Name:
Rhamphocephalus
(Beak head).
Phonetic: Ram-fo-cef-a-lus.
Named By: Harry Govier Seeley - 1880.
Classification: Chordata, Reptilia, Pterosauria,
Rhamphorhynchoidea.
Species: R. bucklandi, R. depressirostris,
R. prestwichi.
Type: Exact diet unknown but certainly carnivorous
as a base.
Size: Estimated 2 meter wingspan.
Known locations: England, Oxfordshire - Taynton
Limestone Formation (Stonesfield Slate).
Time period: Bathonian of the Jurassic.
Fossil representation: Several specimens of jaw and
wing fragments.
Because
of the fragmentary nature of Rhamphocephalus
specimens it is hard to
determine the kind of pterosaur that it was in life. Also the poor
preservation of the specimens have led many to doubt if they actually
represent a new genus, in fact the term wastebasket taxon has been
applied to Rhamphocephalus much like it used to be
applied to
Pterodactylus.
The
only thing that has been ascertained is that Rhamphocephalus
was a
basal pterosaur of the Rhamphorhyncoidea. Aside from its earlier
presence in the fossil record, the wings between basal and advanced
pterosaurs are proportionately different in the bone sizes.
Further reading
- On Rhamphorhynchus bucklandi a new pterosaurian
from the Stonesfield
Slate. - Quarterly Journal of the Geological Society of London. - T. H.
Huxley - 1859.
- On the Rhamphocephalus prestwichi, Seeley, an
ornithosaurian from the
Stonesfield Slate of Kineton. - Quarterly Journal of the Geological
Society 36:27-30. - H. G. Seeley - 1880.