceae
Pinus sp. Linnaeus 1753 pine
 Juglandales - Hamamelidae
Myrica sp. Linnaeus