Skull of the dyrosaurid Arambourgisuchus khouribgaensis
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Clade:
Archosauria
Clade:
Pseudosuchia
Clade:
Crocodylomorpha
Clade:
Crocodyliformes
Suborder:
†Tethysuchia
Family:
†Dyrosauridae de Stefano, 1903
Genera
†Anthracosuchus
†Cerrejonisuchus
†Chenanisuchus
†Guarinisuchus
†Rodeosuchus
†Phosphatosaurinae
†Phosphatosaurus
†Sokotosuchus
†Hyposaurinae
†Acherontisuchus
†Aigialosuchus
†Arambourgisuchus
†Atlantosuchus
†Brachiosuchus
†Congosaurus
†Dorbignysuchus
†Dyrosaurus
†Hyposaurus
†Luciasuchus
†Rhabdognathus
†Tilemsisuchus
Dyrosauridae is a family of extinct neosuchian crocodyliforms that lived from the Campanian to the Eocene. Dyrosaurid fossils are globally distributed, having been found in Africa, Asia, Europe, North America and South America. Over a dozen species are currently known, varying greatly in overall size and cranial shape. A majority were aquatic, some terrestrial and others fully marine (see locomotion below), with species inhabiting both freshwater and marine environments. Ocean-dwelling dyrosaurids were among the few marine reptiles to survive the Cretaceous–Paleogene extinction event.
The dyrosaurids were a group of mostly marine, long jawed, crocodile-like quadrupeds up to 6 metres (20 ft) long.[1] The largest dyrosaurid was probably Phosphatosaurus estimated at 9 m (30 ft) in length.[2][3] Based on bone tissue evidence, it has been hypothesized that they were slow-growing[4] near-shore marine animals with interlocking closed jaws,[4] able to swim as well as walk on land. External nostrils at the posterior end of its snout and an internal naris in its pterygoid indicated a habit of hunting while swimming with the top of the head above the water, enabling it to breathe while stalking prey.[1]
^ abJouve, Stéphane (March 2005). "A new description of the skull of Dyrosaurus phosphaticus (Thomas, 1893) (Mesoeucrocodylia: Dyrosauridae) from the Lower Eocene of North Africa". Canadian Journal of Earth Sciences. 42 (3): 323–337. Bibcode:2005CaJES..42..323J. doi:10.1139/e05-008. ISSN 0008-4077. Retrieved March 22, 2021.
^Buffetaut, E. (1978). "Les Dyrosauridae (Crocodylia, Mesosuchia) des phosphates de l'Eocène inférieur de Tunisie: Dyrosaurus, Rhabdognathus, Phosphatosaurus". Géologie Méditerranéenne. 5 (2): 237–256. doi:10.3406/geolm.1978.1046.
^Martin, Jeremy E.; Antoine, Pierre-Olivier; Perrier, Vincent; Welcomme, Jean-Loup; Metais, Gregoire; Marivaux, Laurent (2019-07-04). "A large crocodyloid from the Oligocene of the Bugti Hills, Pakistan" (PDF). Journal of Vertebrate Paleontology. 39 (4): e1671427. Bibcode:2019JVPal..39E1427M. doi:10.1080/02724634.2019.1671427. ISSN 0272-4634. S2CID 209439989.
^ abCite error: The named reference andrade was invoked but never defined (see the help page).
Dyrosauridae is a family of extinct neosuchian crocodyliforms that lived from the Campanian to the Eocene. Dyrosaurid fossils are globally distributed...
the Early Cretaceous, which includes modern crocodilians. Along with Dyrosauridae and Sebecosuchia, they were the only crocodyliformes who survived the...
an estimated body length of 6.5 metres (21 ft). Although the family Dyrosauridae is quite diverse and contains a variety of species, the genus Dyrosaurus...
Buffetaut, E. (1979). "Présence du Crocodilien Phosphatosaurus (Mesosuchia, Dyrosauridae) dans le Paléocène du Niger et du Mali". Paläontologische Zeitschrift...
north-eastern Colombia: biogeographic and behavioural implications for New-World Dyrosauridae: SECOND NEW DYROSAURID FROM COLOMBIA". Palaeontology. 54 (5): 1095–1116...
Pholidosauridae is usually considered to be most closely related to the Dyrosauridae. However, the relationship between these families is not fully understood...
(2024). "Form and function of the pelvic girdle of Thalattosuchia and Dyrosauridae (Crocodyliformes)". Geodiversitas. 46 (6): 135–326. doi:10.5252/geodiversitas2024v46a6...
Family Pholidosauridae Suborder Tethysuchia Family Elosuchidae Family Dyrosauridae Family Pholidosauridae Family Stomatosuchidae Family Bernissartiidae...
boundary of Niger: potential evidence for an early origin of the clade Dyrosauridae. Zoological Journal of the Linnean Society 179. 377–403. . A. F. d. Lapparent...
more derived position in Tethysuchia, being phylogenetically closer to Dyrosauridae. Simplified cladogram after Fortier et al. (2011). During the course...
(earliest Paleocene age). It is a mesosuchian crocodyliform in the family Dyrosauridae. It is closely related to dyrosaurs and congosaurs (Schwarz-Wings). The...
and even invaded the seas (e.g., the teleosaurs, Metriorhynchidae and Dyrosauridae). The Metriorhynchidae were rather dolphin-like, with paddle-like forelimbs...
considered to be a synonym of Dyrosauridae or Pholidosauridae for many years. In most phylogenetic analyses the node Dyrosauridae+Pholidosauridae was strongly...
since 2016 it has been repeatedly placed within the more basal family Dyrosauridae. In the Cretaceous, southern Scandinavia was covered by shallow sea and...
(2010) showing the phylogenetic relationship of Cerrejonisuchus within Dyrosauridae: Cerrejonisuchus likely had a diet consisting of fish, invertebrates...
doi:10.1111/pala.12086. S2CID 128482290. Buffetaut, E. (1978). "Les Dyrosauridae (Crocodylia, Mesosuchia) des phosphates de l'Eocène inférieur de Tunisie:...
with taxa like Sarcosuchus in a clade as a sister-taxon to the node Dyrosauridae+Pholidosauridae. Louise M. V. Meunier; Hans C. E. Larsson (2016). "Revision...
species, and instead is closely related to Fortignathus and members of Dyrosauridae. Richard Lydekker assigned Pholidosaurus to the family Goniopholididae...
into the Campanian and, along with Brachiosuchus basal position within dyrosauridae supports a dispersal of the group from Africa. The enlarged forearms...
taphonomic weathering. The cladogram below shows the inner relationship of Dyrosauridae following the work of Jouve et al. 2020. Anthracosuchus balrogus has...
Cretaceous boundary of Niger: potential evidence for an early origin of the clade Dyrosauridae. Zoological Journal of the Linnean Society 179. 377–403. ....
5–80.5 mya Kristianstad Basin, Sweden A member of the extinct family Dyrosauridae, Aigialosaurus was a long- and narrow-snouted crocodylomorph. In contrast...
crocodyliform from the Palaeocene of Morocco and a phylogenetic analysis of Dyrosauridae". Acta Palaeontologica Polonica. 50 (3): 581–594. Jonet, S.; Wouters...
boundary of Niger: potential evidence for an early origin of the clade Dyrosauridae". Zoological Journal of the Linnean Society. doi:10.1111/zoj.12452. ISSN 0024-4082...
Global Information
