Guimarota (Jurassic of Portugal)

Where: Leiria, Portugal (39.7° N, 8.8° W: paleocoordinates 33.7° N, 1.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Alcobaça Formation, Kimmeridgian (157.3 - 152.1 Ma)

• two lignite coal layers wth vertebrate fossils. Dated as Oxfordian based on microflora, Kimmeridgian based on ostracods. Recent work (Schudack 1993) favors Kimmeridgian.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal; coal

• The dominant plants (Schizoneura (?) and Equisetum) "are assumed to have lived in a shallow lagoon of fresh to brackish water, whereas the other elements may have drifted in from a nearby coast"
• "marly lignite coals"

Size classes: macrofossils, mesofossils, microfossils

Preservation: mold/impression

Collection methods: surface (in situ), mechanical,

Primary reference: C. Brauckmann. 1978. Beitrag zur Flora der Grube Guimarota (Ober-Jura; Mittel-Portugal). Geologica et Palaeontologica 12:213-222 [A. Rees/A. Rees/A. Rees]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24563: authorized by Allister Rees, entered by Allister Rees on 09.08.2002, edited by Meg Hall, Matthew Carrano, Kaitlin Maguire, Roger Benson, Philip Mannion, Oliver Rauhut and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pinidae - Pinidae
Brachyphyllum sp. Brongniart 1828
 Equisetales - Equisetidae
? Schizoneura sp. Schimper and Mougeot 1844
 Caytoniales - Caytoniaceae
? Caytonia sp. Thomas 1925
 Ginkgoales - Ginkgoaceae
Ginkgo sp. Linnaeus 1771 ginkgo
 Bennettitales -
 Charales - Porocharaceae
 Foraminifera -
Foraminifera indet.30 foram
"3 genera"
 Autobranchia -
"Lamellibranchia indet." = Autobranchia30
"Lamellibranchia indet." = Autobranchia30 Groblen 1894 clam
"5 genera"
Gastropoda indet.30 Cuvier 1795 snail
"8 genera"
 Podocopida - Limnocytheridae
 Podocopida - Cyprididae
 Podocopida - Darwinulidae
Darwinula sp.30 Brady and Robertson 1885 ostracod
 Hybodontiformes - Acrodontidae
Acrodus sp.30 Agassiz 1834 elasmobranch
Asteracanthus sp.30 Agassiz 1836 elasmobranch
 Holostei -
Holostei indet.30
"3 other genera" (1 prob. now Amiidae indet.)
 Lepisosteiformes -
Lepidotes sp.30 Agassiz 1832 gar
 Amiiformes - Amiidae
Amiidae indet.17 Huxley 1861 bowfin
 Temnospondyli - Albanerpetontidae
Celtedens sp.4 McGowan and Evans 1995 tetrapod
disarticulated material
 Salientia -
 Caudata - Urodela
Urodela indet.30 salamander
 Docodonta - Docodontidae
Haldanodon exspectatus n. sp.18 Kühne and Krusat 1972 dodocont
Numerous specimens (SGP series)
 Theriamorpha -
Nanolestes drescherae n. gen. n. sp.21
Nanolestes drescherae n. gen. n. sp.21 Martin 2002 mammal
The holotype (Gui Mamm 1002) and the following specimens: lower teeth (molars if not otherwise indicated): Gui Mam 1000 (left); 1001 (left); 1003 (left); 1004 (left); 1005 (dp?2-3, left); 1006 (right); 1007 (sectioned for enamel analysis); 1008 (left); 1009 (left); 1010 (left); 1011 (left); 1012 (right); 1013 (dp?3- 5, right); 1014 (left); 1015/1 (right) and 1015/2 (right), most probably from the same individual; 1016 (right); 1017 (right); 1018 (right); 1019 (dp?3-5, right); 1020 (right); 1021 (left); 1022 (left); 