Where: Lebanon (33.5° N, 35.6° E: paleocoordinates 9.2° N, 31.7° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Early/Lower Barremian (130.0 - 125.5 Ma)
• Amber found in three intervals in the upper part of the Grès du Liban. The upper interval is above the “Banc de Mrejatt,” the middle interval is between the “Banc de Mrejatt” and a pisolitic interval below, and the lower interval is below the pisolitic beds. The "Banc de Mrejatt" includes one biostratigraphically significant benthic foraminifer: Eopalorbitolina transiens (Cherchi and Schroeder, 1999), which is a zonal marker of the Lower to Upper Barremian transition according to Schroeder et al. (2010). Accordingly the “Banc de Mrejatt” is correlated to the transgression of sequence Ba3 of Clavel et al. (2007) and ascribed a late Early Barremian age. The pisolitic interval or “calcaires à pisolithes” of Heybroek (1942), consists of lacustrine shales and marls, locally with pisolites ranging in size from a hazel nut to an orange. Charophyte remains (thalli, utricles, and gyrogonites) are commonly found in this interval (Grambast and Lorch, 1968; Granier et al., 2015). According to Martín-Closas (2015, personal communication), the charophyte association should refer to the Cruciata-Paucibracteatus biozone of Martín-Closas et al. (2009) that spans the Late Barremian–Early Aptian interval. However, due to its topographic location, this interval is older than the “Banc de Mrejatt” and should be considered at least Early Barremian in age (Maksoud et al., 2017, 2022). The entomofaunal similarity of these three intervals could imply that the age of the amber should be the same, i.e., that of the older/lower interval. Amber pieces found in the middle and upper intervals are rounded and commonly bored by martesiine pholadid bivalves.
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; lithified amber
Size classes: macrofossils, mesofossils
Preservation: soft parts, original chitin, amber
Collected by D. Schlee in 1968; reposited in the SMNS
• Specimens in Staatliches Museum fur Naturkunde, Stuttgart.
Primary reference: D. Schlee. 1970. Verwandtschaftsforschung an fossilen und rezenten Aleyrodina (Insecta; Hemiptera). Stuttgarter Beiträge zur Naturkunde 213:1-72 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 124276: authorized by Matthew Clapham, entered by Matthew Clapham on 10.02.2012, edited by Amy Delelli and Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Aves | |
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Arachnida | |
Lebanoecobius schleei n. gen. n. sp.10
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Insecta | |
Libanochlites neocomicus n. gen. n. sp.3
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Archiaustroconops ceratoformis n. gen. n. sp.9, Archiaustroconops hamus2, "Austroconops cretaceous n. sp." = Archiaustroconops cretaceous9, ? Austroconops sp.9, Austroconops sp.9, Austroconops gondwanicus n. sp.9, Austroconops fossilis n. sp.9, Fossileptoconops lebanicus n. gen. n. sp.9, Minyohelea sp.2, "Lebanoconops lebanicus n. sp." = Minyohelea lebanica9, "Lebanoconops minutus n. sp." = Minyohelea minuta9, "Lebanoconops wirthi n. sp." = Minyohelea wirthi9, Minyohelea schleei n. sp.9, "Protoculicoides succineus n. sp." = Gerontodacus succineus9, Lebanoculicoides mesozoicus n. gen. n. sp.9, Archiculicoides schleei n. gen. n. sp.9
Archiaustroconops hamus2 Borkent 2000 biting midge SMNS C23, C10/25 (part Austroconops gondwanicus in Szadziewski, 1996)
"Austroconops cretaceous n. sp." = Archiaustroconops cretaceous9 Szadziewski 1996 biting midge SMNS C31/18
Austroconops fossilis n. sp.9 Szadziewski 1996 biting midge SMNS C31/34, C25, C2 (last two in Borkent, 2000)
"Protoculicoides succineus n. sp." = Gerontodacus succineus9 Szadziewski 1996 biting midge SMNS C31/14
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"Cyclorrhapha indet." = Cyclorrhapha5
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Microphorites extinctus n. gen. n. sp.5
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Trichinites cretaceus n. gen. n. sp.4
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Progonothrips horridus n. gen. n. sp.12, Neocomothrips hennigianus n. gen. n. sp.12, Scaphothrips antennatus n. gen. n. sp.12, Scudderothrips sucinus n. gen. n. sp.12, Exitelothrips mesozoicus n. gen. n. sp.12, Rhetinothrips elegans n. gen. n. sp.12
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Jezzinothrips cretacicus n. gen. n. sp.12
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Heidea cretacica n. gen. n. sp., Bernaea neocomica n. gen. n. sp.
Heidea cretacica n. gen. n. sp. Schlee 1970 whitefly
Bernaea neocomica n. gen. n. sp. Schlee 1970 whitefly | |
Lebanoraphidia nana n. gen. n. sp.1
Lebanoraphidia nana n. gen. n. sp.1 Bechly and Wolf-Schwenninger 2011 snakefly SMNS LB-235-2, SMNS LB-235-1
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