Linderochelys rinconensis  (Testudines: Pan-Chelidae) from the Upper Cretaceous of northern Patagonia: New insights from shell bone histology, morphology and diagenetic implications

Jannello, Juan Marcos; Maniel, Ignacio; Previtera, Elena; Fuente, Marcelo S. de la

doi:10.1016/j.cretres.2017.05.011

Cited by 13 publications

(4 citation statements)

References 35 publications

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“…However, plastral plates of Phrynops are more vascularised than xiphiplastron of Cearachelys (Figure 7 and Table S1). On the other hand, plastral plates of Cretaceous chelid Linderochelys rinconensis and cryptodires (both extinct and extant) exhibit a slower growth rate, characterized by parallel‐fibered bone which suggests a more conservative pattern in shell osteohistology (Danilov, Obraztsova, Boitsova, & Skutschas, 2018; Jannello, Maniel, Previtera, & dela Fuente, 2018; Scheyer, Syromyatnikova, & Danilov, 2017; Scheyer & Sander, 2007; Skutschas et al, 2020; Skutschas, Boitsova, Cherepanov, & Danilov, 2017). An additional and unique aspect reported in C .…”

Section: Discussionmentioning

confidence: 99%

Osteohistology and microanatomy of a new specimen of Cearachelys placidoi (Testudines: Pleurodira) a side‐necked turtle from the lower Cretaceous of Brazil

Sena

Bantim

Saraiva

et al. 2020

The Anatomical Record

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Pelomedusoides had a recognised diverse Early Cretaceous fauna of turtles in Northeast Brazil. Within them, the bothremydid Cearachelys placidoi has a relatively abundant record. This diversity contrasts with the scarcity of osteohistological studies in this group. The relatively well-preserved shell of C. placidoi (UFRPE 5600), from the Aptian age of Araripe Basin, is studied here for the purpose of filling this gap. We performed the osteohistological description of the plastron of a new specimen of C. placidoi. Also, to conduct a comparative study, we carried out histological sections in bones of the recent chelid Phrynops sp. Our histological findings indicate similarities between the histological pattern of freshwater turtles and the coastal marine C. placidoi. Moreover, osteohistological features imply metaplastic incorporation of dermal interwoven structural fiber bundles. Lastly, the xiphiplastron of C. placidoi shows an increase of bone compactness over its craniocaudal axis. This microanatomical feature is exclusive to Cearachelys so far.

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Section: Discussionmentioning

confidence: 99%

Osteohistology and microanatomy of a new specimen of Cearachelys placidoi (Testudines: Pleurodira) a side‐necked turtle from the lower Cretaceous of Brazil

Sena

Bantim

Saraiva

et al. 2020

The Anatomical Record

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“…Linderochelys rinconcensis ; Jannello et al . 2018) or cancellous bone (e.g. Archelon ischyros ; Scheyer & Sánchez‐Villagra 2007), the plates in Testudinata are always formed by two layers of compact bone that frame an internal area of cancellous bone (Scheyer & Sánchez‐Villagra 2007; Scheyer 2009; Delfino et al .…”

Section: Discussionmentioning

confidence: 99%

Appearances can be deceptive: bizarre shell microanatomy and histology in a new Triassic turtle (Testudinata) from Argentina at the dawn of turtles

Sterli

Martínez

Cerda

et al. 2020

Papers in Palaeontology

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F I G . 1 . Location and geology of the Marayes-El Carrizal Basin. A, geological map of the Marayes-El Carrizal Basin. B, stratigraphic section of the upper levels of the Quebrada del Barro Formation at the 'Quebrada del puma' locality, type locality of Waluchelys cavitesta gen. et sp. nov. Black circles indicate the fossil sites located close to the top of the Quebrada del Barro Formation. Modified from Mart ınez et al. (2015).

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“…From the Early Cretaceous until the mid-Eocene, chelid and meiolaniform turtles dominated the continental cheloniofauna in today's Chubut Province. Extant chelids are freshwater turtles and the same habit is suggested for their extinct representatives (e.g., Jannello et al, 2016Jannello et al, , 2018Jannello et al, , 2020Maniel et al, 2018).…”

Section: Patagonian Climate and Biomes During The Last 200 Mamentioning

confidence: 94%

Contribución a La Diversidad Del Registro Fósil De Tortugas (Testudinata) De La Provincia De Chubut (Argentina) Y Su Significado en La Comprensión De La Evolución De Las Tortugas en El Sur De Sudamérica

Sterli

Vlachos

Krause

et al. 2021

PEAPA

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In this work we focus on the fossil record of turtles and tortoises from the Chubut Province, in Patagonia, Argentina. This record is the richest, most diverse, the longest and continuous in the country and one of the most important in the continent. In this work, we present and study new fossils from all known clades of turtles from the province, coming from targeted field campaigns, as well as from past investigations, placed in a comprehensive and detailed chronostratigraphic context. In Chubut, more than 241 occurrences of turtles from at least 223 collection points are known, spanning from the Toarcian (Jurassic) to the Tortonian (Miocene). we manage to fill some of the gaps in the fossil record, complete the anatomical knowledge of many taxa, explore new geographical areas, and present some important highlights. Among these, the record of the oldest pan-chelid turtles indicates the significant potential of the sedimentary deposits of Chubut. Furthermore, we discuss the changes in the diversity and faunal turnovers of the various turtle clades in this region during the last 180 Ma and across important events during the Cretaceous/Paleocene and Oligocene/Miocene boundaries.

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Linderochelys rinconensis (Testudines: Pan-Chelidae) from the Upper Cretaceous of northern Patagonia: New insights from shell bone histology, morphology and diagenetic implications

Cited by 13 publications

References 35 publications

Osteohistology and microanatomy of a new specimen of Cearachelys placidoi (Testudines: Pleurodira) a side‐necked turtle from the lower Cretaceous of Brazil

Osteohistology and microanatomy of a new specimen of Cearachelys placidoi (Testudines: Pleurodira) a side‐necked turtle from the lower Cretaceous of Brazil

Appearances can be deceptive: bizarre shell microanatomy and histology in a new Triassic turtle (Testudinata) from Argentina at the dawn of turtles

Contribución a La Diversidad Del Registro Fósil De Tortugas (Testudinata) De La Provincia De Chubut (Argentina) Y Su Significado en La Comprensión De La Evolución De Las Tortugas en El Sur De Sudamérica

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