Some ammonite genera from the Tithonian of western Cuba and their palaeobiogeographic importance

• Autorzy: Myczyński R.
• Języki publikacji: EN

Abstrakty

EN

Ammonites of the genus Hybonoticeras Breistroffer, 1947, described here as: Hybonoticeras (Hybonoticeras) sp. ex. gr. beckeri (Neumayr) and Hybonoticeras (Hybonotella) cf. mundulum striatulum Berckhemer & Hölder, derive from Lower Tithonian deposits of the Sierra de los Organos and Sierra del Rosario belts (Guaniguanico terrane, western Cuba). The presence of the genus Hybonoticeras Breistroffer, 1947, in Cuba, confirms the palaeobiogeographical connections between Spain, Cuba and Mexico during Early Tithonian time, as proposed earlier by the present author. A direct marine connection between Mediterranean Tethys and the proto-Caribbean basin at that time had probably occurred through the “hispanic corridor” sensu Westermann (1984). The taxonomic position of the endemic Cuban genera (Salinites, Protancyloceras - hondense type, Vinalesites, Butticeras, and Paralytohoplites) is specified. These ammonites can be used only for regional correlation, limited to the Gulf of Mexico (Eastern Mexico and Southern part of the United States) and the Caribbean (Cuba). The new data caused modification of local ammonite biozonation.

Słowa kluczowe

EN

Cuba; ammonites; palaeobiogeography

• Wydawca: Instytut Nauk Geologicznych PAN
• Czasopismo: Studia Geologica Polonica
• Rocznik: 1999
• Tom: Vol. 114
• Strony: 93--112

Twórcy

autor

Myczyński R.

• Institute of Geological Sciences, Polish Academy of Sciences, ul. Twarda 51/55, 00-818 Warszawa, Poland,