PBDB Collection

Calcaires à Stipites Causses Basin (Jurassic of France)

Where: France (44.2° N, 3.2° E: paleocoordinates 34.1° N, 13.7° E)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Calcaires à Stipites Formation, Middle Bathonian (167.7 - 164.7 Ma)

• The Calcaires à stipites is located underneath the Dolomies ruiniformes layer and above a regional unconformities which lies atop of shallow water marine limestones

• formation-level stratigraphic resolution

Environment/lithology: lacustrine; calcareous lignite and calcareous claystone

• The lignite-bearing unit is made up of thin depositional cycles whose thickness may reach ten metres or so, but usually is much less, sometimes only several decimetres. The thinnest sequences are composed of a transgressive lignite overlain by subaerial palustrine limestones bioturbated by roots.

• The limestone beds between the lignite layers are either shallow to marginal marine, lacustrine or palustrine. Lignite beds and associated clays have preserved freshwater flora.

Size classes: macrofossils, microfossils

Preservation: mold/impression, original carbon, original sporopollenin

Collection methods: bulk, chemical, mechanical,

Primary reference: M. Philippe, F. Thevenard, G. Barale, S. Ferry, and G. Guignard. 1998. Middle Bathonian floras and phytocoenoses of France. Palaeogeography, Palaeoclimatology, Palaeoecology 143:135-158 [C. Looy/F. Verbruggen/F. Verbruggen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 31317: authorized by Cindy Looy, entered by Frederike Verbruggen on 07.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• The palynological data from the Causses Basin is studied twice (Causses 1 and Causses 2). Once (Causses 1) by Doubinger (1961) and once by Alabouvette (1988) (Causses 2).

•

•The megaflora data comes partly from Saporta (1873 and 1891), Maubeuge (1949), Gérard (1936), Nickles (1907), Lemoigne (1968) and new data by authors.

Show authors, comments, and common names

unclassified
-	Abietinaepollenites microalatus, Crassopollis torosus, Cryptomeriapollenites sp., Excesipollenites sp., Vitreiporites pallidus, Cyathiidites australis, Cyathiidites minor, Densoispora perinatus, Ischiosporites variegatus, Lycopodiumcidites cerniidites Abietinaepollenites microalatus Potonié (only found in Causses 1) Crassopollis torosus (Reissinger) Couper et C. sp. (found in Causses 1 and 2) Cryptomeriapollenites sp. (found in Causses 1) Excesipollenites sp. (found in Causses 2) Vitreiporites pallidus (Reissinger) Nilsson (found in Causses 1 and 2) Cyathiidites australis Couper (found in Causses 1) Cyathiidites minor Couper (found in Causses 1) Densoispora perinatus Couper (found in Causses 1) Ischiosporites variegatus (Couper) Schulz (found in Causses 1 and 2) Lycopodiumcidites cerniidites (Ross) Delc. et Sprum. (found in Causses 1)
Equisetopsida
Pinidae - Pinidae	Brachyphyllum crucis, Brachyphyllum cf. trautii, Araucariacites australis, Agathoxylon desnoyersii, Pagiophyllum araucarinum, Pagiophyllum maculosum Brachyphyllum crucis part of megaflora; most frequently observed conifer. (described by Philippe et al.) Brachyphyllum cf. trautii part of megaflora (described by Philippe et al.) Araucariacites australis Cookson 1947 Cookson (found in Causses 1) Agathoxylon desnoyersii part of megaflora (described by Lemoigne (1968) as Brachyphyllum desnoyersii, but according to Philippe et al. this belongs to Agathoxylon desnoyersii) Pagiophyllum araucarinum part of megaflora (described by Philippe et al.) Pagiophyllum maculosum part of megaflora (described by Philippe et al.)
Cupressales - Pinidae	"Spheripollenites subgranulatus" = Sphaeripollenites, "Spheripollenites scabratus" = Sphaeripollenites "Spheripollenites subgranulatus" = Sphaeripollenites Couper (found in Causses 1) "Spheripollenites scabratus" = Sphaeripollenites Couper (found in Causses 1)
Perinopollenites elatoides
-	Perinopollenites elatoides Perinopollenites elatoides Couper 1958 Couper (found in Causses 1)
Alisporites
-	Alisporites microsaccus Alisporites microsaccus (Couper) Pocock (only found in Causses 1)
Cerebropollenites mesozoicus
-	Cerebropollenites mesozoicus Cerebropollenites mesozoicus Nilsson 1958 Nilsson (only found in Causses 1)
Prototaxodioxylon
-	Prototaxodioxylon sp. Prototaxodioxylon sp. Vogellehner 1968 part of megaflora (described by Philippe et al.)
Sphenopsida
-	Calamospora mesozoica Calamospora mesozoica Couper 1958 Couper (found in Causses 1)
Cycadopsida
Cycadales -	Eucommiidites troedsonnii Eucommiidites troedsonnii cycads Erdtmann (found in Causses 1 and 2)
Cycadales - Cycadaceae	Sphenozamites sp. Sphenozamites sp. Brongniart 1849 cycads part of megaflora (described by unknown authors)
Protopodocarpoxylon
-	Protopodocarpoxylon cf. araucarioides Protopodocarpoxylon cf. araucarioides part of megaflora (described by Philippe et al.)
Angiospermae
-	Monosulcites carpentieri, Monosulcites minimus Monosulcites carpentieri Delc. and Sprum. (found in Causses 1 and 2) Monosulcites minimus Cookson 1947 Cookson (found in Causses 1 and 2)

