PBDB Collection

Laje do Coringa, Ilha do Cajual (Cretaceous of Brazil)

Where: Maranhão, Brazil (2.5° S, 44.5° W: paleocoordinates 9.4° S, 19.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Alcântara Formation (Itapecuru Group), Cenomanian (100.5 - 93.9 Ma)

• São Luís-Grajaú Basin; some reworking possible; Albian-Cenomanian age is based upon palynology

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; fine-grained, quartzose sandstone and conglomerate

• "sandstone and rhythmic sandstone/mudstone facies, intercalated with conglomerate levels"

Size classes: macrofossils, mesofossils

Collected by M. A. Medeiros in 1994–present

Collection methods: surface (float), surface (in situ), mechanical,

Primary reference: M. A. Medeiros and I. Villas Bôas. 1999. Occorência de uma paleocomunidade continental do Cenomaniano (Cretáceo Superior) do nordeste do Brasil [Occurence of a continental paleocommunity from the Cenomanian (Upper Cretaceous) of northeastern Brazil]. XV Jornadas Argentinas de Paleontología de Vertebrados, Resúmenes. Ameghiniana 36(4 (suppl.)):15R [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56365: authorized by Matthew Carrano, entered by Matthew Carrano on 17.11.2005, edited by Mark Uhen, Roger Benson, Jonathan Tennant, Richard Butler and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Coelacanthimorpha
Coelacanthiformes - Mawsoniidae	Mawsonia sp. Mawsonia sp. Mawson and Woodward 1907 coelacanth BR29-32
Osteichthyes
Dipnoi - Ceratodontidae	"Protopterus humei" = Ceratodus humei¹³ "Protopterus humei" = Ceratodus humei¹³ Priem 1914 lungfish
Dipnomorpha -	Ceratodontiformes indet.¹ Ceratodontiformes indet.¹ Berg 1940 Australian lungfish BR27-28
Ceratodontiformes - Neoceratodontidae	Asiatoceratodus tiguidiensis¹³, Neoceratodus africanus¹⁴ Asiatoceratodus tiguidiensis¹³ Australian lungfish Neoceratodus africanus¹⁴ Haug 1905 Queensland lungfish
Reptilia
Squamata - Mosasauridae	? Mosasauridae indet.⁸ ? Mosasauridae indet.⁸ Gervais 1852 mosasaur "should be regarded with caution"
Plesiosauria -	? Plesiosauria indet.⁸ ? Plesiosauria indet.⁸ plesiosaur "should be regarded with caution"
Loricata -	Crocodyliformes indet.⁵, Coringasuchus anisodontis n. gen. n. sp.⁸ Crocodyliformes indet.⁵ crocodilian BR24-26 Coringasuchus anisodontis n. gen. n. sp.⁸ Kellner et al. 2009 crocodilian MN 7128-V
Theropoda -	Theropoda indet.¹³ Theropoda indet.¹³ Marsh 1881 theropod teeth; UFMA 1.20.186, 239, 498, 500, 503, 525, 528, 533, 548, 553
Theropoda - Noasauridae	Noasauridae indet.¹⁰ Noasauridae indet.¹⁰ Bonaparte and Powell 1980 ceratosaur UFMA 1.20.554 (a-i): nine isolated 'Masiakasaurus-like' teeth
Theropoda - Spinosauridae	Spinosauridae indet.¹², Spinosauridae indet.⁴, "Oxalaia quilombensis n. gen. n. sp." = Spinosaurus aegyptiacus⁷, Sigilmassasaurus sp.¹⁴ Spinosauridae indet.¹² Stromer 1915 tetanuran theropod tooth morphotype 2 Spinosauridae indet.⁴ Stromer 1915 tetanuran theropod teeth, incl/ UFMA 1.020.070 "Oxalaia quilombensis n. gen. n. sp." = Spinosaurus aegyptiacus⁷ Stromer 1915 tetanuran theropod tooth morphotype 1 Sigilmassasaurus sp.¹⁴ Russell 1996 tetanuran theropod distal caudal centra, UFMA 1.10.240, 1.10.229
