@article{UBHD-67953977,
  author={Ahmad, Fayez and Ifrim, Christina and Farouk, Sherif},
  title={The last ammonoids of Jordan},
  subtitle={implications from the Outhriate section},
  year={2015},
  pages={245-256},
  language={eng},
  issn={2363-717X},
  volume={278},
  number={3},
  note={Gesehen am 10.03.2016},
  journal={Neues Jahrbuch f{\"u}r Geologie und Pal{\"a}ontologie},
  doi={10.1127/njgpa/2015/0524},
}
@article{UBHD-68807073,
  author={Austermann, Gregor and Kling, Melanie and Ifrim, Christina and Emondt, Pascale D. and Hildenbrand, Anne},
  title={Quantifying the diagenetic impact in the late Ediacaran and early Palaeozoic of the Avalon Peninsula using illite “crystallinity”},
  year={2021},
  pages={1187-1208},
  language={eng},
  issn={1480-3313},
  volume={58},
  number={11},
  note={Gesehen am 01.12.2021},
  journal={Canadian journal of earth sciences},
  doi={10.1139/cjes-2020-0207},
}
@article{UBHD-68497919,
  author={Baudouin, Cyril and Delanoy, Gérard and Ifrim, Christina and Moreno-Bedmar, Josep Anton},
  title={The ammonoid fauna of the Prionocyclus germari Zone (upper Turonian, upper Cretaceous) from Rochefort-en-Valdaine (Drôme, France)},
  year={2018},
  pages={313-351},
  language={eng},
  issn={1634-0744},
  volume={18},
  number={14},
  note={Gesehen am 05.03.2020},
  journal={Carnets de géologie},
}
@article{UBHD-68242654,
  author={Benyoucef, Madani and Ifrim, Christina},
  title={Litho- and biostratigraphy, facies patterns and depositional sequences of the Cenomanian-Turonian deposits in the Ksour Mountains (Saharan Atlas, Algeria)},
  year={2017},
  pages={34-55},
  language={eng},
  issn={0195-6671},
  volume={78},
  note={Gesehen am 13.04.2018 ; DOI funktioniert nicht},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2017.05.013},
}
@article{UBHD-67814982,
  author={Buchy, Marie-Céline and Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={Annotated catalogue of marine squamates (Reptilia) from the Upper Cretaceous of northeastern Mexico},
  year={2005},
  pages={195-205},
  language={eng},
  issn={0016-7746 and 0923-1102 and 0923-1129 and 0923-1110},
  volume={84},
  journal={Geologie en mijnbouw},
}
@article{UBHD-68869090,
  author={Frau, Camille and Wimbledon, William A.P. and Ifrim, Christina and Bulot, Luc G. and Pohl, Alexandre},
  title={Berriasian ammonites of supposed Tethyan origin from the type ‘Ryazanian’, Russia},
  subtitle={a systematic re-interpretation},
  year={2021},
  pages={515-537},
  language={eng},
  issn={1871-174X},
  volume={30},
  number={3},
  note={Gesehen am 20.01.2022},
  journal={Palaeoworld},
  doi={10.1016/j.palwor.2020.07.004},
}
@article{UBHD-68580315,
  author={Frau, Camille and Bulot, Luc G. and Reháková, Daniela and Wimbledon, William A. P. and Ifrim, Christina},
  title={Revision of the ammonite index species Berriasella jacobi Mazenot, 1939 and its consequences for the biostratigraphy of the Berriasian Stage},
  year={2016},
  pages={94-114},
  language={eng},
  issn={0195-6671},
  volume={66},
  note={Gesehen am 25.05.2020},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2016.05.007},
}
@article{UBHD-68580327,
  author={Frau, Camille and Bulot, Luc G. and Wimbledon, William A. P. and Ifrim, Christina},
  title={Systematic palaeontology of the Perisphinctoidea in the Jurassic/Cretaceous boundary interval at Le Chouet (Drôme, France), and its implications for biostratigraphy},
  year={2016},
  pages={175-204},
  language={eng},
  issn={2300-1887},
  volume={66},
  number={2},
  note={Gesehen am 25.05.2020 ; DOI funktioniert nicht},
  journal={Acta geologica Polonica},
