Results 61 to 70 of about 383 (157)

THE FIRST CENOZOIC OCTOPOD: A LOWER EOCENE RECORD FROM BOLCA, NORTHEASTERN ITALY

Rivista Italiana di Paleontologia e Stratigrafia
To date, soft-tissue remains of extinct incirrate octopods have been described exclusively from Upper Cretaceous deposits. Here, three specimens of an incirrate octopodid with well-preserved soft tissue imprints are described for the first time from ...
ALEKSANDR MIRONENKO , LUCA GIUSBERTI, GIOVANNI SERAFINI, ROBERTO ZORZIN , ALEXANDRE F. BANNIKOV   +4 more
doaj   +1 more source

First fossil records of cephalopod statoliths

, 1975
THE class Cephalopoda is represented by over 10,000 fossil species and about 1,000 living species. Almost the entire fossil record so far described consists of external or internal calcareous shells of the Ammonoidea, the Nautiloidea and some members of ...
M. R. CLARKE, FITCH, JOHN E., JOHN E. FITCH, CLARKE, M. R.   +3 more
core   +1 more source

An Eocene orthocone from Antarctica shows convergent evolution of internally shelled cephalopods [PDF]

, 2019
Background The Subclass Coleoidea (Class Cephalopoda) accommodates the diverse present-day internally shelled cephalopod mollusks (Spirula, Sepia and octopuses, squids, Vampyroteuthis) and also extinct internally shelled cephalopods.
Doguzhaeva, Larisa A., Mörs, Thomas, Bengtson, Stefan, Reguero, Marcelo Alfredo   +3 more
core  

Coleoidea

, 2012
Coleoidea - 20 X 30- etching on spraypainted glass panelhttps://trace.tennessee.edu/utk_libsarts12/1001/thumbnail ...
Goller-Brown, Sterling
core  

The phylogeny of coleoid cephalopods inferred from molecular evolutionary analyses of the cytochrome c oxidase I, muscle actin, and cytoplasmic actin genes

, 1998
Although the fossil record of early cephalopods is rich and demonstrates the dominance of the group in Paleozoic times, the mainly soft-bodied coleoids (Cephalopoda: Coleoidea) are poorly represented.
Carlini, David Bruno
core   +1 more source

Research progress in fecundity study of Coleoidea (Cephalopoda) [PDF]

Marine Fisheries, 2021
Dongming LIN, Sipeng XUAN, Xinjun CHEN
openaire   +1 more source

Die Tintenfische (Cephalopoda) des Obersee-Museums Bremen [PDF]

, 1999
The author revised the Cephalopoda (Nautiloidea, Coleoidea except Vampyromorpha) of the Obersee-Museum Bremen, Germany. 201 specimen especially from the Inda-Pacific including Red-Sae and Mediterranean Sea are analyzed in 31 genera of 13 families ...
Warneke-Cremer, Cornelia
core  

Protoconch morphology of Conoteuthis (Diplobelida, Coleoidea) and its implications on the presumed origin of the Sepiida

Cretaceous Research, 2012
Abstract The phylogenetic origin of the Sepiida is still unclear. The presumed derivation from diplobelid belemnoids can be tested by comparison of their initial chambers (protoconchs). The first investigation of a juvenile phragmocone of the diplobelid Conoteuthis hayakawai from the Cenomanian of Hokkaido (northern Japan) yielded surprising ...
Fuchs, Dirk, Keupp, Helmut, Wiese, Frank
openaire   +2 more sources

Systematics and phylogeny of the Coleoidea (Cephalopoda): a comment upon recent works and their bearing on the classification of the Aulacocerida.

, 1996
Recent attempts to classify the Coleoidea and interpret their evolution are critically reviewed, pointing out some controversial aspects in nomenclature, systematics and phylogeny.
PIGNATTI, Johannes, MARIOTTI, Nino
core  

First record of Duvalia ex. gr. lata (Cephalopoda, Coleoidea) from Mexico

Boletín de la Sociedad Geológica Mexicana, 2013
Here we present the first record of the belemnite Duvalia ex. gr. lata (Cephalopoda, Coleoidea) from Mexico.
Patrick Zell, Seija Beckmann, Wolfgang Stinnesbeck, José Flores Ventura   +3 more
openaire   +1 more source