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Brasilia bradfordensis (Buckman 1881)
Images: 
By Ludwigia (edited)
Taxonomy
Ammonite
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Ammonitida
Family: Graphoceratidae
Genus: Brasilia
Species: Brasilia bradfordensis
Author Citation Buckman 1881
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Middle
International Age: Late Aalenian
Stratigraphy
Achdorf Formation
Biostratigraphy
Bradfordensis zone
Provenance
Collector: Roger Furze
Date Collected: 03/26/2005
Acquired by: Field Collection
Dimensions
Diameter: 10 cm
Location
Clay pit
Geisingen a. d. Donau
Baden-Wuerttemberg
Germany
Comments
Index fossil of the bradfordensis zone. Phragmocone showing typical rib structure. The last photo shows another sample which illustrates how large these ammonites could get. The diameter is 20cm. and this is still just the phragmocone.
Lithology: Geisingen-Oolith
The Geisingen-Oolith is a horizon which was built and reworked over a long stretch of time at the coastal fringe of an arm of the Tethys ocean. Fauna from both the concavum and the bradfordensis zones are to be found in it.
Old German Chronostratigraphy: Dogger (Braunjura) beta
Literature: Dietze et al (2014): Aalenian (Middle Jurassic) ammonites and stratigraphy of the Geisingen clay pit (SW Germany). Palaeodiversity 7: 61-127
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