Clade | |
Subclade |
Taxon | |
Taxon |
Spinosauridae
|
Nominal Author | Stromer 1915 |
2nd Nominal Author | |
Taxon Status | ACTIVE |
Comments | Sereno (1998) provided the first definition. The active definition uses species as specifiers and includes two additional external specifiers (Allosaurus fragilis, Passer domesticus) to ensure stability in taxonomic content, should spinosaurids prove to have closer relationships with other basal theropods. |
Potential Synonomy |
Active Phylogenetic Definition | |
Active Definition |
The most inclusive clade containing Spinosaurus aegyptiacus Stromer 1915 but not Torvosaurus tanneri Galton and Jensen 1979, Allosaurus fragilis Marsh 1877, Passer domesticus (Linnaeus 1758).
|
Shorthand |
> Spinosaurus aegyptiacus but not Torvosaurus tanneri, Allosaurus fragilis, Passer domesticus. |
Definitional Author |
Sereno 2005 |
Definition Status | checked |
Definition Type | STEM |
Node-Stem Triplet | STEM |
Other Triplet Taxa |
Spinosauroidea, Torvosauridae |
Specifiers | |
Specifier(s) A |
Spinosaurus aegyptiacus |
Specifier(s) B | |
Specifier(s) C |
Torvosaurus tanneri, Allosaurus fragilis, Passer domesticus
|
Qualifiers | |
+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown 1998 |
Inactive Taxon Status | |
Rejection Criteria | |
Critique | |
Definitional History #1 | |
Earliest Record | All spinosauroids closer to Spinosaurus than to Torvosaurus. |
Latest Record | Sereno 1998:64 |
Range (My) | |
Range (My) |
Spinosaurus,Torvosaurus |
Range (My) |
Definitional History #2 | |
Earliest Record | Spinosaurus aegyptiacus and all taxa sharing a more recent common ancestor with it than with Passer domesticus. |
Latest Record | Holtz et al. 2004:97 |
Range (My) | |
Range (My) |
Spinosaurus aegyptiacus, Passer domesticus |
Range (My) |
Definitional History #3 | |
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Definitional History #6 | |
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Definitional History #7 | |
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Definitional History #8 | |
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Definitional History #9 | |
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Definitional History #10 | |
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