Abrytasites

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Abrytasites
Temporal range: Hauterivian–Barremian
Hauterivian- Barremian
Abrytasites neumayri 1889.JPG
Abrytasites neumayri Haug, 1889
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Suborder: Ammonitina
Superfamily: Desmocerataceae
Family: Desmoceratidae
Subfamily: Puzosiinae
Genus: Abrytasites
Nikolov & Breskovski, 1969

Abrytasites (Abrytusites) is an extinct genus of cephalopod belonging to the Ammonoidea subclass.[1] The genus was named after the ancient Roman town of Abrittus, located near the present Bulgarian city of Razgrad. There are several described species of Abrytasites, including A. thieuloyi, A. julianyi, and A. neumayri.[2][3] They are inflated, with constrictions, have rather thick ribs springing irregularly, singly or in pairs, from umbilical bullae. Their inner whorls closely resemble types species of Valdedorsella.[4] This animal lived 125-136.4 million years ago during the Hauterivian and the Barremian in Europe and western Africa.

References[edit]

  1. ^ Nikolov, T. et Breskovski, St.(1969); "Abrytusites - nouveau genre d'ammonite barrémiennes" Bull of the Geological Institute, Ser. Paleontology, Bulgarian Academy of Sciences XVIII (Feb.): 91-6.
  2. ^ Haug, E. (1889); "Beitrag zur Kenntnis der Oberneocomen Ammonitenfauna der Puezalpe bei Corvara (Süd Tirol)" Beiträge zur Paläontologie Osterreich-Ungarns und des Orients VII, 3.
  3. ^ Vašíček, Zdeněk (2002); "Lower Cretaceous Ammonoidea in the Podbranč quarry (Pieniny Klippen Belt, Slovakia)" Bulletin of the Czech Geological Survey, Vol. 77, No. 3, 187–200.
  4. ^ Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised , Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, at 72.

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