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Dyrosauridae ✝

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Description

Dyrosauridae is a family of extinct neosuchian crocodyliforms that lived from the Late Cretaceous (Maastrichtian) 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. All were presumably aquatic, with species inhabiting both freshwater and marine environments. Ocean-dwelling dyrosaurids were among the few marine reptiles to survive the Cretaceous–Paleogene extinction event.

From Wikipedia article at https://en.wikipedia.org/wiki/Dyrosauridae, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4822244	https://www.gbif.org/species/4822244
PaleoBioDB ID (PBDB)	38370	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38370

Rank

family (GBIF)
unranked clade (PBDB)

Taxonomy (GBIF)

Life : Animalia : Chordata : Reptilia : Crocodylia : Dyrosauridae

Taxonomy (PBDB)

Life : Animalia : Chordata : Reptilia : Eosuchia : Dyrosauridae

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Sauropsida	Huxley 1864
class	Reptilia	Laurenti 1768
subclass	Eureptilia
-	Romeriida	Gauthier et al. 1988
-	Diapsida
-	Eosuchia
-	Neodiapsida	Benton 1985
-	Sauria	Gauthier 1984
-	Archosauromorpha
-	Crocopoda	Ezcurra 2016
-	Archosauriformes	Gauthier 1986
-	Eucrocopoda	Ezcurra 2016
-	Archosauria
-	Pseudosuchia
-	Suchia	Krebs 1974
-	Paracrocodylomorpha	Parrish 1993
-	Loricata
-	Crocodylomorpha
suborder	Crocodyliformes	Hay 1930
-	Mesoeucrocodylia	Whetstone and Whybrow 1983
-	Neosuchia	Clark 1988
-	Coelognathosuchia
-	Tethysuchia
-	Tethysuchoidea	Souza et al. 2019
family	Dyrosauridae

Scientific Name

Dyrosauridae

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Dyrosauridae	subfamily	belongs to Teleosauridae	stated with evidence	Nopcsa, 1928
Dyrosauridae	family	belongs to Mesosuchia	stated with evidence	Kuhn, 1946
Dyrosauridae	family	belongs to Mesosuchia	stated without evidence	Huene, 1954
Dyrosauridae	family	subjective synonym of Congosauridae	stated with evidence	Kuhn, 1966
Dyrosauridae	family	belongs to Mesosuchia	implied	Carroll, 1988
Dyrosauridae	family	belongs to Neosuchia	stated without evidence	Jouve et al., 2005
Dyrosauridae	family	belongs to Neosuchia	stated with evidence	Gasparini et al., 2006
Dyrosauridae	family	belongs to Mesoeucrocodylia	stated without evidence	Hastings et al., 2011
Dyrosauridae	family	belongs to Tethysuchia	stated with evidence	Andrade et al., 2011
Dyrosauridae	family	belongs to Neosuchia	stated with evidence	Bronzati et al., 2012
Dyrosauridae	family	belongs to Tethysuchia	stated with evidence	Young et al., 2016
Dyrosauridae	unranked clade	belongs to Tethysuchoidea	stated with evidence	Souza et al., 2019

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

113 - 101 Ma
Early/Lower Cretaceous

Last Recorded Appearance

41.3 - 33.9 Ma
Paleogene

Environment

marine (based on Mesoeucrocodylia)

Motility

actively mobile (based on Osteichthyes)

Diet

carnivore (based on Pseudosuchia)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

R. L. Carroll. 1988. Vertebrate Paleontology and Evolution

Wikipedia

https://en.wikipedia.org/wiki/Dyrosauridae

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Hyposaurinae ✝ subfamily	listed (PBDB)		2	72.1 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Phosphatosaurinae ✝ subfamily	listed (PBDB)
Acherontisuchus ✝ genus	accepted (GBIF) listed (PBDB)		4	61.7 Ma Paleocene	61.7 Ma Paleocene
Anthracosuchus ✝ genus	doubtful (GBIF) listed (PBDB)		1	61.7 Ma Paleocene	61.7 Ma Paleocene
Arambourgisuchus ✝ genus	accepted (GBIF) listed (PBDB)		1	59.2 Ma Paleocene	59.2 Ma Paleocene
Atlantosuchus ✝ genus	accepted (GBIF) listed (PBDB)		2	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Cerrejonisuchus ✝ genus	accepted (GBIF) listed (PBDB)		1	61.7 Ma Paleocene	61.7 Ma Paleocene
Chenanisuchus ✝ genus	accepted (GBIF) listed (PBDB)	Chenane Crocodile	2	72.1 Ma Late/Upper Cretaceous	59.2 Ma Paleocene
Congosaurus ✝ genus	accepted (GBIF) listed (PBDB)		7	66.0 Ma Late/Upper Cretaceous	56.0 Ma Paleocene
Dyrosaurus ✝ genus	accepted (GBIF) listed (PBDB)		15	113 Ma Early/Lower Cretaceous	41.3 Ma Eocene
Guarinisuchus ✝ genus	accepted (GBIF) listed (PBDB)		2	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Hyposaurus ✝ genus	accepted (GBIF) listed (PBDB)		24	101 Ma Late/Upper Cretaceous	56.8 Ma Paleocene
Oceanosuchus ✝ genus	accepted (GBIF) listed (PBDB)		1	99.6 Ma Late/Upper Cretaceous	99.6 Ma Late/Upper Cretaceous
Phosphatosaurus ✝ genus	accepted (GBIF) listed (PBDB)		8	83.5 Ma Late/Upper Cretaceous	55.8 Ma Eocene
Rhabdognathus ✝ genus	accepted (GBIF) listed (PBDB)		10	72.1 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Sabinosuchus ✝ genus	doubtful (GBIF) listed (PBDB)		1	72.1 Ma Late/Upper Cretaceous	72.1 Ma Late/Upper Cretaceous
Sokotosuchus ✝ genus	accepted (GBIF) listed (PBDB)		2	70.6 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Tilemsisuchus ✝ genus	accepted (GBIF) listed (PBDB)		1	56.0 Ma Paleocene	56.0 Ma Paleocene

