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A New Reptile from the Lower Permian of Brazil (Karutia Fortunata Gen

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A New Reptile from the Lower Permian of Brazil (Karutia Fortunata Gen Journal of Systematic Palaeontology ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/tjsp20 A new reptile from the lower Permian of Brazil (Karutia fortunata gen. et sp. nov.) and the interrelationships of Parareptilia Juan Carlos Cisneros , Christian F. Kammerer , Kenneth D. Angielczyk , Jörg Fröbisch , Claudia Marsicano , Roger M. H. Smith & Martha Richter To cite this article: Juan Carlos Cisneros , Christian F. Kammerer , Kenneth D. Angielczyk , Jörg Fröbisch , Claudia Marsicano , Roger M. H. Smith & Martha Richter (2021): A new reptile from the lower Permian of Brazil (Karutiafortunata gen. et sp. nov.) and the interrelationships of Parareptilia, Journal of Systematic Palaeontology, DOI: 10.1080/14772019.2020.1863487 To link to this article: https://doi.org/10.1080/14772019.2020.1863487 View supplementary material Published online: 12 Jan 2021. Submit your article to this journal Article views: 107 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=tjsp20 Journal of Systematic Palaeontology, 2021 http://dx.doi.org/10.1080/14772019.2020.1863487 A new reptile from the lower Permian of Brazil (Karutia fortunata gen. et sp. nov.) and the interrelationships of Parareptilia aà b c b,d Juan Carlos Cisneros , Christian F. Kammerer , Kenneth D. Angielczyk ,Jorg€ Frobisch€ , Claudia Marsicanoe,f , Roger M. H. Smithg,h and Martha Richteri aMuseu de Arqueologia e Paleontologia, Universidade Federal do Piauı, 64049-550 Teresina, Brazil; bPaleontology Unit, North Carolina Museum of Natural Sciences, Raleigh, NC 27601, USA; cNegaunee Integrative Research Center, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, IL 60605, USA; dInstitut fur€ Biologie, Humboldt-Universitat€ zu Berlin, Invalidenstr. 42, D – 10115 Berlin, Germany; eDepartamento de Cs. Geologicas, FCEN, Universidad de Buenos Aires, C1428EHA Ciudad Autonoma de Buenos Aires, Argentina; fCONICET-UBA, Instituto de Estudios Andinos (IDEAN) Buenos Aires, Argentina; gEvolutionary Studies Institute, University of the Witwatersrand, Private Bag 3, 2050 Johannesburg, South Africa; hIziko South African Museum, PO Box 61, Cape Town, South Africa; iDepartment of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK (Received 19 August 2020; accepted 9 December 2020) A new parareptile from the Cisuralian Pedra de Fogo Formation of north-eastern Brazil is described. Karutia fortunata gen. et sp. nov. is the first Gondwanan member of Acleistorhinidae, a clade previously known only from North America but thought to be closely related to the Russian Lanthanosuchidae. A re-examination of parareptile phylogeny indicates that lanthanosuchids are not closely related to acleistorhinids. These results are more congruent both stratigraphically and biogeographically than the previous ‘lanthanosuchoid’ position for acleistorhinids, as they eliminate a 15 Ma ghost lineage within parareptiles, leaving Acleistorhinidae as an exclusively Pennsylvanian/Cisuralian clade from western Pangaea. Karutia fortunata contributes to our knowledge of the early Permian diversity of Parareptilia in Gondwana, a clade previously represented only by the mesosaurid inhabitants of the Irati-Whitehill epicontinental sea in the southern portion of the supercontinent. The new parareptile joins captorhinids in the amniote record of the Pedra de Fogo Formation, improving our picture of the inland tetrapod fauna of the southern hemisphere during the Cisuralian. http://zoobank.org/urn:lsid:zoobank.org:pub:79D59764-4DA0-4C28-B4D3-C517BBF64D81 Keywords: Reptilia; Parareptilia; Acleistorhinidae; Gondwana; Cisuralian; Pedra de Fogo Formation; Parnaıba Basin Introduction Benson 2020). Many parareptilian subclades are highly autapomorphic and the paucity of generalized taxa has Parareptilia is a reptile lineage that first appeared in the late complicated analyses of their relationships. Although Carboniferous (Modesto et al. 2015;Mannet al. 2019)and frequently recovered as the sister group of all other par- underwent major evolutionary radiations during both the areptiles (e.g. Modesto 2006), Mesosauridae consists of Permian and Triassic periods (Tsuji & Muller€ 2009;Ruta highly specialized aquatic forms that provide little et al. 2011; MacDougall et al. 2019a). This morphologically insight into the ancestral morphology of parareptiles. disparate group produced bauplans ranging from the small, Greater potential for understanding the plesiomorphic facultatively bipedal bolosaurs to the fully aquatic meso- condition in parareptiles comes from small, terrestrial saurs and the large, armoured pareiasaurs, and repeatedly and