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Macrospondylus bollensis

Reptilia

Taxonomy
Geosaurus bollensis was named by Cuvier (1824). Its type specimen is SNSD uncatalogued and is a 3D body fossil. Its type locality is Boll, near Göppingen, which is in a Toarcian marine horizon in the Posidonia Shale Formation of Germany.

It was recombined as Mystriosaurus bollensis by Cuvier (1824) and Perrier (1928); it was synonymized subjectively with Mosasaurus bavaricus by Holl (1829); it was recombined as Macrospondylus bollensis by Von Meyer (1831); it was recombined as Teleosaurus bollensis by Quenstedt (1882); it was recombined as Steneosaurus bollensis by Dollo (1909), Westphal (1961), Westphal (1962), Walkden et al. (1987), Pierce et al. (2009), Nascimento and Zaher (2011) and Bronzati et al. (2012).

Synonyms
Synonymy list
YearName and author
1824Geosaurus bollensis Cuvier p. 73 figs. pls 10-11
1824Mystriosaurus bollensis Cuvier p. 73 figs. pls 10-11
1825Crocodilus cylindrirostris Krüger
1828Geosaurus bollensis Jaeger
1831Crocodilus altorfinus Holl p. 85
1831Macrospondylus bollensis Von Meyer
1834Engyommasaurus brongniarti Kaup
1841Mystriosaurus longipes Bronn
1841Mystriosaurus mandelslohi Bronn
1841Mystriosaurus schmidti Bronn
1841Mystriosaurus tiedmanni Bronn
1841Mystriosaurus egertoni Kaup
1843Mystriosaurus canalifer Munster
1843Mystriosaurus franconicus Munster
1843Mystriosaurus speciosus Munster
1843Mystriosaurus tenuirostris Munster
1844Mystriosaurus senkenbergianus Meyer
1844Mystriosaurus murkii Theodori
1847Macrospondylus jaegeri Gibbel
1847Mystriosaurus muensteri Gibbel
1850Mystriosaurus macrolepidotus Wagner
1850Mystriosaurus munsteri Wagner
1852Teleosaurus minimus Quenstedt
1853Teleosaurus egertoni Pictet p. 485
1853Teleosaurus longipes Pictet p. 485
1853Teleosaurus mandelslohi Pictet p. 485
1853Teleosaurus schmidti Pictet p. 485
1853Teleosaurus tiedemanni Pictet p. 485
1853Teleosaurus minimus Pictet p. 486
1853Teleosaurus munsteri Pictet p. 486
1878Mystriosaurus stukelyi Winkler
1882Teleosaurus bollensis Quenstedt p. 161
1882Teleosaurus minimus Quenstedt p. 162
1909Steneosaurus bollensis Dollo p. 100
1928Mystriosaurus bollensis Perrier p. 3089
1961Steneosaurus bollensis Westphal p. 208
1962Steneosaurus bollensis Westphal p. 29 figs. 2-5, 10-19
1987Steneosaurus bollensis Walkden et al.
2009Steneosaurus bollensis Pierce et al. pp. 1085-1086
2011Steneosaurus bollensis Nascimento and Zaher
2012Steneosaurus bollensis Bronzati et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
RankNameAuthor
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
Pseudosuchia(Zittel 1890)
SuchiaKrebs 1974
Paracrocodylomorpha
Loricata(Merrem 1820)
Crocodylomorpha()
Thalattosuchia()
genusMacrospondylusMunster 1834
speciesbollensis(Cuvier 1824)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Macrospondylus bollensis Cuvier 1824
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Invalid names: Crocodilus altorfinus Holl 1831 [synonym], Crocodilus cylindrirostris Krüger 1825 [synonym], Engyommasaurus brongniarti Kaup 1834 [synonym], Macrospondylus jaegeri Gibbel 1847 [synonym], Mystriosaurus canalifer Munster 1843 [synonym], Mystriosaurus egertoni Kaup 1841 [synonym], Mystriosaurus franconicus Munster 1843 [synonym], Mystriosaurus longipes Bronn 1841 [synonym], Mystriosaurus macrolepidotus Wagner 1850 [synonym], Mystriosaurus mandelslohi Bronn 1841 [synonym], Mystriosaurus muensteri Gibbel 1847 [synonym], Mystriosaurus munsteri Wagner 1850 [synonym], Mystriosaurus murkii Theodori 1844 [synonym], Mystriosaurus schmidti Bronn 1841 [synonym], Mystriosaurus senkenbergianus Meyer 1844 [synonym], Mystriosaurus speciosus Munster 1843 [synonym], Mystriosaurus stukelyi Winkler 1878 [synonym], Mystriosaurus tenuirostris Munster 1843 [synonym], Mystriosaurus tiedmanni Bronn 1841 [synonym], Teleosaurus minimus Quenstedt 1852 [synonym]
Diagnosis
ReferenceDiagnosis
S. E. Pierce et al. 2009Steneosaurus bollensis is a long-snouted teleosaurid characterized by large, flat skull; long, narrow rostrum that gradually broadens posteriorly; lacrimal and postorbital separated by jugal; small, slit-like antorbital fenestra; small, elliptical orbit; large, longitudinally expanded supratemporal fenestra; ornamentation present on frontal, prefrontals, postorbitals, squamosals and parietal; diastema present between premaxillary and maxillary suture; 24–35 teeth on maxilla; 26–34 teeth on dentary; teeth apically recurved with pointed apex and tooth enamel with very fine vertical striations and a single smooth carina running down posterior edge.
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Environment: marinesubo
Locomotion: actively mobilesubo
Life habit: nektonicsubo
Diet: carnivoresubo
Created: 2009-07-23 01:12:29
Modified: 2009-07-23 03:12:29
Source: subo = suborder
Reference: Kiessling 2004