  doi={10.1515/agp-2016-0008},
}
@article{UBHD-68580320,
  author={Frau, Camille and Bulot, Luc G. and Wimbledon, William A. P. and Ifrim, Christina},
  title={Upper Tithonian ammonites (Himalayitidae Spath, 1925 and Neocomitidae Salfeld, 1921) from Charens (Drôme, France)},
  year={2016},
  pages={543-559},
  language={eng},
  issn={1336-8052},
  volume={67},
  number={6},
  note={Gesehen am 25.05.2020},
  journal={Geologica Carpathica},
  doi={10.1515/geoca-2016-0034},
}
@article{UBHD-67749376,
  author={Frey, Eberhard and Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={A new specimen of nyctosaurid pterosaur, cf. Muzquizopteryx sp. from the Late Cretaceous of northeast Mexico},
  year={2012},
  pages={131-139},
  language={eng},
  issn={1026-8774},
  volume={29},
  number={1},
  note={Gesehen am 17.12.2014},
  journal={Revista mexicana de ciencias geológicas},
}
@article{UBHD-67749367,
  author={Fuchs, Dirk and Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Longibelus gen. nov., a new Cretaceous coleoid genus linking Belemnoidea and early Decabrachia},
  year={2013},
  pages={1081-1106},
  language={eng},
  issn={1475-4983},
  volume={56},
  number={5},
  note={Gesehen am 17.12.2014},
  journal={Palaeontology},
  doi={10.1111/pala.12036},
}
@article{UBHD-67812333,
  author={Fuchs, Dirk and Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={A new Palaeoctopus (Cephalopda: Coleoidea) from the Late Cretaceous of Vallecille, North-eastern Mexico and its implications on the evolution of Octopoda},
  year={2008},
  pages={1129-1139},
  language={eng},
  issn={1475-4983},
  volume={51},
  number={5},
  note={Gesehen am 04.05.2015},
  journal={Palaeontology},
  doi={10.1111/j.1475-4983.2008.00797.x},
}
@article{UBHD-67811613,
  author={Fuchs, Dirk and Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={Glyphiteuthis rhinophora n. sp., a trachyteuthidid (Coleoidea, Cephalopoda) from the Cenomanian (Late Cretaceous) of Mexico},
  year={2010},
  pages={523-532},
  language={eng},
  issn={1867-6812},
  volume={84},
  number={4},
  note={Gesehen am 30.04.2015},
  journal={Pal{\"a}ontologische Zeitschrift},
  doi={10.1007/s12542-010-0066-9},
}
@article{UBHD-67749386,
  author={Giersch, Samuel and Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={Scombroclupea occidentalis sp. nov. (Clupeiformes, Teleostei) from the Cenomanian (Cretaceous) Plattenkalk deposits of NE Mexico},
  year={2011},
  pages={73-84},
  language={eng},
  issn={1661-8734},
  volume={104},
  number={Suppl. 1},
  note={Gesehen am 17.12.2014},
  journal={Swiss journal of geosciences},
  doi={10.1007/s00015-011-0079-8},
}
@article{UBHD-68767576,
  author={Hildenbrand, Anne and Austermann, Gregor and Ifrim, Christina and Bengtson, Peter},
  title={Biostratigraphy and taxonomy of Drumian ( Middle Cambrian) agnostid trilobites of the Manuels river formation, Avalonian Newfoundland, Canada},
  year={2021},
  pages={1657-1698},
  language={eng},
  issn={2056-2802},
  volume={7},
  number={3},
  note={Gesehen am 06.08.2021},
  journal={Papers in palaeontology},
  doi={10.1002/spp2.1358},
  url={https://doi.org/10.1002/spp2.1358},
  library={UB},
}
@conference{UBHD-67811610,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Das 23. Lateinamerika-Kolloquium},
  subtitle={Heidelberg, 25. - 27. M{\"a}rz 2014; (Ank{\"u}ndigungen)},
  year={2013},
  pages={114-115},
  language={ger},
  issn={1616-3931},
  note={Gesehen am 30.04.2015},
}
@article{UBHD-68833462,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Ammonoids and their biozonation across the Santonian-Campanian boundary in north-eastern Coahuila, Mexico},