superficially ‘lizard-like’ Permo–Carboniferous taxa acquired dental adaptations for insectivory, low- and high- such as bolosaurs and acleistorhinids. Acleistorhinidae fibre herbivory, and durophagy (Reisz & Sues 2000;Reisz historically was a very poorly known group, originally 2006; Cabreira & Cisneros 2009). The fossil record of para- represented only by Acleistorhinus pteroticus Daly, reptiles is extensive, with much of their history character- 1969 from the lower Permian of Oklahoma, USA, which ized by an exceptionally high-quality record as reflected by was recognized as a basal parareptile in the 1990s mean specimen completeness (Verriere et al. 2016). (deBraga & Reisz 1996; Modesto 1999). Work in the The placement of parareptiles within Amniota has last two decades has greatly expanded our knowledge of been the subject of recent debate (Laurin & Pi~neiro Acleistorhinidae, revealing a number of new taxa from 2017, 2018; MacDougall et al. 2018, 2019b; Ford & North America. Most of these taxa are based on à Corresponding author. Email: [email protected] # The Trustees of the Natural History Museum, London 2021. All rights reserved. Published online 12 Jan 2021 2 J. C. Cisneros et al. discoveries at the Richards Spur site in Oklahoma, a reassessed based, as much as possible, on first-hand exam- locality that has demonstrated that parareptilian diversity ination of fossils and supported by the literature (see Table was comparable to that of Eureptilia during the Cisuralian 1 for specimens and references). The recently recognized (MacDougall et al. 2017). In addition to these Permian parareptile Carbonodraco lundi from the Pennsylvanian of finds, the acleistorhinid Carbonodraco lundi from the the USA was added to the matrix, with its scoring based middle Pennsylvanian of Ohio, USA, has recently been on the description of Mann et al.(2019). See the support- identified as the oldest known parareptile (Mann et al. ing information for the data matrix, new characters 2019). Members of the Acleistorhinidae are characterized included in the analysis, and alterations to previous charac- by cranial sculpturing, usually in the form of pits; size- ters and scorings. The character-taxon matrix was com- related heterodonty (frequently with plicidentine on the piled in Mesquite v. 3.2 (Maddison & Maddison 2018), enlarged teeth); and (ontogenetically and taxonomically) and the phylogenetic analysis was performed using TNT variable temporal openings (MacDougall & Reisz 2014; v. 1.5 (Goloboff & Catalano 2016). A traditional (heuris- MacDougall et al. 2014;Haridyet al. 2016). All acleisto- tic) search was carried out using tree bisection reconnec- rhinid species so far known have been found in North tion and saving 10 trees per replicate. All characters were America and are represented mainly by cranial material. unordered and unweighted, ambiguously supported The highly specialized mesosaurs, which inhabited the branches were collapsed (‘collapsing rule 1’)and saline (and in parts anoxic) Irati/Whitehill inland sea in Seymouria served as the outgroup taxon. Symmetric southern Gondwana (e.g. Pineiro~ et al. 2012), have long resampling (Goloboff et al. 2003) support values were cal- been the only parareptiles (and amniotes in general) culated from 5000 replicates. known from the lower Permian of the southern hemi- sphere. Recent research in the Pedra de Fogo Formation, near the city of Teresina within the Parnaıba Basin of Institutional abbreviations north-eastern Brazil, has revealed a new lower Permian BP, Evolutionary Studies Institute, University of the tetrapod fauna associated with an alkaline lacustrine/wet- Witwatersrand, Johannesburg, South Africa; FMNH, land system (Cisneros et al. 2015; Iannuzzi et al. 2018). Field Museum of Natural History, Chicago, USA; MAP, This tetrapod assemblage is dominated by temnospondyls, Museu de Arqueologia e Paleontologia, Universidade ı with amniotes being represented by at least two captorhi- Federal do Piau , Teresina, Brazil; OMNH, Sam Noble nid morphotypes, including the genus Captorhinikos, Oklahoma Museum of Natural History, Norman, USA; previously known only from the Cisuralian of North PIN, Borissiak Palaeontological Institute, Russian America (Cisneros et al. 2020). Collecting efforts in Academy of Sciences, Moscow, Russia; RC, Rubidge 2016 revealed a third amniote from this formation, repre- Collection, Wellwood, Eastern Cape, South Africa; SAM, sented by cranial and postcranial remains here identified Iziko South African Museum, Cape Town, South Africa. as the first Gondwanan acleistorhinid parareptile. Systematic palaeontology Material and methods Reptilia Laurenti, 1768 Parareptilia Olson, 1947 The specimen (Fig. 1) was discovered in a small sand- Acleistorhinidae Daly, 1969 stone slab in
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