Kyrkkuduk I (Syuk-Syuk) (Cretaceous of Kazakhstan)

Also known as Kyrk-Kuduk, Sary-Agach

Where: Ongtustik Qazaqstan, Kazakhstan (52.5° N, 71.7° E: paleocoordinates 46.9° N, 62.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Syuksyuk Formation, Santonian (86.3 - 83.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Nessov

Primary reference: A. N. Riabinin. 1937. O nakhodke shlemonosnykh form Dinosauria verkhnemelovykh otlozheniyakh yuzhnogo Kazakhstana [The discovery of crested forms of Upper Cretaceous dinosaurs in southern Kazakhstan]. Priroda 1937(9):91 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 58719: authorized by Matthew Carrano, entered by Kaitlin Maguire on 22.02.2006, edited by Matthew Carrano and Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Trionychidae
Trionychidae "indet. 2"4 Gray 1825 softshell turtle
CCMGE 343/1341, partial lateral hyoplastron; CCMGE 425/1341 and 428/1341, partial lateral hypoplastra; CCMGE 432/1341, partial costals 5 and 6 (originally labeled as “Costals of Trionychidae of the Aspideretes foveatus like form”)
Aspideretes jaxarticus n. sp.3 Riabinin 1938 softshell turtle
Trionychinae indet.1 Gray 1825 softshell turtle
Trionyx kansaiensis4 Vitek and Danilov 2010 softshell turtle
CCMGE 441/1341, partial hypoplastron; CCMGE 522/1341, posterior part of a carapace; CCMGE 589/1341, partial costals 7 and 8; CCMGE 590/1341, partial costal 1 (originally labeled as “Costal of a turtle of the Aspideretes ellipticus (?) like form”); CCMGE 598/1341, costal 8; CCMGE 1341 (the only number indicated on the specimen), xiphiplastron (originally labeled as “Chelonia, g. et sp. ind. Part of the plastron (xiphiplastron)”).
"Trionyx" kansaiensis4 Vitek and Danilov 2010 softshell turtle
caudal part of a large trionychid carapace
Trionyx zakhidovi n. sp.3 Khosatzky 1966 softshell turtle
Femur - type; caudal part of a large trionychid carapace also assigned to this species (but later moved to c.f Paraplastomenus by Nessov 1997
? Plastomenus jaxarticus n. sp.2 Riabinin 1938 softshell turtle