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Dyrosaurus minor Swinton, 1930	GBIF	species	Animalia : Chordata : Reptilia : Crocodylia : Dyrosauridae : *Dyrosaurus minor*

Synonymy List

Year	Name and Author
1903	Dyrosauridae de Steffano
1928	Dyrosaurinae Nopcsa p. 186
1930	Dyrosaurus minor Swinton
1946	Dyrosauridae Kuhn p. 64
1954	Dyrosauridae Huene p. 54
1988	Dyrosauridae Carroll
2005	Dyrosauridae Jouve et al. p. 359
2006	Dyrosauridae Gasparini et al. p. 72
2006	Dyrosauridae Jouve et al.

Year	Name and Author
2009	Dyrosauridae Jouve
2010	Dyrosauridae Martin et al.
2011	Dyrosauridae Andrade et al.
2011	Dyrosauridae Hastings et al. p. 1097
2012	Dyrosauridae Bronzati et al.
2013	Dyrosauridae Montefeltro et al.
2016	Dyrosauridae Young et al.
2019	Dyrosauridae Souza et al.

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698

Nopcsa B. F. (1928) The genera of reptiles, Palaeobiologica 1, 163-188

Kuhn O. (1946) Das System der fossilen und rezenten Amphibien und Reptilien [The system of fossil and recent amphibians and reptiles], Bericht der Naturforschenden Gesellschaft in Bamberg 29, 49-67

Huene F. v. (1954) , Die Saurierwelt und ihre Geschichtlichen Zusammenhänge [The World of Reptiles and the History of Their Interrelationships]. 2nd, revised edition, 1-66

Jouve S., Bouya B., et al (2005) A short-snouted dyrosaurid (Crocodyliformes, Mesoeucrocodylia) from the Palaeocene of Morocco, Palaeontology 48 2, 359-369

Gasparini Z., Pol D., et al (2006) An unusual marine crocodyliform from the Jurassic-Cretaceous boundary of Patagonia, Science 311, 70-73

Jouve S., Iarochene M., et al (2006) A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications, Zoological Journal of the Linnean Society 148, 603-656

Jouve S. (2009) The skull of Teleosaurus cadomensis (Crocodylomorpha; Thalattosuchia), and phylogenetic analysis of Thalattosuchia, Journal of Vertebrate Paleontology 29 1, 88-102

Martin J. E., Rabi M., et al (2010) Survival of Theriosuchus (Mesoeucrocodylia: Atoposauridae) in a Late Cretaceous archipelago: a new species from the Maastrichtian of Romania, Naturwissenschaften 97, 845-854 doi:10.1007/s00114-010-0702-y

Andrade M. B. d., Edmonds R., et al (2011) A new Berriasian species of Goniopholis (Mesoeucrocodylia, Neosuchia) from England, and a review of the genus, Zoological Journal of the Linnean Society 163, S66-S108

Hastings A. K., Bloch J. I., et al (2011) A new longirostrine dyrosaurid (Crocodylomorpha, Mesoeucrocodylia) from the Paleocene of north-eastern Colombia: biogeographic and behavioural implications for New-World Dyrosauridae, Palaeontology 54 5, 1095-1116 doi:10.1111/j.1475-4983.2011.01092.x

Bronzati M., Montefeltro F. C., et al (2012) A species-level supertree of Crocodyliformes, Historical Biology 24 6, 598-606

Montefeltro F. C., Larsson H. C. E., et al (2013) A new neosuchian with Asian affinities from the Jurassic of northeastern Brazil, Naturwissenschaften 100 9, 835-841 doi:10.1007/s00114-013-1083-9

Young M. T., Hastings A. K., et al (2016) Revision of the enigmatic crocodyliform Elosuchus felixi de Lapparent de Broin, 2002 from the Lower–Upper Cretaceous boundary of Niger: potential evidence for an early origin of the clade Dyrosauridae, Zoological Journal of the Linnean Society 179 2, 377-403 doi:10.1111/zoj.12452

Souza R. G., Figueiredo R. G., et al (2019) Systematic revision of Sarcosuchus hartti (Crocodyliformes) from the Recôncavo Basin (Early Cretaceous) of Bahia, north-eastern Brazil, Zoological Journal of the Linnean Society doi:10.1093/zoolinnean/zlz057/5546069

Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - via The Interim Register of Marine and Nonmarine Genera

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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