-
ancestor of the Troedssonellidae,
being followed in
overlapping sequence by
Buttsoceras. The type,
Tajaroceras wardae, was
found 55–65 ft
above the base of the...
- as
probably did many of the
Orthocerida such as
Michelinoceras and
Buttsoceras, or
these forms without extensive internal ballast may
simply have been...
- Database: Clinoceratidae,
basic info R. H. Flower. 1962. Part 1,
Revision of
Buttsoceras, Part 2,
Notes on the Michelinoceratida.
State Bureau of
Mines and Mineral...
- the
Narthecoceratidae of the
Middle and Late Ordovician.
Tajaroceras Buttsoceras Oxfordoceras Ctenoceras Troedsonnella Genera of
dubious placement: Glenisteroceras...
- of the
Floian Phthanoncoceras Valhalloceras Nautiloids of the
Floian Buttsoceras Centroonoceras Gangshanoceras Geisonoceras Glenisteroceras Michelinoceras...
- Proteoceratidae,
basic info R. H. Flower. 1962. Part 1,
Revision of
Buttsoceras, Part 2,
Notes on the Michelinoceratida.
State Bureau of
Mines and Mineral...
- †Blountia †Blountia
bristolensis †Borestus †
Buttsoceras †
Buttsoceras adamsi †
Buttsoceras odenvillense †
Buttsoceras vandiverense Contents A B C D E F G H I...
- †Brodekoceras †Broeggeroceras †Buchanoceras †Buehleroceras †Burenoceras †
Buttsoceras †Byronoceras †Calchasiceras †Calhounoceras †Callaionautilus †Calocyrtoceras...
- nov In
press Fuchs &
Stinnesbeck Late
Cretaceous (Turonian) Mexico
Buttsoceras buldrebreenense Sp. nov
Valid Kröger &
Pohle Ordovician (Floian) Valhallfonna...
-
bearing forms gave rise to the
Troedsonnellidae with
early members,
Buttsoceras and
Tajaroceras found in the
upper C****inian. The
Baltoceratidae and...
