Desmatosuchinae is a major
subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...
of
aetosaur
Aetosaurs () are heavily armored reptiles belonging to the extinct order Aetosauria (; from Greek, (aetos, "eagle") and (, "lizard")). They were medium- to large-sized omnivorous or herbivorous pseudosuchians, part of the branch of archosaurs ...
s within the
clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
Desmatosuchia
Aetosaurs () are heavily armored reptiles belonging to the extinct order (biology), order Aetosauria (; from Ancient Greek, Greek, (aetos, "eagle") and (, "lizard")). They were medium- to large-sized Omnivore, omnivorous or Herbivore, herbivoro ...
.
It is a
stem-based taxon
Phylogenetic nomenclature is a method of nomenclature for taxa in biology that uses phylogenetic definitions for taxon names as explained below. This contrasts with the traditional approach, in which taxon names are defined by a '' type'', which ...
defined as all aetosaurs more closely related to ''
Desmatosuchus
''Desmatosuchus'' (, from Greek δεσμός ''desmos'' 'link' + σοῦχος ''soûkhos'' 'crocodile') is an extinct genus of archosaur belonging to the Order Aetosauria. It lived during the Late Triassic.
Description
''Desmatosuchus'' was a ...
'' than to ''
Stagonolepis
''Stagonolepis'' is an extinct genus of stagonolepidid aetosaur known from the Late Triassic (Carnian stage) Hassberge Formation of Germany, the Drawno Beds of Poland, and the Lossiemouth Sandstone of Scotland. Supposed fossils from North and ...
,''
''
Aetosaurus
''Aetosaurus'' is an extinct genus of pseudosuchian reptile belonging to the order Aetosauria. It is generally considered to be the most primitive aetosaur. Three species are currently recognized: ''A. ferratus'', the type species from Germany an ...
'', or ''
Paratypothorax
''Paratypothorax'' is an extinct genus of aetosaur, known from a single species, ''Paratypothorax andressorum''. It was a broadly distributed member of the group found in Germany, North America, and possibly parts of Gondwana. The best specimen ...
''.
The clade Desmatosuchinae has often been restricted to a few closely-related aetosaurs with spiny armor, such as ''Desmatosuchus'', ''
Longosuchus
''Longosuchus'' (meaning "Long's crocodile") is an extinct genus of aetosaur from the Late Triassic of North America and Morocco
Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of Nort ...
'', and ''
Lucasuchus
''Lucasuchus'' is an extinct genus of aetosaur. Fossils have been found from the Bull Canyon Formation of the Dockum Group outcropping in the Revuelto Creek locality in Quay County, New Mexico. All specimens date back to the Norian stage of the ...
''.
It was later expanded to include a number of ''
Stagonolepis
''Stagonolepis'' is an extinct genus of stagonolepidid aetosaur known from the Late Triassic (Carnian stage) Hassberge Formation of Germany, the Drawno Beds of Poland, and the Lossiemouth Sandstone of Scotland. Supposed fossils from North and ...
''-like aetosaurs with less specialized armor. Under this more expansive usage, the strongly-supported clade encompassing "traditional" desmatosuchines (''sensu stricto'') was given a new name, Desmatosuchini.
Synapomorphies
In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have ...
that diagnose this clade can be found in the
osteoderm
Osteoderms are bony deposits forming scales, plates, or other structures based in the dermis. Osteoderms are found in many groups of extant and extinct reptiles and amphibians, including lizards, crocodilians, frogs, temnospondyls (extinct amp ...
s. These include tongue-and-groove articulations for lateral plates present in dorsal presacral paramedian plates and large spikes on the lateral cervical, dorsal, and caudal plates.
Timeline of generic descriptions
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from: 1890 till: 1900 color:1800syears text:90s
The 90s ran from 90 AD to 99 AD.
