''Asklepioceras'' is a genus in the
Ceratitid
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammoni ...
family Arpaditidae from the
Middle and
Upper Triassic (
Ladinian
The Ladinian is a stage and age in the Middle Triassic series or epoch. It spans the time between Ma and ~237 Ma (million years ago). The Ladinian was preceded by the Anisian and succeeded by the Carnian (part of the Upper or Late Triassic).
...
and
Carnian stages) of
Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
,
Romania
Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
,
Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, and
British Columbia
British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
(
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
).
History
The type species, ''Asklepioceras segmentatum'' was originally named as ''Arpadites segmentatus'' by Renz, 1910. In 1951, it was assigned to ''Asklepioceras'' by L. F. Spath.
[L. F. Spath. 1951. Catalogue of the Fossil Cephalopoda in the British Museum (Natural History), Part V, The Ammonoidea of the Trias (II) 1-228] Founded in British Columbia in 1947, ''A. mahaffii'' was later synonymised with ''A. laurenci''. Two more species, ''A. exilis'' and ''A. altilis'', both from Canada, were described in 1994 by E. T. Tozer.
[E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663. ISBN 0-660-15368-8]
Description
The genus is characterized by evolute to involute, discoidal to subglobular shells with a median (ventral) furrow not bordered by keels (in contrast to Dittmarites in which it is) and simple ceratitic sutures. (Arkell et al. 1962, L162) The genotype ''Asklepioceras segmentatus'' Renz, 1910, based on ''Arpadites (Dittmarites) segmentatus'' Mojsisovics, 1893. is found in the Carnian of the Alps.
References
Further reading
* Arkel et al., 1962. Mesozoic Ammonoidea,
Treatise on Invertebrate Paleontology
The ''Treatise on Invertebrate Paleontology'' (or ''TIP'') published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and co ...
Part L, Mollusca 4, R.C. Moore (ed)
* E. T. Tozer. 1981. Triassic Ammonoidea: Classification, evolution and relationship with Permian and Jurassic Forms. The Ammonoidea: The evolution classification, mode of life and geological usefulness of a major fossil group 66-100
* J. J., J.r. Sepkoski. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560
{{Taxonbar, from=Q4807226
Trachyceratidae
Ceratitida genera
Middle Triassic ammonites
Ammonites of Europe
Ladinian first appearances
Carnian extinctions
Late Triassic ammonites