Validation of Chronocancer camilosantanai† Santana, Tavares, Martins, Melo & Pinheiro (Crustacea, Decapoda, Brachyura) from the Romualdo Formation, Araripe Sedimentary Basin, Brazil

Abstract

Santana et al. (2022) described a new genus and species of fossil crab, Chronocancer camilosantanai, from carbonate concretions of the Romualdo Formation of the Araripe Sedimentary Basin. The journal in which the description appeared was published online only and the new name did not include a ZooBank registration number (LSID), as required for validation of new names in electronic-only publications. The present note serves to validate the name Chronocancer camilosantanai by fulfilling the ICZN conditions for nomenclatural availability. The date and authorship of the specific name, accordingly, are those of this note, not Santana et al. (2022).

Keywords:
Nomenclature; Taxonomy; Brachyura; Crustacea; Fossil; New genus; New species

Santana et al. (2022) described a new genus and species of fossil crab, Chronocancer camilosantanai, from carbonate concretions of the Romualdo Formation of the Araripe Sedimentary Basin. The species was provisionally assigned to the family Orithopsidae. The material is from the early Cretaceous (Aptian-Albian) and was collected in Pernambuco State, northeastern region of Brazil. The work in which Chronocancer camilosantanai was originally described was published in an online only journal (Santana et al., 2020), but did not include the ZooBank registration number (LISD), required for validation of the new names in electronic-only publications [vide Art. 8.5.3 of the amended Code of the International Commission on Zoological Nomenclature (ICZN, 1999, 2012)]. Although the authors provided the journal with ZooBank registrations numbers for the publication, new genus, and new species names (https://zoobank.org/ABBE9A7E-6B7F-42B0-86BA-D4A9E210F957; https://zoobank.org/9C1BEEF6-C594-4706-90E6-71942F9AB8A3; https://zoobank.org/5EE4EB29-3AD6-41EA-A22C-6184B2C1BFA8, respectively), those are not valid as none of them appeared in the final published version of the article, which thus lacks the evidence that the registration had occurred as stipulated by Art. 8.5.3 of the amended Code of the International Commission on Zoological Nomenclature (ICZN, 1999, 2012). Therefore, the present work serves to validate the name Chronocancer camilosantanai by fulfilling the ICZN conditions for nomenclatural availability with new ZooBank registration numbers for the genus and species.

The LSID links are given in the Taxonomy section below and the necessary text was modified from Santana et al., 2022.

Taxonomy

Order Decapoda Latreille, 1802

Infraorder Brachyura Latreille, 1802

Section Raninoida De Haan, 1839

Family Orithopsidae Schweitzer, Feldmann, Fam, Hessin, Hetrick, Nyborg, and Ross, 2003

Chronocancer n. gen. https://zoobank.org/72841747-2B4F-48AB-9C40-1775575694E0

ChronocancerSantana, Tavares, Martins, Melo & Pinheiro, 2022: 3 [unavailable].

Type species:Chronocancer camilosantanai n. gen. n. sp. by present designation and monotypy, gender masculine.

Diagnosis: Carapace longitudinally suboval, wider anteriorly, with marked cervical and shallow branchiocardiac grooves; cardiac and metagastric regions slightly swollen, distinct gastric pits on urogastric region. Rostrum moderately long, extending beyond outer orbital tooth, bifurcated, medially depressed longitudinally; laterally expanded and arched, partially covering eyes (the position of the eye probably suffered from taphonomic bias). Orbit wide; supraorbital margin nearly horizontal; exorbital tooth strong, lobe-like, separated from broadly triangular inner lobe by wide, deep gap. Cheliped robust, propodus subrectangular, slightly longer than high; fingers slender, distinctly longer than palm, leaving large gap proximally, apparently crossing at tip when closed; proximal teeth on cutting edge of fixed finger coalescent, proximal-most stronger; dactyl distinctly slender than fixed finger, its cutting edge sinuous to receive propodal teeth. Legs apparently flattened dorsoventrally.

Etymology: The generic name is a combination of the Greek ‘Kronos’, god of time, Latinized to Chronos, and the Latin ‘Cancer’ (crab).

