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Bogdanova 7 Klass

Discussion: The specimens attributed by Bogdanova (1979, Pl. 2, figs. 3-4) to Deshayesites consobrinus (d'Orbigny,1841) cannot be matched with either the original illustration of d'Orbigny (1841) or the lectotype designated by Casey (1964, p. 352, fig. 124b), which is larger, with coarser ribs, much longer intercalatories and several consecutives primaries. Deshayesites bogdanovae Avram has a much denser ribbing and no consecutive primaries.

bogdanova 7 klass


Discussion: This form differs from Deshayesites consobrinus (sensu stricto) in its high and steep umbilical wall and more numerous ribs. It differs too from the Turkmenian ammonites described by Bogdanova (1979, Pl. 2, figs. 3-4) under the name Deshayesites consobrinus (=Deshayesites bogdanovae Avram,1999) which bear more flexuous and numerous (27/28) ribs per half-whorl (rather than 22/23) and has a more evolute coiling.

Beds 110-128: Paradeshayesites weissi Zone: In this interval we collected: Paradeshayesites weissi (Neumayret Uhlig, 1881), Paradeshayesites callidiscus var. rugosus (Casey,1961), Deshayesites gr. spathi/normani Casey,1964, D. consobrinus (d'Orbigny, 1841), D. gr. spathi/normani,D. forbesi Casey, 1961, D. bogdanovae Avram,1999, D. evolvens Luppov, 1952, D.formosus Casey,1964, D. euglyphus Casey,1964, D. cf. planus, Casey,1964, D. dechyi Papp, 1907, D. cf. dechyi Papp,1907.

Numerous species of Deshayesites, most of them described in the Turkmenian or Trans-Caspian regions, have been formally identified in the continuous succession of the Lower Aptian at Cassis-La Bédoule: Paradeshayesites oglanlensis, Paradeshayesites planicostatus, Paradeshayesitesweissiformis, D. luppovi, D. dechyi, D. bogdanovae, D. rarecostatus, Dufrenoyia sinzovi, D. fursovae. 041b061a72

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