Kazakhstania kana, Korn & Weyer, 2023

Korn, Dieter & Weyer, Dieter, 2023, The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany), European Journal of Taxonomy 882, pp. 1-230 : 149

Kazakhstania kana sp. nov.

urn:lsid:zoobank.org:act:A5012412-0C69-480F-AA08-75059935B6D3

Tables 85–86

Gattendorfia evoluta – Bockwinkel & Ebbighausen 2006: 112, text-figs 29, 30e –h.

Diagnosis

Species of Kazakhstania with a conch reaching 20 mm diameter. Conch at 10 mm dm thinly discoidal, extremely evolute (ww/dm ~0.40; uw/dm ~0.65). Whorl profile at 10 mm dm strongly depressed (ww/ wh ~2.25); coiling rate very low (WER ~1.48). Venter flattened. Without constrictions on the shell surface. Suture line with very narrowly lanceolate external lobe.

Material examined

Holotype

MOROCCO • Anti-Atlas, Mfis near Taouz, bed 7; Bockwinkel & Ebbighausen Coll.; illustrated by Bockwinkel & Ebbighausen (2006: text-fig. 30e–f); MB.C.3820.1.

Paratypes

MOROCCO • 7 specimens; Anti-Atlas , Mfis near Taouz , bed 7; Bockwinkel & Ebbighausen Coll.; MB.C.3820.2–MB.C.3820.8 .

Etymology

An acronym for a Kazakhstania species from North Africa.

Description

The species newly described here has been worked on in detail by Bockwinkel & Ebbighausen (2006), so reference can be made here to that description.

Remarks

Kazakhstania kana sp. nov. resembles K. evoluta , but differs in the broader, pouched external lobe, which is lanceolate and very narrow in K. evoluta . The other species of the genus have constrictions and are thus separated from K. kana .