Chronocancer camilosantanai n. gen. n. sp. https://zoobank.org/05FB140B-46E9-495C-AB27-1AC24CA684F7

Chronocancer camilosantanaiSantana, Tavares, Martins, Melo & Pinheiro, 2022: 4, figs. 2-4. [unavailable].

Holotype: MPPCN CR 4055.

Type locality: District of Caririmirim, Moreilândia, west region of Pernambuco State, 07°33′17.27″S, 39°29′58.86″W.

Stratigraphic unit: Romualdo Formation, Santana Group.

Type age: Lower Cretaceous (Aptian - Albian).

Diagnosis: same as for the genus.

Etymology: The specific epithet “camilosantanai” honors Camilo Sobreira de Santana, one of the main people responsible for the implementation of the sustainable development project of the Araripe Unesco Global Geopark, Ceará, Brazil.

Remarks: A full description and stratigraphic account of Chronocancer camilosantanai n. gen. n. sp. is given by Santana et al. (2022).

ACKNOWLEDGEMENTS

We are grateful to Sammy De Grave (Oxford University Museum of Natural History), who called our attention to the fact that our work ultimately was not registered in ZooBank and therefore do not satisfy the Article 8.5.3 of ICZN (2012).

REFERENCES

• De Haan, W. 1833-1850. Crustacea. In: Siebold, P.F. von (Ed.). Fauna Japonica sive Descriptio Animalium, Quae in Itinere per Japoniam, Jussu et Auspiciis Superiorum, qui Summum in India Batava Imperium Tenent, Suscepto, Annis 1823-1830 Collegit, Noitis, Observationibus et Adumbrationibus Illustravit Leiden: Lugduni-Batavorum. p. i-xvii, i-xxxi, ix-xvi, 1-243, Plates A-J, L-Q, 1-55, circ. Table 2. Available: http://edb.kulib.kyoto-u.ac.jp/exhibit-e/b04/crustacea.html
  » http://edb.kulib.kyoto-u.ac.jp/exhibit-e/b04/crustacea.html
• International Commission on Zoological Nomenclature (ICZN). 1999. International Code of Zoological Nomenclature 4 ed. London, The International Trust for Zoological Nomenclature. xxix+306p.
• International Commission on Zoological Nomenclature (ICZN). 2012. Amendment of Articles 8, 9, 10, 21 and 78 of the International Code of Zoological Nomenclature to expand and refine methods of publication. Bulletin of Zoological Nomenclature, 69: 161-169. https://doi.org/10.21805/bzn.v69i3.a8.161
  » https://doi.org/10.21805/bzn.v69i3.a8.161
• Latreille, P.A. 1802. Histoire naturelle, générale et particulière des Crustacés et des Insectes. Ouvrage faisant suite à l’histoire naturelle générale et particulière, composée par Leclerc de Buffon, et rédigée par C.S. Sonnini, membre de plusieurs sociétés savantes. Familles naturelles des genres Paris, F. DuFart. v. 3.
• Santana, W.; Tavares, M.; Martins, C.A.M.; Melo, J.P.P. & Pinheiro, A.P. 2022. A new genus and species of brachyuran crab (Crustacea, Decapoda) from the Aptian-Albian (Cretaceous) of the Araripe Sedimentary Basin, Brazil. Journal of South American Earth Sciences, 116: 103848. https://doi.org/10.1016/j.jsames.2022.103848
  » https://doi.org/10.1016/j.jsames.2022.103848
• Schweitzer, C.E.; Feldmann, R.M.; Fam, J.M.; Hessin, W.A.; Hetrick, S.W.; Nyborg, T.G. & Ross R.L.M. 2003. Cretaceous and Eocene decapod crustaceans from southern Vancouver Island, British Columbia, Canada Ottawa, Ontario, NRC Research Press. 66p.

• https://zoobank.org/78DD05C2-4A97-4B1D-92D9-06DAC81FE2EF
• Published with the financial support of the "Programa de Apoio às Publicações Científicas da Universidade de São Paulo"

Edited by

Edited by: Carlos José Einicker Lamas.

Publication Dates

• Publication in this collection
  15 May 2023
• Date of issue
  2023

History

• Received
  26 Apr 2023
• Accepted
  02 May 2023
• Published
  03 May 2023