Bennettitales -	Otozamites sp. Otozamites sp. Braun 1843 part of megaflora (described by unknown authors)
Coniferales - Brachyphyllaceae	Brachyoxylon sp. Brachyoxylon sp. Hollick and Jeffrey 1909 part of megaflora (described by Philippe et al.)
Coniferales - Podocarpaceae	Callialasporites dampieri, Callialasporites trilobatus Callialasporites dampieri Balme 1957 podocarp (Balme) Sukh-Dev (found in Causses 1) Callialasporites trilobatus Balme 1957 podocarp (Balme) Sukh-Dev (found in Causses 1 and 2)
Pinopsida
Pinales - Taxaceae	Elatides williamsonii Elatides williamsonii yew part of megaflora (described by Philippe et al.)
Lycopodiopsida
Lycopodiales - Lycopodiaceae	Lycopodites indet., Lycopodiumsporites gristhorpensis Lycopodites indet. Brongniart 1822 clubmoss part of megaflora (described by Gérard, 1936) Lycopodiumsporites gristhorpensis clubmoss Couper (found in Causses 1)
Staplinisporites
-	Staplinisporites pseudoalveolatus Staplinisporites pseudoalveolatus (Couper) (found in Causses 1)
Polypodiopsida
- Dicksoniaceae	Trilites bossus Trilites bossus Couper (found in Causses 1)
- Blechnaceae	Leptolepidites major Leptolepidites major Couper 1953 Couper (found in Causses 1)
- Gleicheniaceae	Gleicheniidites senonicus Gleicheniidites senonicus Ross 1949 Ross (found in Causses 1)
Gleicheniales - Polypodiidae	Dictyophyllidites harrisii, Phlebopteris dunkeri, Phlebopteris sp., Phlebopteris polypodioides Dictyophyllidites harrisii Couper 1958 Couper (found in Causses 2) Phlebopteris dunkeri part of megaflora (Saporta 1873 described sterile and fertile pinnules of Microdictyon rutenicum, according to Philippe et al. this belongs to Phlebopteris dunkeri) Phlebopteris sp. Brongniart 1836 part of megaflora (described by Saporta (1891) as Laccopteris fabrei and Microdictyon woodwardianum, but according to Philippe et al. this belongs to Phlebopteris sp.) Phlebopteris polypodioides Brongniart 1836 part of megaflora (described by Maubeuge 1949)
Equisetales - Equisetidae	Equisetum duvalli Equisetum duvalli horsetail part of megaflora (described by Philippe et al.)
Pteridopsida
-	Matonisporites phlebopteroides, Matonisporites equiexinus, Monolites sp., Marattisporites scabratus, Todisporites major, Todisporites minor, Osmundacidites wellmanii Matonisporites phlebopteroides Couper 1958 Couper (found in Causses 1) Matonisporites equiexinus Couper 1958 Couper (found in Causses 1) Monolites sp. Cookson and Potonié 1956 (found in Causses 1) Marattisporites scabratus Couper 1958 Couper (found in Causses 1 and 2) Todisporites major Couper 1953 Couper (found in Causses 1) Todisporites minor Couper 1953 Couper (found in Causses 1) Osmundacidites wellmanii Couper 1953 Couper (found in Causses 1)
Cycadites
-	Cycadites sp. Cycadites sp. Schenk 1864 part of megaflora (leaf described by Nicklès, 1907)