1040 (left); anterior dentary fragment with p3-5, broken roots of p2 and alveoli for il-4, c, and pl (Gui Mam 66/79); right dentary with p2 and alveoli for il-4, p1-5, and ml-5 (Guimarota 19; "cf. Peramus" of Ktihne, 1968a); upper teeth (molars if not otherwise indicated): Gui Mam 1023/1 (P4 or 5, left), 1023/2 (left), 1023/3 (left), most probably from the same individual; 1024 (left); 1025 (left); 1026 (left); 1027 (DP? 3-5, left); 1029 (left); 1030 (left); 1031 (right); 1032 (right); 1033 (right); 1034 (DP? 3-5, right); 1035 (right); 1036 (left); 1037 (right); 1038 (right); 1039 (DP? 3-5, right, double-rooted, roots broken, tooth was not shed); 1041 (left); left maxilla fragment consisting of two maxillary fragments and five isolated teeth (C, P1-P4) and a possible molar fragment (Gui Mam 176/ 75).
 Theriamorpha - Dryolestidae
Dryolestidae indet.15 Marsh 1879 mammal
Krebsotherium lusitanicum n. gen. n. sp.20 Martin 1999 mammal
IPFUB Gui Mam 9/75 (holotype left mandible) plus 78 other specimens
Henkelotherium guimarotae27 Krebs 1991 mammal
Dryolestes leirensis n. sp.20 Martin 1999 mammal
Gui Mam 130/74 (holotype left mandible) plus 81 other specimens. Includes Butterigale sp. of Kuhne 1968
Dryolestes cf. leirensis20 Martin 1999 mammal
Guimarotodus inflatus n. gen. n. sp.20 Martin 1999 mammal
IPFUB Gui Mam 121/75 (holotype right mandible) plus ten other specimens
 Theriamorpha - Paurodontidae
Paurodontidae indet.15 Marsh 1887 mammal
Drescheratherium acutum n. gen. n. sp.16 Krebs 1998 mammal
IPFUB Gui Mam 4/73 (holotype maxilla), 34/A6, 70/74, 1/76
 Multituberculata - Albionbaataridae
Proalbionbaatar plagiocyrtus n. gen. n. sp.11 Hahn and Hahn 1998 multituberculate
IPFUB pl(m1)-1-2 (holotype right m1 and paratype left m1)
 Multituberculata - Paulchoffatiidae
Paulchoffatiidae "gen. A"10 Hahn 1969 multituberculate
V.J. 385-155 and IPFUB A(m2)-1-5 (five m2 teeth)
Paulchoffatiidae "gen. B"10 Hahn 1969 multituberculate
IPFUB B(m2)-1-2 (two m2 teeth)
Paulchoffatiidae "gen. C"10 Hahn 1969 multituberculate
IPFUB c(m2)-1 (one m2 tooth)
Paulchoffatiidae "gen. D sp. 1"10 Hahn 1969 multituberculate
V.J. 163-155 (a left m2), IPFUB D1(m2)-1-5 (five m2 teeth)
Paulchoffatiidae "gen. D sp. 2"10 Hahn 1969 multituberculate
IPFUB F2(m2)-1-5 (five m2 teeth)
Paulchoffatiidae "gen. D sp. 3"10 Hahn 1969 multituberculate
V.J. 381-155 (left m2 tooth), 3880155 (right m2 tooth), 389-155 (right m2 tooth); IPFUB D3(m2)-1-12 (twelve m2 teeth)
Paulchoffatiidae "gen. D sp. 4"10 Hahn 1969 multituberculate
IPFUB D4(m2)-1-10 (ten m2 teeth)
Meketichoffatia sp.10 Hahn 1993 multituberculate
IPFUB M(m1)-1 (an m1 tooth)
Meketichoffatia krausei n. gen. n. sp.6 Hahn 1993 multituberculate
V.J. 110-155 (holotype skull), 443-155, 444-155, 445-155, 446-155 (skulls); plus an m1 referred by Hahn (1998) (IPFUB M(m1)-1)
Meketichoffatia ? krausei10 Hahn 1993 multituberculate
V.J. 390-155-395-135 (6 x m1 referred to Paulchoffatia sp. by Hahn (1969))
Kuehneodon sp. n. sp.5 Hahn 1969 multituberculate
Kuehneodon simpsoni6 Hahn 1969 multituberculate
V.J. 122-155 (holotype skull)
Kuehneodon uniradiculatus n. sp.6 Hahn 1978 multituberculate