  year={2021},
  pages={1-62},
  language={eng},
  issn={1094-8074},
  volume={24},
  note={Gesehen am 28.04.2022},
  journal={Palaeontologia electronica},
  doi={10.26879/1046},
}
@article{UBHD-67814947,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Ammonoids from the Maastrichtian (Late Cretaceous) at El Zancudo, Nuevo Laredo, Tamaulipas, Mexico},
  year={2013},
  pages={189-200},
  language={eng},
  volume={65},
  number={1},
  note={Gesehen am 07.05.2015},
  journal={Boletín de la Sociedad Geológica Mexicana},
}
@article{UBHD-68443566,
  author={Ifrim, Christina and Porras Múzquiz, Héctor and Stinnesbeck, Wolfgang},
  title={Ammonoids, their biozonation and their palaeobiogeographic relation across the Turonian-Coniacian boundary in northern Coahuila, Mexico},
  year={2019},
  pages={170-195},
  language={eng},
  issn={0195-6671},
  volume={102},
  note={Gesehen am 22.10.2019},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2019.03.014},
}
@article{UBHD-67811636,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Cenomanian-Turonian high-resolution biostratigraphy of north-eastern Mexico and its correlation with the GSSP and Europe},
  year={2008},
  pages={943-956},
  language={eng},
  issn={0195-6671},
  volume={29},
  number={5/6},
  note={Gesehen am 30.04.2015},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2008.05.014},
}
@conference{UBHD-67852658,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Cephalopoden aus der Méndez-Formation (Maastrichtium) von Cerralvo, Nuevo Léon, Nord-Ost-Mexiko},
  year={2003},
  pages={43},
  language={ger},
}
@book{UBHD-69205067,
  author={Ifrim, Christina and Kirchhoff, Thomas and Hupke, Klaus-Dieter and Kahl, Wolfgang and Siegmund, Alexander and Bubenzer, Olaf and Wink, Michael},
  title={Diversit{\"a}t},
  publisher={Universit{\"a}tsbibliothek},
  address={Heidelberg},
  year={2024},
  pages={1 Online-Ressource [48 Seiten]},
  language={ger},
  note={In: Umwelt interdisziplin{\"a}r, Bd. 1. Heidelberg, Universit{\"a}tsbibliothek 2024},
  doi={10.11588/heidok.00032133},
  url={http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-321331},
  library={UB},
}
@article{UBHD-67812342,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Early Turonian ammonites from Vallecillo, north-eastern Mexico},
  subtitle={taxonomy, biostratigraphy and palaeobiogeographical significance},
  year={2007},
  pages={642-664},
  language={eng},
  issn={0195-6671},
  volume={28},
  number={4},
  note={Gesehen am 04.05.2015},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2006.10.004},
}
@article{UBHD-67749370,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang and Ventura, José Flores},
  title={An endemic cephalopod assemblage from the Lower Campanian (Late Cretaceous) Parras Shale, Western Coahuila, Mexico},
  year={2013},
  pages={881-901},
  language={eng},
  issn={1937-2337},
  volume={87},
  number={5},
  note={Gesehen am 17.12.2014},
  journal={Journal of paleontology},
  doi={10.1666/12-123},
}
@article{UBHD-67749387,
  author={Ifrim, Christina and Vega, Francisco J. and Stinnesbeck, Wolfgang},
  title={Epizoic stramentid cirripedes on ammonites from late Cretaceous Platy Limestones in Mexico},
  year={2011},
  pages={524-536},
  language={eng},
  issn={1937-2337},
  volume={85},
  number={3},
  note={Gesehen am 17.12.2014},
  journal={Journal of paleontology},
  doi={10.1666/10-052.1},
}
@book{UBHD-68934374,
  author={Ifrim, Christina and Haidle, Miriam N. and Schlaudt, Oliver and Wink, Michael},
  title={Evolution},
  publisher={Universit{\"a}tsbibliothek},