Significant people
* Titus Flavius Domitianus, Roman Emperor (AD 81– 96)
* Nerva, Roman Emperor (AD 96
AD 96 ( XCVI) was a leap year starting on Friday (link will display the full calendar) of the Jul ...
from: 1900 till: 1910 color:1900syears text: 00s
from: 1910 till: 1920 color:1900syears text:10s
The 10s decade ran from January 1, AD 10, to December 31, AD 19.
In Europe, the decade saw the end of the Early Imperial campaigns in Germania when Roman forces led by Germanicus defeated Germanic tribes in the Battle of Idistaviso in 16 AD. I ...
from: 1920 till: 1930 color:1900syears text: 20s
from: 1930 till: 1940 color:1900syears text:30s
The prokaryotic small ribosomal subunit, or 30 S subunit, is the smaller subunit of the 70S ribosome found in prokaryotes. It is a complex of the 16S ribosomal RNA (rRNA) and 19 proteins. This complex is implicated in the binding of transfer ...
from: 1940 till: 1950 color:1900syears text:40s
The eukaryotic small ribosomal subunit (40S) is the smaller subunit of the eukaryotic 80S ribosomes, with the other major component being the large ribosomal subunit (60S). The "40S" and "60S" names originate from the convention that ribosomal pa ...
from: 1950 till: 1960 color:1900syears text:50s
The 50s decade ran from January 1, 50, to December 31, 59. It was the sixth decade in the Anno Domini/Common Era, if the nine-year period from 1 AD to 9 AD is considered as a "decade".
Significant people
* Claudius, Roman Emperor (AD 41â ...
from: 1960 till: 1970 color:1900syears text: 60s
from: 1970 till: 1980 color:1900syears text:70s
Ribosomes ( ) are macromolecular machines, found within all cells, that perform biological protein synthesis (mRNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to for ...
from: 1980 till: 1990 color:1900syears text:80s
Ribosomes are a large and complex molecular machine that catalyzes the synthesis of proteins, referred to as translation. The ribosome selects aminoacylated transfer RNAs (tRNAs) based on the sequence of a protein-encoding messenger RNA (mRNA) ...
from: 1990 till: 2000 color:1900syears text:90s
The 90s ran from 90 AD to 99 AD.
Significant people
* Titus Flavius Domitianus, Roman Emperor (AD 81– 96)
* Nerva, Roman Emperor (AD 96
AD 96 ( XCVI) was a leap year starting on Friday (link will display the full calendar) of the Jul ...
from: 2000 till: 2010 color:2000syears text: 00s
from: 2010 till: 2020 color:2000syears text:10s
The 10s decade ran from January 1, AD 10, to December 31, AD 19.
In Europe, the decade saw the end of the Early Imperial campaigns in Germania when Roman forces led by Germanicus defeated Germanic tribes in the Battle of Idistaviso in 16 AD. I ...
from: 2020 till: 2030 color:2000syears text: 20s
from: 2030 till: 2035 color:2000syears text:30s
The prokaryotic small ribosomal subunit, or 30 S subunit, is the smaller subunit of the 70S ribosome found in prokaryotes. It is a complex of the 16S ribosomal RNA (rRNA) and 19 proteins. This complex is implicated in the binding of transfer ...
bar:eratop
from: 1890 till: 1900 color:1800s text:19th
19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number.
Mathematics
19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full re ...
from: 1900 till: 2000 color:1900s text: 20th
from: 2000 till: 2035 color:2000s text: 21st
PlotData=
align:left fontsize:M mark:(line,white) width:5 anchor:till align:left
color:1900s bar:NAM1 at:1990 mark:(line,black) text: Longosuchus meadei
color:1900s bar:NAM3 at:1995 mark:(line,black) text: Lucasuchus hunti
color:1900s bar:NAM5 at:2008 mark:(line,black) text: Sierritasuchus macalpini
color:1800s bar:NAM1 at:1892 mark:(line,black) text: Desmatosuchus haplocerus
color:1900s bar:NAM2 at:1921 mark:(line,black) text:Desmatosuchus
''Desmatosuchus'' (, from Greek δεσμός ''desmos'' 'link' + σοῦχος ''soûkhos'' 'crocodile') is an extinct genus of archosaur belonging to the Order Aetosauria. It lived during the Late Triassic.
