By Christian Klug, Dieter Korn, Kenneth De Baets, Isabelle Kruta, Royal H. Mapes
This two-volume paintings is a testomony to the abiding curiosity and human fascination with ammonites. we provide a brand new version to give an explanation for the morphogenesis of septa and the shell, we discover their habitats by way of the content material of sturdy isotopes of their shells, we talk about the beginning and later evolution of this significant clade, and we convey hypotheses on its loss of life. The Ammonoidea produced quite a few species that may be utilized in biostratigraphy and probably, this is often the macrofossil crew, which has been used the main for that goal. however, many elements in their anatomy, mode of existence, improvement or paleobiogeographic distribution are nonetheless poorly recognized.
Themes taken care of are biostratigraphy, paleoecology, paleoenvironment, paleobiogeography, evolution, phylogeny, and ontogeny. Advances resembling an explosion of recent information regarding ammonites, new applied sciences similar to isotopic research, tomography and digital paleontology commonly, in addition to non-stop discovery of latest fossil reveals have given us the chance to offer a complete and well timed "state of the artwork" compilation. additionally, it additionally issues the best way for destiny reviews to additional improve our realizing of this forever attention-grabbing staff of organisms.
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Extra info for Ammonoid Paleobiology: From macroevolution to paleogeography
5. Initial decrease in the strength of ornamentation (De Baets et al. 2013b). Increase in sutural complexity (Wiedmann and Kullmann 1980; García-Ruíz et al. 1990; Boyajian and Lutz 1992; Saunders and Work 1996; Daniel et al. 1997; Saunders et al. 1999; Gildner 2003; Ubukata et al. 2014). These evolutionary changes have been discussed to differing degrees by various authors (Erben 1964a, 1965, 1966; Bogoslovsky 1969; Kutscher 1969; House 1988; Kröger 2005; Korn 2001; Korn and Klug 2002, 2003, 2012; De Baets et al.
13). b Otoceras concavum (Griesbachian; after Dagys and Ermakova 1996, pl. 5). c Gymnites sp. indet. , Gould 1991; Foote 1993; Roy and Foote 1997). Morphological disparity is a quantitative estimate of the empirical distribution of taxa in a multidimensional space (morphospace), the axes of which represent measures of morphology (Roy and Foote 1997). Morphological disparity is not necessarily linked to taxonomic diversity, and is even a valuable complement in characterizing evolutionary patterns (Foote 1993; McGowan 2004; Villier and Korn 2004).
Palaeontogr A 283:1–94 Klug C, Meyer E, Richter U, Korn D (2008b) Soft-tissue imprints in fossil and recent cephalopod septa and septum formation. Lethaia 41:477–492 Klug C, Kröger B, Kiessling W, Mullins GL, Servais T, Frýda J, Korn D, Turner S (2010) The Devonian nekton revolution. Lethaia 43:465–477 Klug C, Riegraf W, Lehmann J (2012) Soft-part preservation in heteromorph ammonites from the Cenomanian-Turonian Boundary Event (OAE 2) in the Teutoburger Wald (Germany). Palaeontology 55:1307–1331 Korn D (2001) Morphometric evolution and phylogeny of Palaeozoic ammonoids.