Theriosuchus

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Theriosuchus
Temporal range: Late Jurassic to Early Cretaceous
Theriosuchus.jpg
Fossil of T. pusillus
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Family: †Atoposauridae
Genus: †Theriosuchus
Owen, 1879
Species
  • T. pusillus Owen, 1879 (type)
  • T. grandinaris Lauprasert et al., 2011
  • T. morrisonensis Foster, 2018

Theriosuchus is an extinct genus of atoposaurid mesoeucrocodylian from Late Jurassic to Early Cretaceous of Europe (Hungary & southern England), Southeast Asia (Thailand) and western North America (Wyoming), with fragmentary records from Middle Jurassic and Early Cretaceous sites in China, Morocco, and Scotland.[1]

Taxonomy[]

Skull elements of T. pusillus

Three valid species are currently recognized: Theriosuchus pusillus from southern England,[2] T. grandinaris from Thailand,[3] and T. morrisonensis from the Morrison Formation of North America.[4] Theriosuchus was previously assigned to Atoposauridae, but a 2016 cladistic analysis recovered it as a neosuchian more closely related to members of the family Paralligatoridae than to atoposaurids.[1]

Two species previously assigned to this genus, Theriosuchus ibericus[5] and T. symplesiodon,[6] have been reassigned to the new genus Sabresuchus.[1] On the other hand, Theriosuchus guimarotae from Portugal[7] has been reassigned to Knoetschkesuchus.[8]

Paleobiology[]

Fossils belonging to the genus are abundant at several European sites, namely Dorset, southern England.

References[]

  1. ^ Jump up to: a b c Tennant Jonathan P., Mannion Philip D., Upchurch Paul (2016). "Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia". Zoological Journal of the Linnean Society.CS1 maint: multiple names: authors list (link)
  2. ^ Owen, R. (1879). "Monograph on the fossil Reptilia of the Wealden and Purbeck Formations. Supplement IX, Crocodilia (Goniopholis, Brachydectes, Nannosuchus, Theriosuchus, and Nuthetes)". Palaeontographical Society of London Monograph. 33: 1–19. doi:10.1080/02693445.1879.12027958.CS1 maint: uses authors parameter (link)
  3. ^ Lauprasert Komsorn, Laojumpon Chalida, Saenphala Wanitchaphat, Cuny Gilles, Thirakhupt Kumthorn, Suteethorn Varavudh (2011). "Atoposaurid crocodyliforms from the Khorat Group of Thailand: first record of Theriosuchus from Southeast Asia". Paläontologische Zeitschrift. 85 (1): 37–47. doi:10.1007/s12542-010-0071-z.CS1 maint: multiple names: authors list (link)
  4. ^ Foster, J. (2018). "A new atoposaurid crocodylomorph from the Morrison Formation (Upper Jurassic) of Wyoming, USA". Geology of the Intermountain West. 5: 287–295. doi:10.31711/giw.v5i0.32. ISSN 2380-7601.
  5. ^ Brinkmann, W. (1992). "Die Krokodilier-Fauna aus der Unter-Kreide (Ober-Barremium) von Uña (Provinz Cuenca, Spanien)". Berliner Geowissenschaftliche Abhandlungen (E). 5: 1–123.CS1 maint: uses authors parameter (link)
  6. ^ Martin Jeremy, Rabi Márton, Csiki Zoltán (2010). "Survival of Theriosuchus (Mesoeucrocodylia: Atoposauridae) in a Late Cretaceous archipelago: a new species from the Maastrichtian of Romania". Naturwissenschaften. 97 (9): 845–854. doi:10.1007/s00114-010-0702-y. PMID 20711558.CS1 maint: multiple names: authors list (link)
  7. ^ Schwarz, Daniela and Salisbury, Steven W. (2005). "A new species of Theriosuchus (Atoposauridae, Crocodylomorpha) from the Late Jurassic (Kimmeridgian) of Guimarota, Portugal". Geobios. 38 (6): 779–802. doi:10.1016/j.geobios.2004.04.005. ISSN 0016-6995.CS1 maint: uses authors parameter (link) PDF
  8. ^ Schwarz Daniela, Raddatz Maik, Wings Oliver (2017). "Knoetschkesuchus langenbergensis gen. nov. sp. nov., a new atoposaurid crocodyliform from the Upper Jurassic Langenberg Quarry (Lower Saxony, northwestern Germany), and its relationships to Theriosuchus". PLoS ONE. 12 (2): e0160617. doi:10.1371/journal.pone.0160617. PMC 5310792. PMID 28199316.CS1 maint: multiple names: authors list (link)


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