Age range: base of the Toarcian to the top of the Late/Upper Toarcian or 182.70000 to 175.60000 Ma

Collections (21 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Jurassic201.3 - 174.1Germany (Lower Franconia) Steneosaurus bollensis (132863)
Early/Lower Jurassic201.3 - 174.1Germany (Albvorland) Steneosaurus bollensis (132860)
Early/Lower Toarcian183.0 - 182.0Germany (Baden-Württenburg) Mystriosaurus mandelslohi (132854) Steneosaurus bollensis (91659 132864)
Early/Lower Toarcian183.0 - 182.0Germany (Bavaria) Mystriosaurus franconicus (132862)
Early/Lower Toarcian183.0 - 182.0Germany (Würtemberg) Mystriosaurus senkenbergianus (132858) Mystriosaurus tiedmanni, Mystriosaurus longipes (132856) Steneosaurus bollensis (type locality: 132852)
Early/Lower Toarcian183.0 - 182.0Germany (Bayern) Steneosaurus bollensis (28506)
Early/Lower Toarcian183.0 - 182.0Germany (Baden-Württemberg) Mystriosaurus schmidti (132855) Steneosaurus bollensis (132853)
Early/Lower Toarcian183.0 - 182.0Germany (Baden-Würtemberg) Mystriosaurus canalifer, Mystriosaurus muensteri (132857)
Falciferum183.0 - 182.0United Kingdom (Yorkshire) Steneosaurus bollensis (154228)
Falciferum183.0 - 182.0Luxembourg Steneosaurus bollensis (105427 106696)
Falciferum - Bifrons183.0 - 175.6United Kingdom (England) Steneosaurus bollensis (90459)
Toarcian182.7 - 174.1Germany Teleosaurus minimus (131924)
Toarcian182.7 - 174.1Germany (Nördliche Frankenalb) Steneosaurus bollensis, Mystriosaurus murkii (132859)
Late/Upper Toarcian180.1 - 175.6Germany Mystriosaurus egertoni, Mystriosaurus speciosus, Mystriosaurus tenuirostris (38639) Mystriosaurus macrolepidotus (132866)