Description
''Desmatosuchus'' was a ...
& D. spurensis
color:1900s bar:NAM4 at:2005 mark:(line,black) text: Desmatosuchus smalli
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bar:period
from: 1890 till: 1900 color:1800syears text:90s
The 90s ran from 90 AD to 99 AD.
Significant people
* Titus Flavius Domitianus, Roman Emperor (AD 81– 96)
* Nerva, Roman Emperor (AD 96
AD 96 ( XCVI) was a leap year starting on Friday (link will display the full calendar) of the Jul ...
from: 1900 till: 1910 color:1900syears text: 00s
from: 1910 till: 1920 color:1900syears text:10s
The 10s decade ran from January 1, AD 10, to December 31, AD 19.
In Europe, the decade saw the end of the Early Imperial campaigns in Germania when Roman forces led by Germanicus defeated Germanic tribes in the Battle of Idistaviso in 16 AD. I ...
from: 1920 till: 1930 color:1900syears text: 20s
from: 1930 till: 1940 color:1900syears text:30s
The prokaryotic small ribosomal subunit, or 30 S subunit, is the smaller subunit of the 70S ribosome found in prokaryotes. It is a complex of the 16S ribosomal RNA (rRNA) and 19 proteins. This complex is implicated in the binding of transfer ...
from: 1940 till: 1950 color:1900syears text:40s
The eukaryotic small ribosomal subunit (40S) is the smaller subunit of the eukaryotic 80S ribosomes, with the other major component being the large ribosomal subunit (60S). The "40S" and "60S" names originate from the convention that ribosomal pa ...
from: 1950 till: 1960 color:1900syears text:50s
The 50s decade ran from January 1, 50, to December 31, 59. It was the sixth decade in the Anno Domini/Common Era, if the nine-year period from 1 AD to 9 AD is considered as a "decade".
Significant people
* Claudius, Roman Emperor (AD 41â ...
from: 1960 till: 1970 color:1900syears text: 60s
from: 1970 till: 1980 color:1900syears text:70s
Ribosomes ( ) are macromolecular machines, found within all cells, that perform biological protein synthesis (mRNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to for ...
from: 1980 till: 1990 color:1900syears text:80s
Ribosomes are a large and complex molecular machine that catalyzes the synthesis of proteins, referred to as translation. The ribosome selects aminoacylated transfer RNAs (tRNAs) based on the sequence of a protein-encoding messenger RNA (mRNA) ...
from: 1990 till: 2000 color:1900syears text:90s
The 90s ran from 90 AD to 99 AD.
Significant people
* Titus Flavius Domitianus, Roman Emperor (AD 81– 96)
* Nerva, Roman Emperor (AD 96
AD 96 ( XCVI) was a leap year starting on Friday (link will display the full calendar) of the Jul ...
from: 2000 till: 2010 color:2000syears text: 00s
from: 2010 till: 2020 color:2000syears text:10s
The 10s decade ran from January 1, AD 10, to December 31, AD 19.
In Europe, the decade saw the end of the Early Imperial campaigns in Germania when Roman forces led by Germanicus defeated Germanic tribes in the Battle of Idistaviso in 16 AD. I ...
from: 2020 till: 2030 color:2000syears text: 20s
from: 2030 till: 2035 color:2000syears text:30s
The prokaryotic small ribosomal subunit, or 30 S subunit, is the smaller subunit of the 70S ribosome found in prokaryotes. It is a complex of the 16S ribosomal RNA (rRNA) and 19 proteins. This complex is implicated in the binding of transfer ...
bar:era
from: 1890 till: 1900 color:1800s text:19th
19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number.
Mathematics
19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full re ...
from: 1900 till: 2000 color:1900s text: 20th
from: 2000 till: 2035 color:2000s text: 21st
References
{{Taxonbar, from=Q3494921
Aetosaurs
Late Triassic first appearances