  address={Heidelberg},
  year={2022},
  pages={1 Online-Ressource (43 Seiten)},
  language={ger},
  note={Aus: Umwelt interdisziplin{\"a}r, Bd. 1. Universit{\"a}tsbibliothek, Heidelberg 2022},
  doi={10.11588/heidok.00031285},
  url={https://nbn-resolving.org/urn:nbn:de:bsz:16-heidok-312855},
  library={UB},
}
@article{UBHD-67749388,
  author={Ifrim, Christina and G{\"o}tz, Stefan and Stinnesbeck, Wolfgang},
  title={Fluctuations of the oxygen minimum zone at the end of OAE 2 reflected by benthic and planktic fossils},
  year={2011},
  pages={1043-1046},
  language={eng},
  issn={1943-2682},
  volume={39},
  number={11},
  note={Gesehen am 17.12.2014},
  journal={Geology},
  doi={10.1130/G32161.1},
}
@article{UBHD-67953964,
  author={Ifrim, Christina},
  title={Fluctuations of the oxygen minimum zone at the end of Oceanic Anoxic Event 2 in the Gulf of Mexico and the response of ammonites},
  year={2015},
  pages={217-225},
  language={eng},
  issn={1664-2384},
  volume={134},
  number={2},
  note={Gesehen am 10.03.2016},
  journal={Swiss journal of palaeontology},
  doi={10.1007/s13358-015-0089-7},
}
@book{UBHD-67810962,
  author={Ifrim, Christina},
  title={The fossil Lagerst{\"a}tte at Vallecillo, North-Eastern Mexico},
  subtitle={pelagic Plattenkalks related to cenomanian-turonian boundary anoxia},
  year={2006},
  pages={IX, 151 Bl.},
  language={eng},
  school={Karlsruhe, Univ., Diss., 2006},
}
@article{UBHD-68429598,
  author={Ifrim, Christina and Bengtson, Peter and Schweigert, G{\"u}nter},
  title={Growth and function of spines in Jurassic and Cretaceous ammonites},
  year={2018},
  pages={62-78},
  language={eng},
  issn={0195-6671},
  volume={88},
  note={Available online: 8 May 2017 ; Gesehen am 12.09.2019},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2017.05.003},
}
@article{UBHD-67810973,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Hemipelagic cephalopods from the Maastrichtian (late Cretaceous) Parras Basin at La Parra, Coahuila, Mexico, and their implications for the correlation of the lower Difunta Group},
  year={2010},
  pages={597-618},
  language={eng},
  issn={0895-9811},
  volume={29},
  number={3},
  note={Gesehen am 29.04.2015},
  journal={Journal of South American earth sciences},
  doi={10.1016/j.jsames.2009.08.005},
}
@article{UBHD-67749364,
  author={Ifrim, Christina and Wiese, Frank and Stinnesbeck, Wolfgang},
  title={Inoceramids and biozonation across the Turonian-Coniacian boundary (Upper Cretaceous) at El Rosario, Coahuila, northeastern Mexico},
  year={2014},
  pages={211-246},
  language={eng},
  issn={0078-0421},
  volume={47},
  number={2},
  journal={Newsletters on stratigraphy},
}
@article{UBHD-67749365,
  author={Ifrim, Christina and Wiese, Frank and Stinnesbeck, Wolfgang},
  title={Inoceramids and biozonation across the Turonian-Coniacian boundary (Upper Cretaceous) at El Rosario, Coahuila, northeastern Mexico},
  year={2014},
  pages={211-246},
  language={eng},
  issn={2363-6122},
  volume={47},
  number={2},
  note={Gesehen am 15.12.2014},
  journal={Newsletters on stratigraphy},
  doi={10.1127/0078-0421/2014/0043},
}
@conference{UBHD-67811606,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Internationales Symposium f{\"u}r Lithographische Kalke und Plattenkalk},
  subtitle={Saltillo, Mexico, 17. - 19. September 2014 ; (Ank{\"u}ndigungen)},
  year={2014},
  pages={84},
  language={ger},
  issn={1616-3931},
  note={Gesehen am 30.04.2015},
}
@article{UBHD-68314293,
  author={Ifrim, Christina},
  title={Larval shell morphology of Inoceramus pictus},
