Acantholipan

Acantholipan is a genus of herbivorous nodosaurid dinosaur from Mexico from the early Santonian age of the Late Cretaceous. It includes one species, Acantholipan gonzalezi.[1]

Acantholipan
Temporal range: Late Cretaceous, 83.6 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Family: Nodosauridae
Genus: Acantholipan
Rivera-Sylva et al., 2018
Type species
Acantholipan gonzalezi
Rivera-Sylva et al. 2018

Discovery and naming

In the north of Mexico, fragmentary fossils have been found of nodosaurids. A partial skeleton excavated at Los Primos near San Miguel in Coahuila, was described in 2011. When Rivera-Sylva and colleagues reported the discovery of this specimen, CPC 272, they initially considered it too fragmentary to name.[2] Later it was judged that the remains were sufficiently distinct to be given a binomial name.

In 2018, the type species Acantholipan gonzalezi was named by Héctor Eduardo Rivera-Sylva, Eberhard Frey, Wolfgang Stinnesbeck, Gerardo Carbot-Chanona, Iván Erick Sanchez-Uribe and José Rubén Guzmán-Gutiárrez. The generic name combines a Greek akanthos, "spine", with lipan, the usual Spanish designation of the Lépai-Ndé, the "Gray People", a tribe of the Apache inhabiting the area of the find. The specific name honours the Mexican paleontologist Arturo Homero González-González, the chairman of the Museo del Desierto at Saltillo. Acantholipan is the first ankylosaurian species named from Mexico.[1]

The holotype specimen, CPC 272, was found in a marine layer of the Pen Formation and dates from the Santonian. It consists of partial skeleton lacking the skull. Its remains include a back vertebra, a tail vertebra, a piece of a rib, the underside of the left humerus, an upper left ulna, the underside of the left femur and a spike-like osteoderm probably from the posterior thorax.[2] The fossil is part of the Colección Paleontológica de Coahuila, Museo del Desierto, Saltillo.[1]

See also

References

  1. Rivera-Sylva, H.E.; Frey, E.; Stinnesbeck, W.; Carbot-Chanona, G.; Sanchez-Uribe, I.E.; Guzmán-Gutiérrez, J.R. (2018). "Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance". Swiss Journal of Palaeontology. 137 (1): 83–93. doi:10.1007/s13358-018-0153-1. ISSN 1664-2376.
  2. Rivera-Sylva, H.E.; Carpenter, K.; Aranda-Manteca, F.J. (2011). "Late Cretaceous Nodosaurids (Ankylosauria: Ornithischia) from Mexico" (PDF). Revista Mexicana de Ciencias Geológicas. Querétaro, Mexico: Universidad Nacional Autónoma de Mexico. 28 (3): 371–378.
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