Theropoda - Carcharodontosauridae	Carcharodontosauridae indet.¹⁶, Carcharodontosauridae indet.³, cf. Carcharodontosaurus sp.¹ Carcharodontosauridae indet.¹⁶ Stromer 1931 allosauroid mid-caudal centrum, UFMA 1.10.284 Carcharodontosauridae indet.³ Stromer 1931 allosauroid teeth, incl. UFRJ 22 Rd, 23 Rd; UFMA 1.10.049, 246, 1.20.029 cf. Carcharodontosaurus sp.¹ Stromer 1931 allosauroid BR13, 14, 15
Saurischia -	Sauropoda indet.², Titanosauriformes indet.¹¹, Titanosauria indet.⁹, Titanosauria indet.¹⁶ Sauropoda indet.² Marsh 1878 sauropod also "Astrodon?"; mid-distal caudal, UFMA 1.10.286 Titanosauriformes indet.¹¹ Salgado et al. 1997 sauropod mid-distal caudal, UFMA 1.10.246; caudal centrum, UFMA 1.10.049 Titanosauria indet.⁹ Bonaparte and Coria 1993 sauropod UFMA 1.10.1958, single osteoderm Titanosauria indet.¹⁶ Bonaparte and Coria 1993 sauropod dorsal centrum, UFMA 1.10.176; anterior-mid caudal centrum, UFMA 1.10.174
Saurischia - Rebbachisauridae	cf. Limaysaurus tessonei¹⁶ cf. Limaysaurus tessonei¹⁶ Calvo and Salgado 1995 Limay lizard UFMA 1.10.168, 188, 806, 015, 283, 170, 306, 728, 983, 1040, 1530, 169, 1802, 951, 990, 1252, 198
Pterosauria - Anhangueridae	Anhangueridae indet.⁶ Anhangueridae indet.⁶ pterosaur UFMA 1.20.178-1, UFMA 1.20.166, UFMA 1.20.130, UFMA 1.20.1744, URC R.77-1, URC R.77-2, URC R.77-3, URC R.77-4, URC R.77-5, teeth (four morphotypes)
Actinopteri
Lepisosteiformes -	Lepidotes sp. Lepidotes sp. Agassiz 1832 gar
Tetraodontiformes - Eotrigonodontidae	Stephanodus sp.¹³, Eotrigonodon sp.¹³ Stephanodus sp.¹³ Zittel 1883 Eotrigonodon sp.¹³ Weiler 1929
Tetraodontiformes -	Atlanticopristis equatorialis n. gen. n. sp.¹⁵ Atlanticopristis equatorialis n. gen. n. sp.¹⁵ Pereira and Medeiros 2008
Neopterygii -	Pycnodontiformes indet.¹³ Pycnodontiformes indet.¹³ Berg 1937
Chondrichthyes
Rajiformes - Sclerorhynchidae	Onchopristis sp.¹³ Onchopristis sp.¹³ Stromer 1917 ray
Hybodontiformes -	Hybodontiformes indet.¹⁴ Hybodontiformes indet.¹⁴ elasmobranch
Hybodontiformes - Hybodontidae	aff. Tribodus sp.¹³ aff. Tribodus sp.¹³ Brito and Ferreira 1989 elasmobranch

Coniferales -	Coniferales indet.¹⁴ Coniferales indet.¹⁴
Paradoxopteris
-	Paradoxopteris sanctiluigi¹³ Paradoxopteris sanctiluigi¹³
Polypodiopsida
Equisetales - Equisetidae	Equisetales indet.¹⁴ Equisetales indet.¹⁴ Dumortier 1829
- Osmundaceae	Osmundaceae indet.¹⁴ Osmundaceae indet.¹⁴ Berchtold and Presl
Bartschichthys
-	Bartschichthys sp.¹³ Bartschichthys sp.¹³ Gayet and Meunier 1996

¹Amiot et al. 2010; ²Candeiro et al. 2011; ³Candeiro and Martinelli 2005; ⁴Carrano et al. 2012; ⁵Cidade et al. 2019; ⁶Elias et al. 2007; ⁷Kellner et al. 2011; ⁸Kellner et al. 2009; ⁹Lindoso et al. 2013; ¹⁰Lindoso et al. 2012; ¹¹Mannion and Calvo 2011; ¹²Medeiros 2006; ¹³Medeiros et al. 2007; ¹⁴Medeiros and Schultz 2002; ¹⁵Pereira and Medeiros 2008; ¹⁶Ribeiro et al. 2023