Klimaszewski S. M., Popov Y. A., 1993: New fossil hemipteran insects from Southern England (Hemiptera: Psyllina + Coleorrhyncha). 19 pp. Annals of the Upper Silesian Museum in Bytom suppl. 1: 13-31.
 
AMM 81419
Kolibáč J., 1997: The taxonomic method and the Permian mass extinction. 5 pp. [MHB 20] [M05]
 
EBA 30135
Kolibáč J., Di-Ying H., 2008: Taxonomic status of the Mesozoic genera Anthuistoma Lin, 1985, Eotenebroides Ren, 1995, Lithostoma Martynov, 1926, Palaeoendomychus Zhang, 1992 (Coleoptera). 14 pp. (in English). [M48] Entomologica Basiliensia et collectionis Frey 30: 135-148.
 
MAM 258
Korth W. W., Emry R. J., 2007: A new genus of paramyine (Ischyromyidae, Rodentia) from the Eocene (Uintan to Chadronian) of Wyoming and Utah. 5 pp. Bull. Carn. Mus. Nat. Hist. 39: 151-155.
 
MAM 259
Korth W. W., Martin J. E., 2007: Additional cranial material of the Miocene beaver Anchitheriomys (Rodentia, Castoridae) from Nebraska. 7 pp. Bull. Carn. Mus. Nat. Hist. 39: 165-171.
 
AZC 3206
Koteja J., 1989: Baisococcus victoriae gen. et sp. n. – a lower cretaceous coccid (Homoptera, Coccinea). 14 pp. [HEM 828] [M23] Acta zoologica cracoviensia 32/6: 93-106.
 
AZC 35597
Krzeminski W., 1993: Fossil Tipulomorpha (Diptera, Nematocera) from Baltic amber (Upper Eocene). Revision of the genus Helius Lepeletier et Serville (Limoniidae). 5 pp. [DIP 1723] [M40] Acta zoologica cracoviensia 597-601.
 
PPE 67303
Krzeminski W., 1998: Cyttaromyia frelloi sp. n., the first representative of the family Cylindrotomidae in Baltic amber (Diptera: Tipulomorpha). 6 pp. (in English). Polskie Pismo Entomologiczne 67(3-4): 303-308.
 
PPE 67309
Krzeminski W., 1998: Hexatoma (Eriocera) serafini sp. n. from Baltic amber (Diptera: Limoniidae). 2 pp. (in English). Polskie Pismo Entomologiczne 67(3-4): 309-310.
 
PPE 67299
Krzeminski W., 1998: Limonia (Limonia) skalskii sp. n. from Baltic amber (Diptera: Limoniidae). 3 pp. (in English). Polskie Pismo Entomologiczne 67(3-4): 299-301.
 
AZC 3322
Krzeminski W., Krzeminska E., 1990: Tipulomorpha of the Middle Eocena deposits from Pesciara di Bolc near Verona 5 pp. [DIP 1725] [M40] Acta zoologica cracoviensia 33/22: 495-499.
 
88090
Kvaček Z., 1991: Notes on the Egerian stratotype flora at Eger (Wind brickyard), Hungary, Upper Oligocene. 34 pp.