Notosuchia
Notosuchia is a clade of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Jurassic and Cretaceous. Some phylogenies recover Sebecosuchia as a clade within Notosuchia, others as a sister group ; if Sebecosuchia is included within Notosuchia its existence is pushed into the Late Miocene or Early Pliocene, about 7 to 4.5 million years ago. Fossils have been found from South America, Africa, Asia, and Europe. Notosuchia was a clade of terrestrial crocodilians that evolved a range of feeding behaviours, including herbivory (Chimaerasuchus), omnivory (Simosuchus), and terrestrial hypercarnivory (Baurusuchus). It included many members with highly derived traits unusual for crocodylomorphs, including mammal-like teeth, flexible bands of shield-like body armor similar to those of armadillos (Armadillosuchus), and possibly fleshy cheeks and pig-like snouts (Notosuchus). The clade was first named in 1971 by Zulma Gasparini and has since undergone many phylogenetic revisions.

CaptMondo · CC BY-SA 3.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MesoeucrocodyliaPBDB
- Diet
- carnivorePBDB, for Pseudosuchia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Mesoeucrocodylia
Time the record covers
At least 158 million years on record.
The record covers at least 165.3 Mya to 7.246 Mya. No occurrence read is dated outside 168.2 Mya to 3.6 Mya.
261 occurrences of Notosuchia on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
261 occurrences- Middle Jurassicunder 1%
- Early Cretaceous11%
- Late Cretaceous54%
- Paleocene4%
- Eocene20%
- Oligocene3%
- Miocene7%
- Plioceneunder 1%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
79 formations
- Adamantina Formation · Bauru Group39
- Maevarano Formation26
- Bajo de la Carpa Formation · Neuquén Group14
- Vitakri Formation · Fort Munro Group7
- Densuș-Ciula Formation7
- Dinosaur Beds Formation · Lupata Group6
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The named rock units Notosuchia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 55 further formations hold fewer occurrences each and are not listed. 35 occurrences have no formation on record, which is common for older literature.
Notosuchia and its relatives
Late CretaceousWhere Notosuchia and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,386 taxa- Anura20 sites
- Simosuchus clarki20 sites
- Iberosuchus19 sites
- Theropoda19 sites
- Doratodon17 sites
- Crocodyliformes14 sites
- Testudines14 sites
- Osteichthyes13 sites
- Eusuchia12 sites
- Sebecus12 sites
- Titanosauria12 sites
- Abelisauridae10 sites
- Gastropoda10 sites
- Neochelys10 sites
- Sebecosuchia10 sites
- Teleostei10 sites
- Titanosauridae10 sites
- Diplocynodon9 sites
- Lepisosteidae9 sites
- Sebecidae9 sites
- Araripesuchus8 sites
- Caviomorpha8 sites
- Crocodylia8 sites
- Leporinus8 sites
The Paleobiology Database records 221 sites for Notosuchia, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
154 references- Overview of the discovery, distribution, and geological context of Simosuchus clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar18
- Fossil crocodilians from Colombia and the Cenozoic history of the Crocodilia in South America11
- Crocodyliformes and Testudines from the Eocene of the Duero Basin (northwestern Spain): an update of their diversity and stratigraphic context10
- A second peirosaurid crocodyliform from the Mid-Cretaceous Kem Kem Group of Morocco and the diversity of Gondwanan notosuchians outside South America8
- Cretaceous crocodyliformes from the Sahara6
- A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru5
- Mahajangasuchus insignis (Crocodyliformes: Mesoeucrocodylia) cranial anatomy and new data on the origin of the eusuchian-style palate5
- A crocodyliform from the Early Cretaceous Dinosaur Beds, northern Malawi5
- Biotic community and landscape changes around the Eocene–Oligocene transition at Shapaja, Peruvian Amazonia: Regional or global drivers?4
- New material of the ziphodont mesoeucrocodylian Iberosuchus from the Eocene of Languedoc, southern France4
- New Tertiary Sebecosuchia (Crocodylia: Mesosuchia) from Argentina4
- The East Side Story – The Transylvanian latest Cretaceous continental vertebrate record and its implications for understanding Cretaceous–Paleogene boundary events3
Each of the 261 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 142 further references are not listed. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Notosuchia
- Source
- Wikipedia/Commons
- Credit
- CaptMondo
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Notosuchia was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Notosuchia”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMesoeucrocodylia through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gasparini 1971)