V.J. 427-155 (holotype mandible), 428-155, 429-155, 431-155, 442-155 (mandibles)
Kuehneodon dietrichi n. gen. n. sp.6 Hahn 1969 multituberculate
V.J. 4-155 (holotype mandible), 410-155 to 425-155, 429-155, 439-155, 441-155 (mandibles)
Kuehneodon guimarotensis n. sp.6 Hahn 1969 multituberculate
V.J. 5-155 (holotype mandible), 6-155, 11-155(questionably), 440-155 (mandibles)
Bathmochoffatia hapax n. gen. n. sp.10 Hahn and Hahn 1998 multituberculate
IPFUB ha (m1)-1
Meketibolodon robustus9 Hahn 1978 multituberculate
V.J. 408-155 (holotype mandible), 407-155, 409-155, 430-155 (mandibles)
"Kuehneodon dryas n. sp." = Pseudobolodon dryas5 Hahn 1977 multituberculate
Pseudobolodon oreas n. gen. n. sp.5 Hahn 1977 multituberculate
Pseudobolodon oreas7 Hahn 1977 multituberculate
Pseudobolodon krebsi n. sp.8 Hahn and Hahn 1994 multituberculate
V.J. 447-155 (holotype skull fragments), plus 451-155, 357-155
"Parachoffatia peperethos n. sp." = Plesiochoffatia10 multituberculate
IPFUB pe(m2)-1 (holotype right m2)
Parachoffatia staphylos n. sp.10 Hahn and Hahn 1998 multituberculate
IPFUB st(m2)-1 (holotype left m2)
"Parachoffatia thoas n. gen. n. sp." = Plesiochoffatia thoas10 Hahn and Hahn 1998 multituberculate
IPFUB th(m2)-1 (holotype left m2), -2-3 (paratype right m2s)
Xenachoffatia oinopion n. gen. n. sp.10 Hahn and Hahn 1998 multituberculate
IPFUB oi(m2)-1 (holotype left m2), -2-3 (paratype right m2s)
Kielanodon hopsoni n. gen. n. sp.6 Hahn 1987 multituberculate
V.J. 463-155 (holotype right maxilla), 464-155 (right maxilla); plus a right p3 reported by Hahn & Hahn (1998) V.J. 382-155
Renatodon amalthea n. gen. n. sp.7 Hahn 2001 multituberculate
V.J. 457-155 (holotype right maxilla), 452-155 (paratype)
Guimarotodon leiriensis n. gen. n. sp.6 Hahn 1969 multituberculate
V.J. 396-155 (holotype mandible), 461-155, 462-155 (mandibles)
Henkelodon sp.10 Hahn 1977 multituberculate
IPFUB H(m1)-6 (an m1 tooth)
Henkelodon naias n. gen. n. sp.5 Hahn 1977 multituberculate
Paulchoffatia delgadoi n. gen. n. sp.6 Kuhne 1961 multituberculate
V.J. 1-155 (holotype mandible), 2-155, 3-155, 402-155, 403-155 (mandibles); plus specimens referred by Hahn (1998): V.J. 95-155, 96-155, IPFUB de(m2)-1, de(m2)-2 (total of four m2 teeth)
 Squamata - Dorsetisauridae
"Introrsisaurus pollicidens n. gen. n. sp." = Dorsetisaurus purbeckensis29
"Introrsisaurus pollicidens n. gen. n. sp." = Dorsetisaurus purbeckensis29 Hoffstetter 1967 squamates
 Squamata -
Portugalophis lignites n. gen. n. sp.2
Portugalophis lignites n. gen. n. sp.2 Caldwell et al. 2015 snake
 Squamata - Paramacellodidae
"Saurillus proraformis n. sp." = Saurillodon proraformis29, Saurillus henkeli n. sp.29, Saurillus cf. obtusus29, "Becklesisaurus hoffstetteri n. sp." = Becklesius hoffstetteri29
"Saurillus proraformis n. sp." = Saurillodon proraformis29 Estes 1983 squamates
Saurillus henkeli n. sp.29 Seiffert 1975 squamates
Saurillus cf. obtusus29 Owen 1855 squamates
"Becklesisaurus hoffstetteri n. sp." = Becklesius hoffstetteri29 Seiffert 1975 squamates
FUB Gui.A56
 Pterosauria - Rhamphorhynchidae
Rhamphorhynchus sp.30 Meyer 1847 pterosaur
 Pterosauria -