  subtitle={all suspicions confirmed},
  year={2017},
  pages={327-336},
  language={eng},
  issn={1867-6812},
  volume={91},
  number={3},
  note={Gesehen am 11.10.2018},
  journal={Pal{\"a}ontologische Zeitschrift},
  doi={10.1007/s12542-017-0357-5},
}
@article{UBHD-67830846,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang and López-Oliva, José Guadalupe},
  title={Maastrichtian cephalopods from Cerralvo, north-eastern Mexico},
  year={2004},
  pages={1575-1627},
  language={eng},
  issn={1475-4983},
  volume={47},
  number={5},
  note={Gesehen am 15.06.2015},
  journal={Palaeontology},
  doi={10.1111/j.0031-0239.2004.00426.x},
}
@article{UBHD-67812349,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang and Schafhauser, Armin},
  title={Maastrichtian shallow-water ammonites of northeastern Mexico},
  year={2005},
  pages={48-64},
  language={eng},
  issn={1026-8774},
  volume={22},
  number={1},
  note={Gesehen am 04.05.2015},
  journal={Revista mexicana de ciencias geológicas},
}
@article{UBHD-67811611,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Migration pathways of the late Campanian and Maastrichtian shallow facies ammonite Sphenodiscus in North America},
  year={2010},
  pages={96-102},
  language={eng},
  issn={0031-0182},
  volume={292},
  number={1/2},
  note={Gesehen am 30.04.2015},
  journal={Palaeogeography, palaeoclimatology, palaeoecology},
  doi={10.1016/j.palaeo.2010.03.030},
}
@article{UBHD-68429591,
  author={Ifrim, Christina},
  title={A note on species identification in the genus Libycoceras Hyatt, 1900 (Ammonitina, Late Cretaceous)},
  year={2018},
  pages={395-401},
  language={eng},
  issn={0195-6671},
  volume={87},
  note={Available online: 29 April 2017 ; Gesehen am 12.09.2019},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2017.04.019},
}
@article{UBHD-68800850,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang and González González, Arturo H. and Schorndorf, Nils and Gale, Andrew S.},
  title={Ontogeny, evolution and palaeogeographic distribution of the world’s largest ammonite Parapuzosia (P.) seppenradensis (Landois, 1895)},
  year={2021},
  pages={1-17},
  language={eng},
  issn={1932-6203},
  volume={16},
  note={Gesehen am 12.11.2021},
  journal={PLOS ONE},
  doi={10.1371/journal.pone.0258510},
}
@incollection{UBHD-68335955,
  author={Ifrim, Christina and Lehmann, Jens and Ward, Peter M.},
  title={Paleobiogeography of late Cretaceous ammonoids},
  year={2015},
  pages={259-274},
  language={eng},
  isbn={978-94-017-9630-9},
  note={Gesehen am 04.12.2018},
  booktitle={Ammonoid paleobiology: from anatomy to ecology},
  editor={Klug, Christian and Korn, Dieter and De Baets, Kenneth and Kruta, Isabelle and Mapes, Royal H.},
  doi={10.1007/978-94-017-9633-0_10},
}
@article{UBHD-67749368,
  author={Ifrim, Christina},
  title={Paleobiology and paleoecology of the early Turonian (Late Cretaceous) ammonite Pseudaspidoceras flexuosum},
  year={2013},
  pages={9-22},
  language={eng},
  issn={1938-5323},
  volume={28},
  number={1},
  note={Gesehen am 15.12.2014},
  journal={Palaios},
  doi={10.2110/palo.2012.p12-005r},
}
@article{UBHD-68335954,
  author={Ifrim, Christina},
  title={Proceedings of the 23rd Latin American Colloquium in Earth Science, Heidelberg 2014},
  subtitle={editorial},
  year={2015},
  pages={175-176},
  language={eng},
  issn={2363-717X},
  volume={277},
  number={2},
  note={Gesehen am 04.12.2018},
  journal={Neues Jahrbuch f{\"u}r Geologie und Pal{\"a}ontologie},
  doi={10.1127/njgpa/2015/0497},
}
@article{UBHD-68480797,
  author={Ifrim, Christina},
