Skeletal diagram of genera Suchomimus and Baryonyx
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
Saurischia
Clade:
Theropoda
Family:
†Spinosauridae
Subfamily:
†Baryonychinae Charig & Milner, 1986
Type species
†Baryonyx walkeri
Charig & Milner, 1986
Subgroups
†Baryonyx
†Cristatusaurus?
†Protathlitis
†Riojavenatrix
†Suchosaurus
†Ceratosuchopsini
†Ceratosuchops
†Riparovenator
†Suchomimus
Baryonychinae is an extinct clade or subfamily of spinosaurids from the Early Cretaceous (Valanginian-Albian) of Britain, Portugal, and Niger. The clade was named by Charig & Milner in 1986 and defined by Sereno et al. in 1998 and Holtz et al. in 2004 as all taxa more closely related to Baryonyx walkeri than to Spinosaurus aegyptiacus.[1]
Baryonychines were large, bipedal predators with elongated, crocodile-like skulls and lower jaw tips fanning out into rosettes bearing conical, often unserrated, teeth, and a distinct premaxillary notch. They possessed robust forelimbs supporting three-fingered hands with an enlarged first digit claw, to which the subfamily name indirectly refers. Members of this group, unlike the more derived Spinosaurinae, sported only low sails or none at all.
^Holtz, Thomas R.; Molnar, Ralph E.; Currie, Philip J. (2019). "Basal Tetanurae". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The Dinosauria, Second Edition. pp. 71–110. doi:10.1525/9780520941434-009. ISBN 978-0-520-94143-4. S2CID 226816827.
Baryonychinae is an extinct clade or subfamily of spinosaurids from the Early Cretaceous (Valanginian-Albian) of Britain, Portugal, and Niger. The clade...
cinctorrensis, known from a partial skeleton. It was a basal member of the Baryonychinae. Its discovery, as well as those of the spinosaurids Camarillasaurus...
within the Baryonychinae to encompass Suchomimus, Riparovenator, and Ceratosuchops. The 2017 study mentioned above indicates that Baryonychinae may in fact...
family Spinosauridae, which includes two subfamilies: Baryonychinae and Spinosaurinae. Baryonychinae includes Baryonyx from southern England and Suchomimus...
Suchomimus to the Spinosauridae and named two subfamilies within this clade, Baryonychinae (all spinosaurids more closely related to Baryonyx) and Spinosaurinae...
based on the features of the pubis and femur, and more precisely to Baryonychinae based on the features of the femur, fibula, and tibia. Its astragalus...
dinosaurs. Ichthyovenator was initially thought to belong to the subfamily Baryonychinae but more recent analyses place it as a primitive member of the Spinosaurinae...
new subfamily Baryonychinae within Spinosauridae; Spinosaurus and Irritator were placed in the subfamily Spinosaurinae. Baryonychinae was distinguished...
of both Spinosaurinae and Baryonychinae as the most basal (least specialized) spinosaurid, or as a member of the Baryonychinae. They concluded that its...
In 2019, Arden et al. recovered it as a spinosaurid outside of the Baryonychinae and Spinosaurinae. They noted that the anterior end of the dentary is...
Spinosauridae (S. aegyptiacus > P. domesticus, M. bucklandii, A. fragilis) Baryonychinae (Baryonyx walkeri > S. aegyptiacus) Spinosaurinae (S. aegyptiacus >...
it as a valid spinosaurid genus, placing the theropod just outside Baryonychinae. The first fossils of Cristatusaurus were found in 1973 by French paleontologist...
of the Spinosauridae in their phylogenetic analysis, outside of the Baryonychinae/Spinosaurinae split. They further suggested that, due to similarities...
shown to be a spinosaurid theropod dinosaur (incertae sedis within Baryonychinae; possibly a junior synonym of Baryonyx). The Cenomanian Terminonaris...
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