Pterodactylus sp.30 Cuvier 1809 pterosaur
 Saurischia -
Titanosauriformes indet.19 Salgado et al. 1997 sauropod
IPFUB Gui Sd 1–5 (five teeth)
 Theropoda -
Tetanurae indet.22 Gauthier 1986 tetanuran theropod
 Theropoda - Compsognathidae
Compsognathus sp.22 Wagner 1861 elegant jaw
 Theropoda -
Aviatyrannis jurassica n. gen. n. sp.24 Rauhut 2003 ornithomimosaur
Aviatyrannis jurassica24 Rauhut 2003 ornithomimosaur
 Theropoda - Troodontidae
Troodontidae indet.31 Gilmore 1924 maniraptoran
 Theropoda - Dromaeosauridae
Dromaeosauridae indet.22 Colbert and Russell 1969 maniraptoran
Velociraptorinae indet.31 Barsbold 1983 maniraptoran
cf. Richardoestesia sp.31 Currie et al. 1990 maniraptoran
 Theropoda -
cf. Paronychodon sp.32 Cope 1876 maniraptoran
 Archaeopterygiformes -
Archaeopterygiformes indet.22 Furbringer 1888 bird
 Theropoda -
Allosaurus sp.25 Marsh 1877 allosauroid
hatchling maxilla; IPFUB Gui Th 4
cf. Ceratosaurus sp.22 Marsh 1884 ceratosaur
 Ornithischia -
Phyllodon henkeli n. gen. n. sp.30 Thulborn 1975 ornithopod
Iguanodontia indet.23 ornithopod
 Loricata - Atoposauridae
"Theriosuchus guimarotae n. sp." = Knoetschkesuchus guimarotae28
"Theriosuchus guimarotae n. sp." = Knoetschkesuchus guimarotae28 Schwarz and Salisbury 2005 crocodilian
IPFUB Gui Croc 7308
 Loricata - Goniopholididae
Goniopholis baryglyphaeus n. sp.26, "Macellodus cf. brodiei" = Goniopholis brodiei29
Goniopholis baryglyphaeus n. sp.26 Schwarz 2002 crocodilian
IPFUB Gui Croc 1, holotype: an articulated partial skeleton, including a nearly complete dorso-ventrally ¯attened skull with major portions of the lower jaw; four cervical vertebrae, six thoracic vertebrae, one sacral vertebra and three caudal vertebrae; the right and left coracoids, the left ischium and portions of the right femur, tibia and ®bula, a metacarpal, and several dorsal and ventral osteoderms
"Macellodus cf. brodiei" = Goniopholis brodiei29 Owen 1854 crocodilian
 Loricata -
Lisboasaurus estesi n. gen. n. sp.29 Seiffert 1975 crocodilian
FUB Giu 37, near-complete right maxilla with one tooth; plus FUB field batch number Jun 18:13:1
Lisboasaurus mitracostatus n. sp.29 Seiffert 1975 crocodilian
Machimosaurus hugii14 Meyer 1837 marine crocodile
Fragments of the snout, part of the frontal, the left postorbital, the pterygoids left and the occiput, also two dorsal vertebrae, two sacral vertebrae, a tail vertebrae, ribs, left fibula, and some armor plates; found in 1961
 Eosuchia -
Marmoretta sp.3 Evans 1991 crown diapsid
 Choristodera - Cteniogenyidae
"Cteniogenys reedi n. sp." = Cteniogenys antiquus29
"Cteniogenys reedi n. sp." = Cteniogenys antiquus29 Gilmore 1928 choristodere
 Testudinata - Compsemydidae
"Peltochelys duchastelli" = Peltochelys duchastelii13
"Peltochelys duchastelli" = Peltochelys duchastelii13 Dollo 1885 turtle
 Testudinata - Pleurosternidae
Pleurosternidae indet.12 Cope 1868 turtle
 Testudinata - Plesiochelyidae
Plesiochelyidae indet.1 Rütimeyer 1873 turtle
 Testudines -
"Chelonia indet." = Testudines1
"Chelonia indet." = Testudines1 Batsch 1788 turtle
 Testudines - Platychelyidae
Platychelys sp.13 Wagner 1853 turtle