  title={Schlueterella stinnesbecki n. sp. (Ammonoidea, Diplomoceratidae)from the Turonian-Coniacian of northeastern Mexico},
  year={2019},
  pages={841-849},
  language={eng},
  volume={71},
  number={3},
  note={Gesehen am 27.01.2020},
  journal={Boletín de la Sociedad Geológica Mexicana},
  doi={10.18268/BSGM2019v71n3a13},
}
@article{UBHD-68429634,
  author={Ifrim, Christina and Wendler, Ines and Lehmann, Jens},
  title={Taphonomy of ammonoid nuclei from the Turonian-Coniacian (Upper Cretaceous) of a Tanzania drilling project core},
  subtitle={implications for ammonoid dispersal},
  year={2018},
  pages={185-193},
  language={eng},
  issn={0195-6671},
  volume={87},
  note={Gesehen am 12.09.2019},
  journal={Cretaceous research},
  doi={10.1016/j.cretres.2017.08.014},
}
@article{UBHD-68136702,
  author={Ifrim, Christina and Cerda, Jacobo Edgar Lara de la and Stinnesbeck, Wolfgang},
  title={The Upper Campanian - lower Maastrichtian cephalopod fauna of Botellos, Nuevo León},
  subtitle={a key to understand faunal turnover across the Campanian-Maastrichtian boundary in NE Mexico},
  year={2017},
  pages={145-162},
  language={eng},
  issn={2300-1887},
  volume={67},
  number={1},
  note={Gesehen am 11.07.2017},
  journal={Acta geologica Polonica},
  doi={10.1515/agp-2017-0009},
}
@conference{UBHD-67814957,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={The Turonian Platy Limestone at Vallecillo, Nuevo Léon, México, and its fishes},
  year={2010},
  pages={119-134},
  language={eng},
  isbn={978-607-482-119-2},
  note={Gesehen am 07.05.2015},
}
@article{UBHD-67953355,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Upper Campanian (Upper Cretaceous) cephalopods from the Parras Shale near Saucedas, Coahuila, Mexico},
  year={2015},
  pages={229-257},
  language={eng},
  issn={0895-9811},
  volume={64},
  number={1},
  note={Gesehen am 09.03.2016},
  journal={Journal of South American earth sciences},
  doi={10.1016/j.jsames.2015.07.013},
}
@article{UBHD-67812344,
  author={Ifrim, Christina and Stinnesbeck, Wolfgang and Frey, Eberhard},
  title={Upper Cretaceous (Cenomanian-Turonian and Turonian-Coniacian) open marine plattenkalk deposits in NE Mexico},
  year={2007},
  pages={71-81},
  language={eng},
  issn={2363-717X},
  volume={245},
  number={1},
  note={Gesehen am 04.05.2015},
  journal={Neues Jahrbuch f{\"u}r Geologie und Pal{\"a}ontologie},
  doi={10.1127/0077-7749/2007/0245-0071},
}
@incollection{UBHD-68335956,
  author={Lehmann, Jens and Ifrim, Christina},
  title={Paleobiogeography of early cretaceous ammonoids},
  year={2015},
  pages={229-257},
  language={eng},
  isbn={978-94-017-9630-9},
  note={Gesehen am 04.12.2018},
  booktitle={Ammonoid paleobiology: from anatomy to ecology},
  editor={Klug, Christian and Korn, Dieter and De Baets, Kenneth and Kruta, Isabelle and Mapes, Royal H.},
  doi={10.1007/978-94-017-9633-0_9},
}
@article{UBHD-67812335,
  author={Nyborg, Torrey and Ifrim, Christina},
  title={Late Cretaceous fish cans},
  subtitle={fish preserved in ammonite body chambers from the middle Santonian of Coahuila State, northeastern Mexico},
  year={2014},
  pages={75-88},
  language={eng},
  issn={2363-717X},
  volume={273},
  number={1},
  journal={Neues Jahrbuch f{\"u}r Geologie und Pal{\"a}ontologie},
  doi={10.1127/0077-7749/2014/0417},
}
@article{UBHD-67811632,
  author={Schultze, Hans-Peter and Ifrim, Christina and Stinnesbeck, Wolfgang},
  title={Palaeoctopus pelagicus from the Turonian of Mexico reinterpreted as a coelacanth (Sarcopterygian) gular plate},
  year={2010},
  pages={689-694},
  language={eng},
  issn={1475-4983},
  volume={53},
