1,721,914 research outputs found
A review of large Cretaceous ornithopod tracks, with special reference to their ichnotaxonomy
No full textTrackways of ornithopods are well-known from the Lower Cretaceous of Europe, North America, and East Asia. For historical reasons, most large ornithopod footprints are associated with the genus Iguanodon or, more generally, with the family Iguanodontidae. Moreover, this general category of footprints is considered to be sufficiently dominant at this time as to characterize a global Early Cretaceous biochron. However, six valid ornithopod ichnogenera have been named from the Cretaceous, including several that are represented by multiple ichnospecies: these are Amblydactylus (two ichnospecies); Caririchnium (four ichnospecies); Iguanodontipus, Ornithopodichnus originally named from Lower Cretaceous deposits and Hadrosauropodus (two ichnospecies); and Jiayinosauropus based on Upper Cretaceous tracks. It has recently been suggested that ornithopod ichnotaxonomy is oversplit and that Caririchnium is a senior subjective synonym of Hadrosauropodus and Amblydactylus is a senior subjective synonym of Iguanodontipus. Although it is agreed that many ornithopod tracks are difficult to differentiate, this proposed synonymy is questionable because it was not based on a detailed study of the holotypes, and did not consider all valid ornithopod ichnotaxa or the variation reported within the six named ichnogenera and 11 named ichnospecies reviewed here. We therefore emphasize the need to base comparisons between ichnotaxa on type material, and not on selected referred material. It is concluded that there is considerable variation in the morphology of the holotypes, as well as variation in size and quality of the samples and the mode of preservation. Conversely, there is considerable overlap in morphology among other tracks that have been informally attributed to these ichnotaxa. These factors make it difficult to synonymize any of the existing ichnotaxa without detailed revision of the samples from which the type material originates. Nevertheless, a review of the type material of all ichnotaxa is presented as a basis for further discussion and, as a first step, the ichnofamily Iguanodontipodidae is proposed to accommodate Amblydactylus, Caririchnium and Iguanodontipus
Cretampulex Antropov 2000
No full text3.440 Genus Cretampulex Antropov, 2000 Cretampulex Antropov, 2000: 66. Type species: Cretampulex gracilis Antropov, 2000.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 347, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Eophlebotomus Cockerell 1920
No full text3.374 Genus Eophlebotomus Cockerell, 1920 Eophlebotomus Cockerell, 1920a: 169. Type Specie: Eophlebotomus connectens Cockerell 1920.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on pages 332-333, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Protragoneura Blagoderov & Grimaldi 2004
No full text3.370 Genus Protragoneura Blagoderov & Grimaldi, 2004 Protragoneura Blagoderov & Grimaldi, 2004: 52. Type species: Protragoneura platycera Blagoderov & Grimaldi, 2004.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 332, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Disparoleia cristata Blagoderov & Grimaldi 2004
No full text454) Disparoleia cristata Blagoderov & Grimaldi, 2004 Disparoleia cristata Blagoderov & Grimaldi, 2004: 48. Type specimen(s). H (♀): AMNH B-0125 (AMNH).Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 331, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Sorellembia estherae Engel & Grimaldi 2006
No full text241) Sorellembia estherae Engel & Grimaldi, 2006 Sorellembia estherae Engel & Grimaldi, 2006a: 5. Type specimen(s). H (♂): AMNH Bu-227 (AMNH).Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 292, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Tethepomyia Grimaldi & Cumming 1999
No full text3.349 Genus Tethepomyia Grimaldi & Cumming, 1999 Tethepomyia Grimaldi & Cumming, 1999: 6. Type species: Tethepomyia thauma Grimaldi & Cumming, 1999.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 327, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Creagroparaberotha groehni Makarkin 2015
No full text329) Creagroparaberotha groehni Makarkin, 2015 Creagroparaberotha groehni Makarkin, 2015a: 329. Type specimen(s). H: GPIH Typ. Kat. Nr. 4568 (GPIH).Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 309, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Xenozorotypus burmiticus Engel & Grimaldi 2002
No full text245) Xenozorotypus burmiticus Engel & Grimaldi, 2002 Xenozorotypus burmiticus Engel & Grimaldi, 2002: 13. Type specimen(s). H (♂): Bu 182 (AMNH).Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 293, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
Cretakarenni Peris & Delclos 2015
No full text3.317 Genus Cretakarenni Peris & Delclòs, 2015 Cretakarenni Peris & Delclòs, 2015: 335. Type species: Cretakarenni birmanicus Peris & Delclòs, 2015.Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 320, DOI: 10.11865/zs.201715, http://zenodo.org/record/536031
- …
