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Katepensaurus goicoecheai
Taxonomy
Katepensaurus goicoecheai was named by Ibiricu et al. (2013). Its type specimen is UNPSJB-PV 1007, a set of postcrania (an associated partial skeleton consisting of three anterior to middle cervical vertebrae (UNPSJB-PV 1007/1, 1007/2, and 1007/3), three middle to posterior dorsa), and it is a 3D body fossil. Its type locality is Estancia Laguna Palacios "2005 Quarry", which is in a Cenomanian/Turonian fluvial sandstone in the Bajo Barreal Formation of Argentina. It is the type species of Katepensaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Katepensaurus goicoecheai Ibiricu et al. p. 1353 figs. 3-11 |
| 2015 | Katepensaurus goicoecheai Ibiricu et al. p. 431 |
| 2015 | Katepensaurus goicoecheai de Jesus Faria et al. p. 157 |
| 2021 | Katepensaurus goicoecheai Paulina-Carabajal and Calvo p. 1 |
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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.
†Katepensaurus goicoecheai Ibiricu et al. 2013
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. M. Ibiricu et al. 2013 | Katepensaurus goicoecheai possesses the following characters in themiddle to posterior dorsal vertebrae that are here interpreted as autapomorphies: (1) internal lamina divides lateral pneumatic fossa of centrum; (2) vertical ridges or crests present on lateral surface of vertebra, overlying neurocentral junction; (3) pair of laminae in parapophyseal centrodiapophyseal fossa; (4) transverse processes perforated by elliptical fenestrae (that decrease in size posteriorly through the dorsal vertebral series and occupy approximately two-thirds of the mediolateral width of the processes); and (5) well-defined, rounded fossae on lateral aspect of postzygapophyses. | |
| L. M. Ibiricu et al. 2015 | As proposed by Ibiricu et al. (2013a), Katepensaurus goicoecheai has the following autapomorphic characters in the middle to posterior dorsal vertebrae: (1) internal lamina dividing lateral pneumatic fossa of centrum (autapomorphic within Rebbachisauridae but shared with the non-rebbachisaurid diplodocoids Dinheirosaurus lourinhanensis and Supersaurus vivianae); (2) vertical ridges on lateral surface of vertebra overlying neurocentral junction; (3) pair of laminae in parapophyseal centrodiapophyseal fossa; and (4) well-defined rounded fossae on lateral aspect of postzygapophyses. Additionally, two new autapomorphies of the anterior to middle dorsal vertebrae are proposed herein: (5) posterior articular surface of centrum with ventral portion wider than dorsal portion, rendering it ‘teardrop-shaped’ in contour; and (6) ovoid fossa on dorsal aspect of transverse processes in anterior to middle dorsal vertebrae and dorsal transverse processes perforated by elliptical fenestrae in middle to posterior dorsal vertebrae (see Discussion). |
Measurements
No measurements are available
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| Source: infrao = infraorder | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Middle Cenomanian to the top of the Turonian or 100.50000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Cenomanian - Turonian | Argentina (Chubut) | Katepensaurus goicoecheai (type locality: 152253) |