  number={3},
  note={Gesehen am 30.04.2015},
  journal={Palaeontology},
  doi={10.1111/j.1475-4983.2010.00943.x},
}
@article{UBHD-67812345,
  author={Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={Comment on “The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo León, northeastern Mexico” by Blanco-Piñón et al.},
  subtitle={Rev. Mex. Cienc. Geol. (2007), 24, 25-30},
  year={2007},
  pages={365-366},
  language={eng},
  issn={1026-8774},
  volume={25},
  number={2},
  note={Gesehen am 04.05.2015},
  journal={Revista mexicana de ciencias geológicas},
}
@article{UBHD-67749385,
  author={Stinnesbeck, Wolfgang and Ifrim, Christina and Salazar Soto, Christian},
  title={The last Cretaceous ammonites in Latin America},
  year={2012},
  pages={717-728},
  language={eng},
  issn={2300-1887},
  volume={57},
  number={4},
  note={Gesehen am 17.12.2014},
  journal={Acta geologica Polonica},
  doi={10.4202/app.2011.0042},
}
@article{UBHD-67814987,
  author={Stinnesbeck, Wolfgang and Ifrim, Christina},
  title={A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico},
  year={2005},
  pages={401-418},
  language={eng},
  issn={1026-8774},
  volume={22},
  number={3},
  note={Gesehen am 07.05.2015},
  journal={Revista mexicana de ciencias geológicas},
}
@article{UBHD-68638677,
  author={Tajika, Amane and Landman, Neil H. and Hoffmann, René and Lemanis, Robert and Morimoto, Naoki and Ifrim, Christina and Klug, Christian},
  title={Chamber volume development, metabolic rates, and selective extinction in cephalopods},
  year={2020},
  language={eng},
  issn={2045-2322},
  volume={10(2020) Artikel-Nummer 2950},
  number={11 Seiten},
  note={Gesehen am 18.09.2020},
  journal={Scientific reports},
  doi={10.1038/s41598-020-59748-z},
}
@article{UBHD-68944894,
  author={Walaszczyk, Ireneusz and Čech, Stanislav and Crampton, James S. and Dubicka, Zofia and Ifrim, Christina and Jarvis, Ian and Kennedy, William James and Lees, Jackie A. and Lodowski, Damian and Pearce, Martin and Peryt, Danuta and Sageman, Bradley B. and Schiøler, Poul and Todes, Jordan and Uličný, David and Voigt, Silke and Wiese, Frank and Linnert, Christian and P{\"u}ttmann, Tobias and Toshimitsu, Seiichi},
  title={The Global Boundary Stratotype Section and Point (GSSP) for the base of the Coniacian Stage (Salzgitter-Salder, Germany) and its auxiliary sections (Słupia Nadbrzeżna, central Poland; Střeleč, Czech Republic; and El Rosario, NE Mexico)},
  year={2022},
  pages={181-220},
  language={eng},
  volume={45},
  number={2},
  note={Gesehen am 20.07.2022},
  journal={Episodes},
  doi={10.18814/epiiugs/2021/021022},
}
@book{UBHD-68332250,
  author={Wulff, Lena Caroline and Kaplan, Ulrich and Mutterlose, J{\"o}rg and Hornacsek, Michael and Ifrim, Christina},
  title={Zur sp{\"a}tkretazischen Hebungsgeschichte des Raumes Halle (Westfalen)},
  subtitle={die Biostratigraphie der Rutschmassen des Hesseltals},
  publisher={Landschaftsverband Westfalen-Lippe},
  address={M{\"u}nster},
  year={2017},
  pages={50 Seiten},
  language={ger},
  isbn={978-3-940726-48-3},
  number={ARRAY(0x55b8a6a23780)},
  series={Geologie und Pal{\"a}ontologie in Westfalen},
  keywords={Halle (Westf.) <Region> / Oberkreide / Biostratigraphie ; Bezirk Paderborn / Coniacium / Biostratigraphie / Lithostratigraphie / Sedimentologie ; Osnabr{\"u}cker Land / Hebung <Geologie> / Geologie / Fossil / Oberkreide / Biostratigraphie ; Osnabr{\"u}cker Land / Pal{\"a}otektonik ; Kalkmergel / Paderborn <Region> / Coniacium / Fossil / Kalkstein / Sedimentologie ; Oberkreide / Fossile Muscheln / Fossile Seeigel / Stratigraphie},
}